yes they are very effective--i had to make a very simple, quick slow start when i first fired up a pole pig transformer into a new power supply for my 2x813 amp, it would trip the 20 amp breaker (120
I haven't tried the idea yet - just relaying what was in the old ARRL Handbook. I did grab a 60W lamp in the shop just now and found the cold resistance was around 20 ohms. The hot resistance should
Dear: cam wa4jrw, i have an amp (ampsupply lk-500) that was blowing the caps and the string of diodes, at start up. just the same problem you have, the inrush current was too much at times for the ca
A simple solution for inrush limiting was shown in a project amplifier in the 65' ARRL handbook. It was simply a 60W standard light bulb placed in series with the primary (I imagine two in series wou