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40-180 Questions
#5

Well miracles happen. I checked the plate, screen and grid voltages at the 41 tubes and all seemed good and I had a very loud hum when touching the center tap of the volume pot. I haven't rebuilt the top of the chassis yet except to mount the tuning cap so I turned the chassis right side up and tried tuning by hand with the wheel. I wish I had a picture of the look on my face when a local AM station came in blasting loud and clear! The 7G7 RF amp tube that came with the radio tested very weak so I didn't have it installed. Ironically, reception deteriorated badly when I installed it.

The chassis was in rough shape when I got the radio and the previous owner(s) made several incorrect wiring/component changes. I can't believe it's actually working. I still have the rest of the chassis reassembly to go and I have a stripped cabinet awaiting but I think the hard part is done. I've been taking pictures along the way and I'll post some when I finish.


Messages In This Thread
40-180 Questions - by GaryM - 07-22-2012, 02:07 PM
RE: 40-180 Questions - by 7estatdef - 07-22-2012, 05:36 PM
RE: 40-180 Questions - by GaryM - 07-22-2012, 06:34 PM
RE: 40-180 Questions - by 7estatdef - 07-22-2012, 07:35 PM
RE: 40-180 Questions - by GaryM - 07-22-2012, 09:34 PM
RE: 40-180 Questions - by gary rabbitt - 08-01-2012, 08:34 PM



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