feedback.pdxradio.com forums › feedback.pdxradio.com forums › History › KWAY – The Short History of Forest Grove Radio › Re: KWAY – The Short History of Forest Grove Radio
August 11, 2011 at 7:29 pm
#1982
Participant
I found the instruction manual to the Raytheon RA-250 transmitter (used both by KFGR and KPDQ) online. You can see photos and a schematic of the transmitter there. The RF final amplifier was a push-pull triode design (using the 810 tube) that had to be neutralized. I would imagine that this transmitter would have generated all sorts of nasty IQM and modulation splatter if the neutralization control were not set just right.