Mocom 70 power suplies

Sodbuster · Post by **Sodbuster** » Mon Apr 08, 2002 3:10 am

I have set two mocom 70 power suplies in paralell (I can't spell) I'm tring to use them to power a linear amp. Problem is when the amp is modulated it draws current to fast for the supplies and the crow bar shuts them down. I'm asking fo some help in modifing the crow bar curcuit . So far in my ever growing knowlage of electronics I can't figure this one out . Thanks for any help Allan

Will · Post by **Will** » Mon Apr 08, 2002 11:24 pm

The BBA power supplies are a slow regulator and should not be parralled. They are not very forgiving and WILL blow the series regulator transistor(s) and turn the transistor(s)into short circuits and dump 20 to 30 volts on your radio.

Sodbuster · Post by **Sodbuster** » Tue Apr 09, 2002 4:02 am

Ok great thanks I know now to forget the project and move on. I'll use them seperate instead and buy a new 30 amp supply . Thanks again . Allan