09-17-2018, 03:45 PM
Hi and welcome,
>1.red wire (power) -11 volts
2.blue wire to 27 1st af plate, Did not hook up
3.green wire #1 to 45 plate 2nd af
4 green wire #2 to 45 plate 2nd af
5 black wire to screen grid of 27 1st af. this wire is a center tap in new transformer between green wires.
Red wire should have abt +150vdc. If not as Mike mentioned check the field coil in the spkr. Simple test is to unplug the spkr w/ set OFF and use an ohm meter to test the resistance across the 4 pins on the spkr plug Any combination of two pins should show less than 2 or 3k. If much higher coil is bad.
Blue wire is the plate lead but it won't work if you don't connect it.
Green wires connect to the control grid (1 ea) of the 45 tubes, not the plates.
Black wire connects to B which is the center tap of the hv winding. 27 tube has no screen grid as it's a triode. The original transformer has a center tap too.
GL
>1.red wire (power) -11 volts
2.blue wire to 27 1st af plate, Did not hook up
3.green wire #1 to 45 plate 2nd af
4 green wire #2 to 45 plate 2nd af
5 black wire to screen grid of 27 1st af. this wire is a center tap in new transformer between green wires.
Red wire should have abt +150vdc. If not as Mike mentioned check the field coil in the spkr. Simple test is to unplug the spkr w/ set OFF and use an ohm meter to test the resistance across the 4 pins on the spkr plug Any combination of two pins should show less than 2 or 3k. If much higher coil is bad.
Blue wire is the plate lead but it won't work if you don't connect it.
Green wires connect to the control grid (1 ea) of the 45 tubes, not the plates.
Black wire connects to B which is the center tap of the hv winding. 27 tube has no screen grid as it's a triode. The original transformer has a center tap too.
GL
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
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