Ramsey Electronics HR20 manual ALL Mode Receiver KIT

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20 METER (14 MHZ)

ALL MODE RECEIVER KIT

Ramsey Electronics Model No.

HR20

Here’s the ideal mini-receiver for catching all the busy action on 20 meters from your office, home or on trips!

Small in size but BIG in features:

•Easily tunes SSB, CW, RTTY and AM

•Smooth varactor tuning of any desired 250KHz segment of the 20 meter band, easily retuned

•Front panel RF Gain, Tuning and Volume controls

•Efficient LM-386 Audio amplifier drives speaker or earphones with a clean, crisp audio

•Informative manual answers questions on receivers, hookups and uses - enhances resale value, too!

•Ideal companion to the Ramsey QRP20 CW Transmitter

•Runs on a standard 9-volt battery

•Clear, concise assembly instructions lead you to a finished product that works FIRST time!

•Add our case and knob set for a finished ‘Pro’ look. Cases match all Ramsey products.

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Contents ALL Mode Receiver KIT Partial List of Available Kits Ramsey Transmitter Kits HR20 Amateur Receiver KIT Ramsey HR-SERIES Amateur Receivers IntroductionAbout Direct Conversion Receivers Circuit Description Parts Supplied with the HR20 KIT CapacitorsLEARN-AS-YOU-BUILD Receiver Assembly Strategy HR20 HR20 Parts Layout Diagram Receiver Assembly HR20 HR20 Required for Initial Testing and Alignment Initial Testing of Your HR20Alignment Hint for ALL Direct Conversion Receivers AlignmentTuning SSB Signals Using Your ReceiverCW Operation On the AIR TRANS-RECEIVINGSpeaker Operation Adding AN LED Power on Indicator More Audio Power Another WAYTroubleshooting Tips General Notes for Experienced QRP Builders Alternate Power SourcesBandspread and Tuning Range Other Methods of Dial Calibration Frequency StabilityDirect Frequency Readout LM386 Audio Output HR20 Construction Notes Ramsey Kit Warranty Factory Repair of Assembled Kits HR20 Amateur Receiver KIT Total Solder Points Estimated Assembly TimeRequired Tools Additional Suggested Items