[Amps] Alpha 78

[k7fm]

"Many years of hard use might crystalize the solder at the switch and
elsewhere in RF paths, it should be removed and fresh solder flowed on"

I purchased an Alpha 76 "as-is".  The main problem was the plate tank 
circuit had desoldered parts.  It did not even look like it had a hard life. 
I resoldered things and it worked fine.  While I had it apart, I added peak 
reading to the wattmeter and an led array between the meters (no holes of 
course) to monitor grid current.

I intended to change out to the 3CX800A7 tubes as I did with my 76A, but the 
tubes keep working and working, like the Energizer bunny.

When I changed my 76A to two 3CX800A7 tubes, I changed to chimney to split 
the third exit hole to the two tubes.  But, I like Carl's suggestion of 
larger exit holes.  I have installed new black panels so punching additional 
holes for the exhaust will be me a chance to black powder coat the cabinet. 
Now that my "best" friend has a powder coat machine, cabinet finishing has 
moved forward.

73,  Colin  K7FM