The R390a is sold, Bob (wa3gfz) jumped on this one and picked it up last night!
I have had that R390a for about 20 years, and its been working fine for the last 15 years at least, after a rash of broken gear clamps the first couple of years I had it. I hope Bob has as good a performance from it as I did. I don't know how things are normally done as far as selling, but I think Bob actually called my house first, and left a message with my son. I still have the like new SX17, which I thought sounds better than the R390a audio off the detector into the Marantz amp. I now have an almost empty rack for the new project, I may move the push pull 812a rig rack into its spot, if I can find a place for the audio power amp, the only thing in the rack now. Or, maybe I will leave the racks in place and move the 812A rig into the empty rack, its closer to the operating desk. The new rig (pair of 4D32) is coming along nicely so far, the RF deck is drilled, punched, and painted, just needs to be assembled, then its onto the RF control deck. I am making the decks so they can be used with anything, variac bias supply, variac screen supply, etc. The RF deck is 40 meters only, but if I want, I could build an 80 meter deck to go with the 40 meter one. The push pull parallel KT90 modulator deck is laid out parts wise, and I have all the parts needed for it. One power supply deck parts are gathered, I think I will do separate variac supplies for RF and modulator decks. I made an interesting discovery Sunday. I have had a few reports of my audio not having a lot of highs, even though I boost the mid and upper voice frequencies. There is nothing to limit the highs in any of the rigs, other than the mod iron, and even crappy mod iron will typically pass high enough frequencies to sound good, and found the cord between the mike preamp and the power amp was the problem. It was a 15 foot piece of rg8m, the little coax, with phono ends on it. You would think something that works for RF service up into VHF would be able to pass high audio frequencies, but no. I wonder why it was so poor for audio, cutting stuff above about 3000 cycles a lot???? Brett N2DTS > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Brett Gazdzinski > Sent: Monday, January 12, 2004 11:13 AM > To: [email protected] > Subject: RE: [AMRadio] RE: r390a, sx17, t4xb for sale > >
