| Brand | Unbranded |
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Check the listing for details. SCHEMATIC ONLY AM/CW Ham Radio Transmitter 80/40 Meter Bands Heising Modulation. Condition: New. Listed at 24.00 USD. In am mode, this transmitter employs Heising modulation, using a high impedance, crystal mic input to a 6SL7 dual triode, driving a 6V6, which then modulates the 6AG7/7AD7 RF output tube. As with any ham radio transmitter using vacuum tubes, this circuit can be quite lethal if handled without proper respect and safety precautions.
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