PR10 2 Meter Low Noise Preamplifier Kit

2 METER LOW NOISE PREAMP KIT

Ramsey Electronics Model No. PR10

 20 db Gain, 1 db Noise Figure  Runs on 9 to 15 VDC  Hi-Q tuned input to reduce overload  Small size to fit in any rig  The most popular preamp kit in the USA!  Easy 15 minute assembly Perk up your reception on 2 meters with this easy-to-build and install kit. Works well with any radio - especially effective in repeaters. Rugged design using a microwave transistor outperforms units costing triple the price! Ramsey Customer Use Only Not For Publication

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PARTIAL LIST OF AVAILABLE KITS: RAMSEY TRANSMITTER KITS · FM10A, FM25B, FM30, FM Stereo Transmitters · FM100B, FM35 Professional FM Stereo Transmitters · AM1, AM25 AM Broadcast Band Transmitters RAMSEY RECEIVER KITS · AR1 Aircraft Band Receiver · SR2 Shortwave Receiver  · AA7 Active Antenna RAMSEY HOBBY KITS · LBC6K Laser Beam Communicator · SG7 Personal Speed Radar · SS70C Speech Scrambler/Descrambler · LLS1 Laser Light Show · MD3 Microwave Motion Detector · LEDS1 LED Strobe Light · BE66 Blinky Eyes Animated Display · LTS1 Laser Trip Sensor · ICI1C Infrared Switch Control Interface RAMSEY AMATEUR RADIO KITS · HR Series HF All Mode Receivers · DDF1 Doppler Direction Finder Kit · QRP Series HF CW Transmitters and QAMP Power Amplifiers RAMSEY MINI-KITS Many other kits are available for hobby, school, scouts and just plain FUN. New kits are always under development. Write or call for our free Ramsey catalog. Ramsey Customer Use Only N t For PR10 2 Meter Preamp Kit Ramsey Electronics publication No. PR10 Rev. 1.2c This Printing: May 2015 COPYRIGHT 2006-2010 by Ramsey Electronics, LLC, 590 Fishers Station Drive, Victor, New York 14564. All rights reserved. No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics, LLC. Printed in the United States of America. Publication

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Ramsey Publication No. PR10 Manual Price Only $5.00

2 METER LOW NOISE PREAMP KIT KIT ASSEMBLY AND INSTRUCTION MANUAL FOR

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TABLE OF CONTENTS Introduction to the PR10 ................................... 4 PR10 Circuit Description................................... 4 “Learn-As-You-Build” Kit Assembly ................... 4 Parts List ........................................................... 6 PR10 Parts Layout Diagram .............................. 6 PR10 Schematic ................................................ 7 PR10 Assembly Steps ....................................... 8 Testing and Adjustment .................................... 9 Troubleshooting Guide..................................... 12 Ramsey Kit Warranty ....................................... 15

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RAMSEY ELECTRONICS, LLC 590 Fishers Station Drive Victor, New York 14564 Phone (585) 924-4560

Fax (585) 924-4555 www.ramseykits.com

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INTRODUCTION TO THE PR10 LOW NOISE PREAMPLIFIER A “preamplifier” gives an initial boost, measured in decibels, to the level of a signal before it is further processed by tuned circuits, filters, amplifiers, mixers, detectors, or other circuit stages. Preamps may be designed for either RF or audio use and may be either tuned or broadbanded. The Ramsey Low Noise PR10, 20, and 40 Preamplifiers for 144, 220, and 440 MHz, respectively, differ from our popular SA7 and PR2 broadband preamplifiers in that these models include high-Q tuned input circuits to pre- select the desired frequency range, restricting the strength of other out-of- band signals. Also, the microwave transistor is biased for best low noise performance. CIRCUIT DESCRIPTION L1 and C2 form a tuned input filter for the preamp to reject out-of-band signals. The 3 db bandwidth of this filter is 6MHz. L1 is adjustable for peak performance. The 2SC2570A transistor is a bipolar silicon NPN low noise UHF/VHF amplifier in a TO-92 case suitable for service up to 5 GHz, with maximum device dissipation of 600 milliwatts. Q1 has a very low noise figure, determined by the bias established by R1 and R2. The actual circuit is about as simple as they come. Maximum gain and freedom from oscillation are accomplished by the quality of workmanship in parts installation and I/O connector wiring. RAMSEY Learn-As-You-Build KIT ASSEMBLY There aren’t that many solder connections on the PR10 printed circuit board, but you should still practice good soldering techniques.  Use a 25-watt soldering pencil with a clean, sharp tip.  Use only rosin-core solder intended for electronics use.  Use bright lighting; a magnifying lamp or bench-style magnifier may be helpful.  Do your work in stages, taking breaks to check your work. Carefully  brush away wire cuttings so they don't lodge between solder connections. Ramsey Customer Use Only Not For Publication

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We have a two-fold "strategy" for the order of the following kit assembly steps. First, we install parts in physical relationship to each other, so there's minimal chance of inserting wires into wrong holes. Second, whenever possible, we install in an order that fits our "Learn-As-You Build" Kit building philosophy. This entails describing the circuit that you are building instead of just blindly installing components. We hope that this will not only make assembly of our kits easier, but help you to understand the circuit you’re constructing. For each part, our word "Install" always means these steps: 1. Pick the correct part value to start with. 2. Insert it into the correct PC board location. 3. Orient it correctly, follow the PC board drawing and the written directions for all parts - especially when there's a right way and a wrong way to solder it in. (Diode bands, electrolytic capacitor polarity, transistor shapes, dotted or notched ends of IC's, and so forth.) 4. Solder all connections unless directed otherwise. Use enough heat and solder flow for clean, shiny, completed connections. Ramsey Customer Use Only Not For Publication

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PR10 PARTS LIST CAPACITORS

 1 5pF disc capacitor (C1) [marked 5]  1 22pF disc capacitor (C2) [marked 22]  1 10pF ceramic or disc capacitor (C3) [marked 100 or 10]  1 100pF disc capacitor [marked 100 or 101] (C4)  1 .01uF disc capacitor [may be marked .01, 103, or 10nF] (C5) RESISTORS  1 470 ohm [yellow-violet-brown] (R1)  1 100K ohm [brown-black-yellow] (R2) OTHER COMPONENTS  1 PRX printed circuit board  1 Shielded adjustable coil (L1) [metal can with brown plastic bottom]  1 2SC2570A microwave bipolar transistor (Q1) REQUIRED, NOT SUPPLIED  9 - 15 VDC power source  RF input and output connectors (your choice of type) Ramsey Customer Use Only Not For PR10 BOARD PARTS LAYOUT DIAGRAM

JUMPER

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* NOTE: C6 is not used for the PR10

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PR10 SCHEMATIC

5pF

10pF

L1

C2 22pF

JUMPER (Bottom Of Board) Ramsey Customer Use Only Not For JUMPER INSTALLATION 2SC2570

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PR10 ASSEMBLY STEPS Soldering nine parts to a PC board is not a big job, but good performance of the PR10 requires attention to keeping all leads as short and neat as possible. The order of parts installation is not critical for this and other small kits, so the purpose of the following suggested order of assembly is just to make it as easy as possible for you to get the parts placed correctly on the first try. For your convenience, the PC board is considerably enlarged. While working with a small PC board such as the PR10, a miniature vise plus a magnifier may prove very helpful. In all steps below, the word install means to insert the component (oriented correctly) into the right holes, solder all wires, and cut or nip away excess wire flush with the solder connection. IMPORTANT: Keep ALL component leads as short as possible!  1. Install R1, 470 ohm (yellow-violet-brown). Notice from the schematic that R1 determines Q1’s collector voltage and therefore the bias voltage fed by R2.  2. Install R2, 100K ohms (brown-black-yellow).  3. Install C4, 100pF (marked 100 or 101).  4. Install C5, .01uF (marked 103). Disc capacitor C5 is the bypass capacitor for the DC voltage supply points on the PC board.  5. Install Q, 2SC2570A. Press Q1 into its respective location on the PC board, which should be quite obvious by the placement of the previous parts. Orient the flat side as shown on the PC board illustration. Press the transistor in place firmly with finger pressure so that a minimum amount of wire leads are exposed above the PC board. In soldering, do not be afraid to apply enough heat to make good, clean, solid connections.  6. Install C3, 10pF (marked 10 or 100).  7. Install C2, 22pF (marked 22). C2 and L1 form the tuned input filter.  8. Install C1, 5pF (marked 5). C1 is the antenna input coupling capacitor.  9. Install L1, the shielded coil. L1 fits only one way, with the single lead toward C2. This coil has metal mounting tabs. Be sure to use plenty of heat to solder these two mechanical points after making sure that L1 is pressed firmly against the component side of the PC board.  10. You will notice there are two(2) empty holes next to L1’s single lead. Using a piece of lead clipped from one of the components solder a jumper between the single lead of L1 and the empty hole next to the lead as shown on page 7. Ramsey Customer Use Only Not For Publication

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PROGRESS SUMMARY: The wiring of your Ramsey PR series preamp PC board is now complete. It will take you less than a minute to completely recheck every single soldering connection as well as the correctness of parts installation. INPUT AND OUTPUT CONNECTIONS Use short pieces of miniature coax such as RG-174 to connect the PC board input and output points to the RF connectors you wish to use. For the neatest installation, it is good practice to pre-tin the coax ends before soldering to the PC board. Plan your probable applications with as much foresight as possible so that you don’t spend more on cable adapters than you did on the kit! TESTING AND ADJUSTMENT With your preamp installed between antenna and receiver, the only adjustment needed is the obvious one: peaking L1 for maximum signal strength. This may require more patience than most of us would think, because the adjustment should be made on a weak signal transmitting long enough to permit the adjustment. Since this is a low noise preamp, don’t look for an imaginary increase in noise level or waste time trying to make a strong repeater signal seem stronger! CAUTION Under no circumstances should transmitter RF ever be applied to the input or output of this preamplifier. Even though this sounds like unneeded advice and common-sense knowledge, we should remember that most of today’s receivers are in transceiver configuration, and that all it takes is one accidental push of a button out of habit, or an inadvertant bump of a keyer, to destroy a preamplifier. PR10 ON-OFF SWITCHING SUGGESTION Depending on your particular application and intended frequency, you may wish to use a DPDT power switch with one pole controlling voltage and the other pole connecting the input and output of the PR10 when the DC supply voltage is in the “OFF” position. This setup is very practical when you want to switch the preamp in and out of a receiver antenna line. ALL RF connections to the switch should be as short as possible. Use good quality miniature coaxial cable. STRONG SIGNAL OVER-LOADING If you live in an area where there are very strong nearby stations, you may experience overloading of the receiver to which the preamp is connected. This is especially true for small hand-held radios - after all, what do you think they leave out to make the size small? Front-end filtering components are large, but they serve a needed purpose in high RF environments. Unfortunately, there is little you can do except to add the missing filtering. Digi-Key (1-800- digi-key) sells the TOKO line of helical filters which are excellent. Expect to pay about twice as much as you paid for this preamp! Ramsey Customer Use Only Not For Publication

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A 2 METER “ACTIVE ANTENNA” For situations where a simple indoor receiving antenna is needed, the PR10 preamp will add considerably improved performance to a whip antenna adjusted to 1/4 or 5/8 wave. And, for a very well engineered true active antenna for both HF and VHF at a low price, take a look at our model AA7 Active Antenna kit which features an on-board battery supply, adjustable gain control, heavy-duty whip, HF-VHF mode switching, and jack for using external antennas. T-R SWITCHING CONSIDERATIONS FOR TRANSCEIVER OPERATION If you wish to use the same antenna for transmit and receive, T-R switching is, of course, essential. The T-R switching may be any of the following:  manual in-line switch (NOT recommended for VHF/UHF)  relay controlled by push-to-talk line  RF sensing T-R relay (Ramsey Kit No. RFS1)  PIN diode T-R switch PIN diode applications are discussed in amateur radio magazines and the ARRL Handbook. 2SC2570A CHARACTERISTICS: The 2SC2570A transistor is a bipolar silicon NPN low noise UHF/VHF amplifier in a TO-92 case, suitable for service up to 5GHz, with maximum device dissipation of 600 milliwatts. Other maximum ratings: Collector -to-Base Voltage: 25 V Collector-to-Emitter Voltage: 12 V Base-to-Emitter Voltage: 3 V Maximum Collector Current: 70 mA You may order replacements from us, Ramsey Electronics, by contacting our sales department at 585-924-4560. A type NTE10 after market replacement transistor supplied by NTE Electronics Inc. may also be used. Their web site is “ww.nteinc.com”. You can check there for information of where to purchase them. Ramsey Customer Use Only Not For Publication

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THE RAMSEY PR2: THE ULTIMATE BROADBAND PREAMPLIFIER After you find out how practical a well-built PR10 can be for 2 Meter operating, you will be quite impressed with the “all bands” higher gain (also with very low noise) plus the convenient AC power supply, BNC I/O connectors and LED ON-OFF indicator of the Ramsey PR2, available factory-wired. The PR2 uses advanced microwave MMIC for signal-to-noise figures that are typically 27db (over 4 “S-units”) gain, and only 2-3db of noise increase. This is a workhorse preamp that’s so easy to try out on many different operating and experimenting applications.

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TROUBLESHOOTING GUIDE The only possible causes for malfunction of the PR10 are faulty or incorrectly installed parts. Re-check your work. Transistor replacement information is provided. Poor performance such as oscillation can be caused by bad parts- mounting (excessive lead length of resistors or capacitors). Erratic operation will be traced to poor input, output, or voltage connections, or a faulty solder connection. CONCLUSION Please make sure your preamplifier is working as originally designed and that you read the terms of the Ramsey Kit Warranty before attempting any modification of your kit. We hope you’ll enjoy the added receiving performance offered by your Ramsey PR10 and that you’ll look forward to building other Ramsey kits for VHF, HF...and for fun! We sincerely hope that you will enjoy the use of this Ramsey product. As al- ways, we have tried to compose our manual in the easiest, most “user friendly” format that is possible. As our customers, we value your opinions, comments, and additions that you would like to see in future publications. Please submit comments or ideas to: Ramsey Customer Use Only Not For Ramsey Electronics, Inc. Attn. Hobby Kit Department 590 Fishers Station Drive Victor, NY 14564 or email us at: techsupport@ramseyelectronics.com And once again, thanks from the folks at Ramsey!

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NOTES ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Ramsey Customer Use Only Not For Publication

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THE RAMSEY KIT WARRANTY

PR10  15 Please understand that our Tech Support Group personnel are not volunteers! They are a dedicated group of highly trained technicians each configured with a very properly equipped test bench. Upon receipt of a repair, the setup, testing, diagnosis, repair, paperwork, and repacking of your kit requires nearly an hour of their time regardless of the size or complexity of the kit! The minimum repair fee represents ½ hour Tech Support time at $50/hour USD. We try to keep all kit repairs within the realm of the $25 flat rate whenev r possible…and trust us; we xceed that time spent on most kits rec ived more oft n than not! 7. CONTACT INFORMATION AND RETURN ADDRESS: Technical Questions Product Repair & Returns RAMSEY ELECTRONICS, LLC Attn: Tech Support 590 Fishers Station Drive Victor, NY 14564 585-924-4560; 585-924-4886 Fax techsupport@ramseyelectronics.com RAMSEY ELECTRONICS, LLC Attn: Repairs 590 Fishers Station Drive Victor, NY 14564 585-924-4560; 585-924-4886 Fax repairs@ramseyelectronics.com Publication The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved without contacting the factory. Notice that this is not a "fine print" warranty. We want you to understand your rights and ours too! All Ramsey kits will work if assembled properly. The very fact that your kit includes this new manual is your assurance that a team of knowledgeable people have field-tested several "copies" of this kit straight from the Ramsey Inventory. If you need help, please read through your manual carefully, all information required to properly build and test your kit is contained within the pages! However, customer satisfaction is our goal, so in the event that you do have a problem, take note of the following. 1. DEFECTIVE PARTS: It's always easy to blame a part for a problem in your kit, Before you conclude that a part may be bad, thoroughly check your work. Today's semiconductors and passive components have reached incredibly high reliability levels, and its sad to say that our human construction skills have not! But on rare occasions a sour component can slip through. All our kit parts carry the Ramsey Electronics Warranty that they are free from defects for a full ninety (90) days from the date of purchase. Defective parts will be replaced promptly at our expense. If you suspect any part to be defective, please mail it to our factory for testing and replacement. Please send only the defective part (s), not the entire kit. The part(s) MUST be returned to us in suitable condition for testing. Please be aware that testing can usually determine if the part was truly defective or damaged by assembly or usage. Don't be afraid of telling us that you 'blew-it', we're all human and in most cases, replacement parts are very reasonably priced. 2. MISSING PARTS: Before assuming a part value is incorrect, check the parts listing carefully to see if it is a critical value such as a specific coil or IC, or whether a RANGE of values is suitable (such as "100 to 500 uF"). Often times, common sense will solve a mysterious missing part problem. If you're missing five 10K ohm resistors and received five extra 1K resistors, you can pretty much be assured that the '1K ohm' resistors are actually the 'missing' 10 K parts ("Hum-m-m, I guess the 'red' band really does look orange!") Ramsey Electronics project kits are packed with pride in the USA. If you believe we packed an incorrect part or omitted a part clearly indicated in your assembly manual as supplied with the basic kit by Ramsey, please write or call us with information on the part you need and proof of kit purchase. 3. FACTORY REPAIR OF ASSEMBLED KITS: To qualify for Ramsey Electronics factory repair, kits MUST: 1. NOT be assembled with acid core solder or flux. 2. NOT be modified in any manner. 3. BE returned in fully-assembled form, not partially assembled. 4. BE accompanied by the proper repair fee. No repair will be undertaken until we have received the MINIMUM repair fee (1/2 hour labor) of $25.00, or authorization to charge it to your credit card account. 5. INCLUDE a description of the problem and legible return address. DO NOT send a separate letter; include all correspondence with the unit. Please do not include your own hardware such as non- Ramsey cabinets, knobs, cables, external battery packs and the like. Ramsey Electronics, LLC reserves the right to refuse repair on ANY item in which we find excessive problems or damage due to construction methods. To assist customers in such situations, Ramsey Electronics, LLC reserves the right to solve their needs on a case-by-case basis. The repair is $50.00 per hour, regardless of the cost of the kit. Please understand that our technicians are not volunteers and that set-up, testing, diagnosis, repair and repacking and paperwork can take nearly an hour of paid employee time on even a simple kit. Of course, if we find that a part was defective in manufacture, there will be no charge to repair your kit (But please realize that our technicians know the difference between a defective part and parts burned out or damaged through improper use or assembly). 4. REFUNDS: You are given ten (10) days to examine our products. If you are not satisfied, you may return your unassembled kit with all the parts and instructions and proof of purchase to the factory for a full refund. The return package should be packed securely. Insurance is recommended. Please do not cause needless delays, read all information carefully. 1. GENERAL: Notice that this is not a "fine print" warranty. We want you to understand your rights and ours too! All Ramsey kits will work if assembled properly. The very fact that your kit includes this new manual is your assurance that prior to release of this kit, a varied group of knowledgeable people have assembled this kit from scratch using this manual. D ring this p ocess, changes and additions are noted by each assembler and integrated into the final version of the manual…which you have! If you need help, please read through your manual carefully, all information required to properly build and test your kit is contained within the pages! However, customer satisfaction is our goal, so in the event that you do have a problem, please note the following: 2. DEFECTIVE PARTS: It's always asy to blame a part for a problem in your kit. Before you conclude that a part may be bad, thoroughly check your work. Today's semiconductors and passive components have reached incredibly high reliability levels, and it’s sad to say that our human construction skills have not! But on rare occasions a sour component can slip through. All of our kit parts carry the Ramsey Electronics Warranty that they are free from defects for a full ninety (90) days from the date of purchase. Defective p rt will be replaced pr mptly at our xpense. If you suspect any part to be d fective, please mail it to our factory for testing and replacement. Please send only the defective part(s), not the entire kit. The part(s) MUST be returned to us in suitable condition for testing. Please be aware that testing can usually determine if the part was truly defective or damaged by assembly or usage. Don't be afraid of telling us that you “damaged it” or “burned it out”, we're all human and in most cases, replacement parts are very reasonably priced. Remember, our goal for over three decades is to have a happy customer, and we’re here to work WITH you, not AGAINST you! 3. MISSING PARTS: Before assuming a part value is missing, check the parts listing carefully to see if it is a critical value such as a specific coil or IC, or whether a RANGE of values is suitable for the component (such as a "100 to 500 uF capacitor"). Often times, common s nse will solv mysterious missing par p oblem. If you're missing five 10K ohm resistors and received fiv extra 1K resistors, you can pretty much be assured that the “1K ohm” resistors are actually the “missing” 10 K parts ("Hum-m-m, I guess the orange band really does look red!") Ramsey Electronics project kits are packed with pride in the USA by our own staff personnel. While separate QC checks are made on all product kits, we too are human, and once in a great while there is a chance something can get through those checks! If you believe we packed an incorrect part or omitted a part clearly indicated in your assembly m nual for your Ramsey kit, please contact us with information on the part you need. Contact our Repair Department via telephone, email or writing. Please have your invoice number and date of purchase handy. 4. REFUNDS: All Ramsey products, kit or factory assembled units have an unconditional 10 day (from the date of purchase) return policy to examine our products. I you are not satisfied for any reason, you may return your nassembled kit with all th parts and instructions, or your factory assembled an tested product, together with your proof of p r hase to the factory for a full refund less shipping. The return package should be packed securely. Insurance and tracking is highly recommended. A reminder, this applies to unassembled kits. They must be in the same new condition as received, not partially assembled! Assembled kits cannot be returned for credit. No RMA’s are required; simply return to Ramsey Electronics LLC, Attn: Product Returns, 590 Fishers Station Drive, Victor, NY, 14564. If you have any questions, please co tact us t 585-924-4560. 5. FACTORY REPAIR OF ASSEMBLED KITS: Most of us at Ramsey are technically oriented and we do realize that things happen! Even following the best practices, with all of the best intentions, there is that chance that your kit doesn’t work when you have completed it. Each manual goes into detailed troubleshooting based on the specific kit to help you troubleshoot the problem. We have found that 95% of returned kits involved wrongly installed components (wrong part or backwards polarity). This section of the warranty assumes you have gone through all those steps, and have now reached the point that you need to send it back. To qualify for factory repair of customer assembled kits, the following conditions apply: 1. Kits must not be assembled with acid solder flux 2. Kit boards or circuits must not be modified in any manner from the version received 3. Kits must be fully assembled, not partially assembled. Our warranty does not include “finishing” your kit! 4. Must include a full description of the problem encountered including the troubleshooting steps you have already done. 5. Must not include non-standard, non-Ramsey accessories, cases, enclosures, knobs, etc. or any batteries. 6. Must include the mi imum repair f e of $25 USD in the form of check, money order o credit card authorization. 7. Ramsey Electro ics, LLC reserves th right to refuse any rep ir ue to exc ssive errors in construction methods. 8. If, due to customer construction methods, the repair is estimated to exceed the minimum flat rate, Ramsey Electronics, LLC will contact the customer to discuss the repairs needed and to receive authorization and payment for repair prior to repair. 9. In the unlikely case that a defective part is found to be the cause of the problem, the repairs will be made at no-charge to the customer, and any payments received for repair will be returned or credited back to the customer. 10. Properly pack your kit, insure the package, and use a carrier that can be tracked. Ramsey Electronics, LLC is not responsible for any loss or damage in shipment. Send the package together with your repair fee to the return address below. No RMA is required. 6. FACTORY REPAIR FEES: Ramsey Cus omer Use Only Not For

TABLE OF CONTENTS Introduction to the PR10.................................... 4 PR10 Circuit Description ................................... 4 “Learn-As-You-Build” Kit Assembly.................... 4 Parts List............................................................ 6 PR10 Parts Layout Diagram............................... 7 PR10 Schematic................................................. 7 PR10 Assembly Steps........................................ 8 Testing and Adjustment ..................................... 9 Troubleshooting Guide ..................................... 12 Ramsey Kit Warranty ....................................... 15

REQUIRED TOOLS  Soldering Iron  Thin Rosin Core Solder  Needle Nose Pliers  Small Diagonal Cutters ADDITIONAL SUGGESTED ITEMS  Helping Hands Holder for PC Board/Parts  Desoldering Braid Ramsey Customer Use Only Not For

TOTAL SOLDER POINTS 28 ESTIMATED ASSEMBLY TIME Beginner............... 2 hrs Intermediate......... 1 hrs Advanced............. 20min Publication

Manual Price Only: $5.00 Ramsey Publication No. PR10 Assembly and Instruction manual for: RAMSEY MODEL NO. PR10 2 METER LOW NOISE PREAMP KIT

RAMSEY ELECTRONICS, LLC 590 Fishers Station Drive Victor, New York 14564 Phone (585) 924-4560 Fax (585) 924-4555 www.ramseykits.com

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