I collect an old QRO transmitter with 6883 valve. Problem with power supply. I wound a new transformer having 500v 250ma, 250v 150ma, 6.3v 3A, 12.6v 5A. Now the power supply unit working fine. I connected relay to control the HV. For this relay seperate regulated 12v dc required. Can use the same volt line in the tx unit.
