Ramsey Electronics HR40 manual Ramsey Kit Warranty

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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

ateam 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 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 µF"). 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.

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Contents ALL Mode Receiver KIT Ramsey Transmitter Kits HR40 Amateur Receiver KIT Introduction Ramsey HR-SERIES Amateur ReceiversAbout Direct Conversion Receivers Circuit Description Parts Supplied with the HR40 KIT CapacitorsLEARN-AS-YOU-BUILD Assembly Strategy HR40 Parts Layout Receiver Assembly Page Page Initial Testing of Your HR40 Required for Initial Testing and AlignmentAlignment Alignment Hint for ALL Direct Conversion ReceiversCW Operation Using Your ReceiverTuning SSB Signals On the AIR TRANS-RECEIVINGSpeaker Operation More Audio Power Another WAYAdding AN LED Power on Indicator Page Troubleshooting Tips General Notes for Experienced QRP Builders Alternate Power SourcesBandspread and Tuning Range Frequency Stability LM386 Audio Output Other Methods of Dial CalibrationDirect Frequency Readout PIN Count Megoh Construction Notes HR40 Ramsey Kit Warranty Factory Repair of Assembled Kits Required Tools Total Solder Points Estimated Assembly TimeHR40 Amateur Receiver KIT Additional Suggested Items