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power supply
9/12/1999 8:41:14 PMRalph Schneider
I have several old Farm radios that take a 90volt/1.5 volt battery. does any one have a good circuit to make a battery eliminator.
9/13/1999 12:19:50 PMNorm Leal
Hi Ralph

I'll send you information on a power supply. It will be more than you need as it was made to also power 5 volt DC tubes.

Norm


: I have several old Farm radios that take a 90volt/1.5 volt battery. does any one have a good circuit to make a battery eliminator.

9/14/1999 12:39:42 AMJohn McPherson
: I have several old Farm radios that take a 90volt/1.5 volt battery. does any one have a good circuit to make a battery eliminator.

Here are some links to sites that have the circuit plans for the very supplies you are seeking.


http://antiqueradio.org/bsupply.htm

Phils site above has a number of different schemes that do work.

http://antiqueradios.com/chrs/journal/bsupply.html
http://antiqueradios.com/chrs/journal/asupply.html
With the correct selection of Zener diodes for the regulated supply, 1.5 volts is possible, also using other such variable regulators as an LM350, or uA350 voltage regulator.

11/11/1999 11:58:10 PMjack smith
: I have several old Farm radios that take a 90volt/1.5 volt battery. does any one have a good circuit to make a battery eliminator.

in Antique Electronic Supply 2000 catalog pg.33
MODEL K-101A $52.95



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