21 MHz (15 meter) Superheterodyne Ham Radio Receiver Kit For Sale -

This kit need assembly and frequency counter for adjust. Ships within 24 hours (business day) by Thailandpost.
21 MHz (15 meter band) Superheterodyne Ham Radio Receiver Kit,
Use JFET=2 ,NE602=2, MC1350 = 1, MC1458 = 1, LM386 = 1.
Can receive 21 MHz CW /SSB/Digital Mode.
IF = 15.000 MHz.
VFO = 6 MHz.
Use double tuned band pass filter.
Power requirement 12 to 15volt DC.
PCB size: 5.5cm x 14cm.

*** FREE!!! Volume , Main Tune Knob assembling circuit is completed stretch or shrink T50-6 (yellow core) in VFO cricuit until reading frequency is about 6 MHz.

For example, if you want to listen to CW mode on 21 MHz you should adjust the frequency range of 6.000 - 6.060 MHz.
.. But if you want to listen to SSB you should adjust the frequency range of 6.190 - 6.250 MHz or more.

18 pF capacitor in VFO circuit you can change to more value if need wider bandwidth.
If possible, you must use 10 turns Pot is very easily to frequency turning the receiver on about 5 minutes I try to bring the sound from the receiver to the computer this circuit can decode JT65 system .. This means the receiver has good frequency stability.

So I used Google to translate ... sorry if difficult to read.

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