My photoreport about creation and installation of CCS-MOD board for SRM-600. The board has an original design to use the existing mounts on the main (mother) amplifier board. I would like to once again say my most heartfelt thanks to Dr. Kevin Gilmore, Mr. J. Lin, Mr. Mjölnir aka spritzer and...

Hi all, I've created this thread to discuss tube bias when using constant current sink (CCS) cathode coupled OTL amps. Here is the basic diagram for a CCS OTL: Note that in the CCS OTL design there are no cathode resistors to set cathode bias. Instead, a specific current is chosen for the...