National Thunderball Schematic

Rob s

Member
Messages
1,159
does anybody have a schematic for one of these?
Can't seem to find one anywhere.
It's a 1x15" with a pair of 6l6.
I dug one out and it's been tinkered with but not finished.
thanks in advance
Rob
 

Jeff Gehring

Gold Supporting Member
Messages
7,667
Supposedly the Thunderball is the same (or pretty close) to a Harmony 420...

H420PNG.PNG
 




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