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Old 01-01-2012, 06:27 PM
Electronic M's Avatar
Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 15,483
Went to Chester's yesterday and got the remaining tubes and some lytics I needed.
Yesterday night I brought it up on my variac with the plate lead of the HOT and the damper tube unpluged, and was able to tune in good sound from my signal source, and confirm that the H osc. is working properly.

I didn't try for a raster as the screen voltage on the HOT was too low for me to justify connecting the HOT and damper. Also the vertical osc. appears to be dead.
I haven't had enough time to do much today so far, but do know that an open 11K resistor is to blame for the low screen voltage. I may not have an exact replacement for that resistor, and will likely have to do some scrounging later on.

I bought some HV lead at Chester's and striped, folded, and soldered a long section of wire at the end so that it has a decent mesh with the HV connector. Not the best, but it should be good for a test later on.

I'm very happy that the RF and IF seem to be working!
With luck I may soon have a raster.
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