Astron Power Supply problem

[Sonwatcher]

I have an Astron 20a ps that has worked flawlessly. Tonight I hooked up a mobile radio and after a little bit the radio was off. The light was still on on the power supply. I pulled the fuse and it was ok. Put it back in and it worked ok for a little bit then did the same thing. The light comes on. When I try to power something up the radio will come on briefly then go out like the power was shut off. It will do this same thing everytime now with anything I hook up to it . Anyone had any experience with this or some knowledge of what the problem may be ?

Thanks

 

[Sonwatcher]

I put a volt meter on the 2 posts and it reads correct voltage present. But as soon as I turn on anything attached to the posts the voltage cuts off and goes to 0 . As soon as I turn OFF the radio or whatever is attached the voltage rises back to where it should be.

 

[lords]

see that silver transistor in the back
thats the same problem i had I think i got a replacement from radio shack for it

I think the stock was a 2N3771 or 2n3772 and i replaced it with a
2n5301 or a 2n5302 or that cap(dryied out) is leaking....
sorry it been 1 year

 

[Sonwatcher]

Someone told me the regulator goes bad in these. I took the case off and lifted the board to check locations, blew out the dust inside and put the board back on. I connected my tuner then switched on the power supply and now it is working ! Don't know what the problem was.

 

[74IN]

Whiskers.

 

[lords]

hm sounds like a cold solder...