One of these days.. The SB-220 will have to make it back into its cabinet.
You guys are so lucky. 400W miserable watts here on a full license. An SB220 would be wasted here
That really does suck, especially considering how bad propagation has been lately.
You could run an SB-220 over there; problem is the anodes need to show a little color from time to time to keep the vacuum good and high. The gettering material is on the anode in the 3-500Zs, and the graphite anode tubes need to show color more often than with the molybdenum anode type tubes. They will keep you warm in the winter though, not that we need that here in the southern end of the People's Republic of Kalifornia.
The amp is still apart for another reason. When I bought it, it had been modified for use on 160 meters, in a very sloppy way. I returned it to stock configuration and rebuilt the power supply changed the plate RF choke to a better one, and installed a step start circuit to soften the inrush current. There is more work to be done, have have been too busy with other projects to finish it. Vacuum relays need to be installed, a timing board for same, and the padding cap for the loading control is getting drifty and should be replaced. Right now it is working well and I have four projects I want to work on this year.
An Atlas 350
Motorola Micom 500E commercial HF radio
My Henry 3KA amplifier,
The LG Precision spectrum analyzer sitting above the Icom IC-756.
But wait there is more........
I have four or five (I lost count) projects I am working for other people.
Oh and........
If anybody can find me a manual for that LG 2720 spectrum analyzer that is not in Korean...
That would be great!