I have a Conar power supply, Model 320. It uses only a few compnents: full wave bridge, transformer, a few capacitors, and a 4 terminal IC (UA 78HG), T05. Package. Pos. Voltage regulator.
I’m having a difficult time finding the UA 78HG. ( four terminal, variable, pos voltage regulator)
I would like to duplicate this power supply circuit because the design simplicity.
What is available in IC’s that I use in place of the UA 78 HG?
Bigger current capacity > 5 A is ok.but I want it to be variable 5 to 14 VDC. And use the same/or close design (few components).
Also what transformer secondary voltage should I use (min and max)? I can measure the existing supply transformer I have, but I am courious what range would work, as I have several transformers in my ‘junk box’.
Your suggestions please.
Thank you
I’m having a difficult time finding the UA 78HG. ( four terminal, variable, pos voltage regulator)
I would like to duplicate this power supply circuit because the design simplicity.
What is available in IC’s that I use in place of the UA 78 HG?
Bigger current capacity > 5 A is ok.but I want it to be variable 5 to 14 VDC. And use the same/or close design (few components).
Also what transformer secondary voltage should I use (min and max)? I can measure the existing supply transformer I have, but I am courious what range would work, as I have several transformers in my ‘junk box’.
Your suggestions please.
Thank you