i replace my stock Peter dahl plate hv- transformer on my lk-500-zc with a unit from an ameritron al-1500 transformer it works very well until i stored the power supply and amp away for a few months.
On the comments of K1UM yaesu ft 1000 is not the best radio out here (wake up) i'm not a serious contester like you said you are!!. but i will be out here doing my best with my icom 746 qrp most of t
RANDY KD4JZY, a good source of filter caps is RF parts and Peter dahl. check out Rf parts first they have great prices at times on many items. Good luck. Pete WO2E.
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
i have an AMP SUPPLY LK-500zc, i want to replace the Peter dahl original transformer with one salvage from an ameritron AL-1500. also a Peter dahl unit. i have try to get the online manual schematic
VA3NR, I had the same problem on a yearly basis on my lk-500. The fuse will go on start up. Remove the tubes from the amp and turn on the amp. If the fuses don't blow then you might have a bad tube,