Bad 7912's

[Kevin Weddle]

I have heard comments of 7912's not functioning properly and I am the next victim. What is going on with these bad parts. I didn't ask, but I think the person I talked to got their parts from another distributor. Has anybody experienced bad regulators before. Although the likelihood of getting bad parts is low, I am certain of it. I realize also that some regulators don;t use ground and that some regulators have minimum current requirements.

 

[steven2]

the 7912 regulator, ct -12 volts current 1 amp case type to 220 . fixed voltage regulator

 

[ante1]

Kevin,
I have never got any faulty regulators, but I have encountered some people that have. What it always has come down to is they aren

 

[steven2]

yeh ante it sounds like that

 

[Kevin Weddle]

There are only a few combinations to try with a 3 terminal regulator. I tried them all with a variable negative regulator. The only good aspect to any of the combinations was the power supply voltage at the output. This won't work.

 

[ante1]

Kevin,

This type of regulator is very rugged and not easy to destroy but if it

 

[MP1]

Kevin, here is the pin out in case you do not have it.

MP

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