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Old December 22nd 05, 03:59 AM posted to alt.binaries.schematics.electronic,rec.antiques.radio+phono,rec.radio.amateur.antenna,rec.radio.amateur.homebrew
gb
 
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Default Still looking for a Tripp Lite PR-25 (or similar) DC power supply schematic

"Paul P" wrote in
message ...
There are a couple of smoked resistors on the regulator board. I can not
trust the ohm meter reading so I wanted to verify its value. I am trying
to avoid De-engineering the board. Now once the resistors are replace
there may be something else that smoked the resistors too.

Paul.


Paul -

Where are these resistors .. the typical linear supply has low ohm
equalizing resistors across the NPN pass transistors .. and only a few in
the regulation circuit off the LM723 pins .. for example a 1 K is usually
used from pin 4 to the voltage adjustment potentiometer.

gb