Philco 48-2500 Restoration Blog

[Findm-Keepm]

Originally Posted by Tom Albrecht

Ok, so my solid state voltage tripler has arrived. It has a few more terminals than I anticipated, so if anyone is familiar with this unit (TCG523 or NTE523), how is it connected?

Terminals are:

IN - HV AC in?
G - ground?
F - what's this?
CTL - what's this?

One lead is fairly straightforward to identify -- the big red wire with a CRT anode connector on it. Think I know what to do with that one.

Tom

IN - HV AC in? Yes, from the flyback
G - ground? Yes
F - what's this? Focus Tap from the internal voltage divider.
CTL - what's this? Focus or Screen Control Tap from the internal Voltage Divider.

Datasheet archive has the datasheet fro the ECG triplers, IIRC - so you can see the divider network resistance values.

Cheers,