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3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal
3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal
3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal
3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal
3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal
3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal

3520 KC DC-34 BC-669 Ham Radio Crystal 80 meters xtal

$ 7.91

Availability: 100 in stock

Description

3520 KC with a big old rock....
You can use a real crystal in that old tube circuit just like they did in the old days.
This has been double-tested with a WR50B oscillator and a good old fashioned Johnson Adventurer with an adapter   The actual frequency I measured in the Adventurer was closer to 3520.6 kHz, so this one may have aged up a little since WWII, which is not unusual.
This crystal has 3/4" pin spacing.
Put it on the air!