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QRP30 

 23  

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!   
 

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 it’s 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 Elec-
tronics 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 Electron-
ics, Inc., 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 Elec-
tronics, Inc., 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 as-
sembly). 
 

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. 

Summary of Contents for QRP30

Page 1: ...Front panel switching of TWO channels and includes a crystal for 10 108 MHz the International QRP frequency Excellent and clean keying waveform Built in antenna T R switch Operates on 12 15 volts DC...

Page 2: ...Direction Finder HR Series HF All Mode Receivers QRP Series HF CW Transmitters CW7 CW Keyer CPO3 Code Practice Oscillator QRP Power Amplifiers RAMSEY MINI KITS Many other kits are available for hobby...

Page 3: ...0 Parts layout diagram 11 Assembly instructions 12 Crystal oscillator testing 16 Initial tests 17 Verifying RF power 18 Maximizing RF power output 19 Options for finishing project 20 Enclosure ideas 2...

Page 4: ...reducing power output can be the switching off of a linear power amplifier or switching from 25 to 5 watts on your new Radio Shack 10 meter rig or turning back the carrier level control on most moder...

Page 5: ...oretical facts we should know 1 An S unit on a receiver s S meter or in the R S T system consists of a 6 decibel increase or decrease of output power received from a transmitter 2 Power needs to be in...

Page 6: ...gnal reports of 20 over S 9 and more can be given without even needing 1000 watts or a beam antenna Assuming the 20 is an accurate report consider this example of power reduction over the same path S9...

Page 7: ...amsey transmitter especially challenging since they prefer the new world of milliwatt operation known as QRPp And yes the ones who have conquered the milliwatt world ARE setting records with milliwatt...

Page 8: ...orm a low pass filter Butterworth to match the output of Q3 to the antenna and reduce harmonics to acceptable levels as specified by the FCC When the keying line is closed Q4 conducts 12VDC to the osc...

Page 9: ...R10 1 470 ohms yellow violet brown R6 2 1K ohms brown black red R12 13 4 10K ohms brown black orange R4 5 14 15 1 47K ohms yellow violet orange R8 2 1 megohm brown black green R2 3 1 10K potentiomete...

Page 10: ...QRP30 10...

Page 11: ...QRP30 11 QRP30 PARTS LAYOUT DIAGRAM...

Page 12: ...mitter has also developed some familiarity with general electronics practices and language Therefore you can expect the following procedures to move along with less of the hand holding which we offer...

Page 13: ...transmission and permits the antenna to be connected to the receiver jack during key up conditions To further complete this section of the circuit we now install the first of three 100 uh RF chokes Th...

Page 14: ...r comes complete with one crystal in the CW range usually the suggested QRP international calling frequency S1 permits your choice of any two installed crystals the one that comes with your kit and an...

Page 15: ...er before your Ramsey transmitter is ready for testing and on the air operation It is common for experimental projects to give disappointing results because of inefficient haywire hookups as soon as t...

Page 16: ...ings the frequency down a fact to remember if you order additional crystals NOTE TO NEWCOMERS Please be aware that even this one transistor oscillator is itself a transmitting device quite capable in...

Page 17: ...the time to make proper preparations for testing and using your transmitter As we suggest in all Ramsey Electronics kit projects now might also be an excellent time to take a break and then come back...

Page 18: ...the antenna line capable of accurately measuring low output power in watts and even milliwatts And it cost you less than what you paid for the transmitter kit Right If not we have a few other ideas f...

Page 19: ...ttmeter capable of showing 1 10 watt differences in RF power MAXIMIZING RF POWER OUTPUT Hopefully the introductory discussion about the amount of power increase needed for significant boosts in RST re...

Page 20: ...the inexpensive and attractive Ramsey case and knob set will give your unit that nice finished look and increase its resale value These sturdy black instrument cases are supplied with printed overlaye...

Page 21: ...positions 1 A resonant antenna dipole or quarter wave vertical 2 Good quality coaxial feedline and connectors 3 An effective earth ground We cannot expect good results from low levels of RF output if...

Page 22: ...ALL assembly steps and the quality of all solder connections In addition check those too obvious things we like to take for granted cables and connectors polarity of the DC supply If the oscillator s...

Page 23: ...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 b...

Page 24: ...30 30 METER CW TRANSMITTER KIT REQUIRED TOOLS Soldering Iron Ramsey WLC100 Thin Rosin Core Solder Ramsey RTS12 Needle Nose Pliers Ramsey MPP4 or RTS05 Small Diagonal Cutters Ramsey RTS04 OR Technician...

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