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Pin 8 should have R9 & C27
Pin 1 '' '' '' '''' '' No connection. but probably used as a tie point.
Pin 2 & 7 "" "" Filaments
Pin 3 "" "" C26, C29, & one side of output trans. R10 maybe ?
Pin 4 Other side of C26 & other end of output trans.
pin 5 " " " R8 & C25 & one side of field coil.
pin 6 " " No connection but probably used as tie point.
Some of the parts might not be connected close to the tube socket and you might have to follow a wire to find them.
I hope I got this right, eyes getting dizzy trying to follow and write it down. 
Messages In This Thread
RE: marconi 157 - by KCMike - 11-27-2016, 10:54 AM
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