[AMRadio] [AMRadio} 4cx250 / 4x150a socket wanted

Brett Gazdzinski Brett.Gazdzinski at verizon.net
Mon Mar 4 22:12:03 EST 2013


I had a nice QSO on 40 meters with w3mtg (I think it was) last month, and he 
was running a screen modulated 4cx250b that sounded great, so I thought I 
would build a 4cx250b rf deck to experiment with.
It came out very well, I just swappedit out for my 3x 4D32 rf deck and used 
the same control deck.
Everything is metered and adjustable, so its handy for experiments.
I put various transformers in the screen feed and adjusted things in every 
way, and it sounded nasty no matter what I tried.
At best, you could understand my speech, but it was nasty.
As another experiment, I turned on the modulator (pair of 811's) and it 
worked very well.
At 1200 volts I get close to 200 watts out, and it modulated very well.
So I want to rebuild it with two tubes in it, but i only have 2 sockets, one 
all metal thing, and one plastic (green?) one that mounts with about 8 
screws.
The metal one seemsto have no mounting screws or holes???

I will trade one for the other, or other parts, but I need two matching 
sockets.

Brett
N2DTS 



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