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Eico 232 VTVM Schematic
#1

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.

   
   
#2

Is that a battery holder?

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#3

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

Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
#4

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.




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