[RodB]

A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later version because it has solid state diodes to replace the 6AL5 duo diode tube. I would say maybe early 60s. All my searches have resulted in the schematic for a 12AU7 and 6AL5 configuration. This one has only a 6FQ7/6CG7 replacing the 12AU7. Any help is appreciated.

   
   

[morzh]

Is that a battery holder?

[Chas]

Try BAMA for a schematic.

Looks like a replacement power source for the D battery has been installed. The tube may be a sub for the 12AU7. As long as it balances and is stable should be fine. 

Was the Uniprobe provided?

Chas

[RodB]

It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is there. BAMA has the older schematic. I haven't looked up the tube yet, it has two sections but it's a 6 volt tube. I guess I'll wing it for now.