Why am I getting 51 volts drom the F5 power supply. I am building Mono blocks... Can anyone tell me what I am doing wrong?
Great....If that voltage is correct than I can go ahead and complete the amp. The 24 volts will show with a load? I did not want to connect to the amp PCB until I was sure the PSU was working. Thank You
it is +/-24V. so + to gnd +24V and - to gnd -24V. from + to - 48V with load. it may be a little lower.
Well, I am not sure where to start. I put every thing back and when I went to check the voltage I saw smoke...turned off...I put the bleeders on the reverse side and it touched the side wall of the enclosure. Since I am building mono blocks I have a spare set of parts. I replaced the resistor and now the voltage is in the 70-85 range. the amp board looks ok, however I understand the transiters could be blown. What is the chance that has happened? Everything looks ok...but I am sure I am missing something. I have been a Ham for a good number of years, and have built rf amps, however this is much harder. I am building this in a very small enclosure and its very hard to work with. I should have done it in a larger box. Things seemed to be going very well but its gone downhill....
The heat sinks are big enough...its that the design with the transformer leaves an area of about 5 inches round and 8 inches high. I have taken everything apart...I also need to learn how to upload photos..
okei.
to send photos: manage attachments and browse. when you find your photo, press upload and submit reply🙂
to send photos: manage attachments and browse. when you find your photo, press upload and submit reply🙂
6L6,
is that a pic of your mains terminal block?
!!!!!
How close are the tags?
Single insulation or much worse, no insulation !
is that a pic of your mains terminal block?
!!!!!
How close are the tags?
Single insulation or much worse, no insulation !