Mark, It's a 40 meter only class C RF deck, two 4D32 tubes in parallel pie net output. I use the vernier drives because they have numbers and pointers, so I can reset things to where they need to be. On the other multi band rigs, I mount a chart that lists the settings for each band. This rig is only one band, but I wanted it to match the others. I use the same meters, the same knobs, the same switches, lights, etc. on each rig.
I had the rig in the picture on the air a few weeks ago, using a modulator from another rig. The rf deck, control deck, and power supply are done, I need to build the modulator deck, and its power supply. I was running it at 1200 volts at about 300 ma for about 250 watts out, and tried 1500 volts for a while. It seemed to work quite well. Brett N2DTS -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of W1EOF Sent: Sunday, January 08, 2006 8:10 PM To: Discussion of AM Radio Subject: RE: [AMRadio] coils Hi Brett - Nice looking work. You must take your time, and I'm guessing enjoy some wine as you build. :-) Is that an amplifier or an exciter? I'm curious about the vernier dials. I've never seen them used except on a self-excited radio where the tuning is *VERY* critical. Otehrwise it would seem like a real pain to have to twist the knob so many times to go from one band to another. 73, Mark W1EOF
