VTVM EICO 232 LM317 BATTERY CHANGE - Printable Version
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+--- Thread: VTVM EICO 232 LM317 BATTERY CHANGE (/showthread.php?tid=15951)
VTVM EICO 232 LM317 BATTERY CHANGE - Bradley Rush - 12-23-2016
Did this a while ago. Transformer fused in out. Very stable ohms.
RE: VTVM EICO 232 LM317 BATTERY CHANGE - Bradley Rush - 12-23-2016
More of the LM317 battery replacement
RE: VTVM EICO 232 LM317 BATTERY CHANGE - Bradley Rush - 12-23-2016
More Eico 232 LM317 REPLACEMENT
RE: VTVM EICO 232 LM317 BATTERY CHANGE - Arran - 04-02-2017
I have a slightly older Eico where the previous owner rigged up a substitute for the battery by tapping off the filament winding of the transformer, all he used was some diodes, a resistor, and some large value, low voltage, electrolytics. It worked fine for me until I blew out one of the resistors on the Ohm meter section after I accidentally used to to measure some high voltage.
Regards
Arran