Jim Candela wrote:
BTW, that was back in 1975 time frame. Those same 8417's are still in use at ARS W5OMR..
In use in the Speech Amp as push-pull parallel 8417's in a Bogen CB-120.
The audio comes straight off the plates and into a 6k Ohm isolation transformer whose secondary acts as a high-Z choke, and the audio goes on to the bases of a pair of ECG164's lashed up in an emitter follower, with the emitter output lines directly driving the grids of the 250TH modulator.
-- 73 = Best Regards, -Geoff/W5OMR ______________________________________________________________ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
