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Description: All designed and built by me. Big xmtr is single class C 813 for 300 watts out modulated by pair class B 813's wired as triodes. RF driver is 15 watts max tuned down to 5 watts as driver.. 6146 with 6AG7 oscillator xtal controlled. Audio driver is pair 1614's push pull wired as triodes driven by 12AU7 and preamp is 12AX7. All triode audio.
Little rcvr is 8 tubes dual conversion, big rcvr is 13 tubes dual conversion AM and CW. Small xmtr in progress is pair 807 modulated by pair 807 wired as triodes. All driver stages are built in as is power supply. Crystal controlled. All station mic to preamp audio is balance line 600 ohm and I use vintage style Heil mics, the Heritage and the Pro Classic.
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Posted by: Guest December 17, 2008, 04:09:17 PM
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AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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