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AA7

 

 

 

15

 

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 these 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, however, customer 

satisfaction is our goal, so in the event that you do have a problem, take note of the following.  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 occasion 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, 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 Electronics, 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 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. 

Summary of Contents for AA7

Page 1: ...ludes internal telescopic whip antenna plus auxiliary antenna input jack for jazzing up existing antennas Clear concise assembly instructions carefully guide you to a finished kit that works FIRST tim...

Page 2: ...wave Motion Detector ML Music Lights Kit LC1 Inductance Capacitance Meter RAMSEY AMATEUR RADIO KITS HR Series HF All Mode Receivers QRP Series HF CW Transmitters CW7 CW Keyer QRP Power Amplifiers RAMS...

Page 3: ...pose 5 Parts List 6 Assembly Instructions 7 Schematic Diagram 8 Parts Layout Diagram 9 Initial Tests 12 Using your AA7 12 Troubleshooting Guide 13 Active Antenna Comparisons 14 The AA7 s Enclosure 14...

Page 4: ...If what you want is a great quality active antenna for a whole lot less than others sell it for the answer is obvious The Ramsey AA7 active antenna An active antenna is a compromise between what is id...

Page 5: ...r hooked to a piece of wire The AA7 was designed with reference to research carried out by Ulrich L Rohde and T T N Bucher who co authored Communications Receivers Principals and Design New York McGra...

Page 6: ...7 F to 10 uF electrolytic capacitor C4 RESISTORS 1 100 ohm brown black brown R4 2 100K ohm brown black yellow R3 R6 1 220K ohm red red yellow R2 1 1M ohm brown black green R1 1 10K ohm PC mount poten...

Page 7: ...solder A cardboard box cut so that it is flat tends to work well if you do not have such a surface conveniently available Always use caution operating and storing a hot soldering iron We like to live...

Page 8: ...AA7 8...

Page 9: ...AA7 9 AA7 PARTS LAYOUT DIAGRAM...

Page 10: ...nstall R6 100K brown black yellow next to C3 NOTE Save the extra wires nipped away from C3 R6 and similar parts You will use them to make jumper wires 5 Notice that Q2 the 2SC2498 transistor is instal...

Page 11: ...ts the antenna jack J1 and the receiver jack J2 directly together when in the turned off position Solder all six points of the switch 20 Install receiver jack J2 Solder all four points of the jack 21...

Page 12: ...nice about the AA7 is that using it is simple enjoyable and immediate We have two suggestions that will increase your enjoyment of the AA7 right from the beginning 1 Prepare a reliable coaxial cable w...

Page 13: ...current limiting resistor of about 1K ohm to the closest PC board ground point Note This can be locations such as the black wire of the battery the mounting case of either jack but it CANNOT be the an...

Page 14: ...hs of the other units resulted in increased signal strength It becomes a question of how much you wish to pay for the shortest possible indoor antenna The AA7 s competition performs well but we are su...

Page 15: ...g 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 gues...

Page 16: ...00 Ramsey Publication No MAA7 Assembly and Instruction manual for RAMSEY MODEL NO AA7 ACTIVE ANTENNA KIT REQUIRED TOOLS Soldering Iron WLC100 Thin Rosin Core Solder RTS12 Needle Nose Pliers MPP4 or R...

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