Schematics and PCB of the T-REG tube voltage regulator from Linear audio.   HV rectifier and CRC filtering not included. Perhaps I will modify the PCB? 10µF + TO220 resistor + 47µF (EPCOS MKP DC LINK capacitors).        

I´m working on tube test equipement for everybody who like to build audio amps and hate the smell of solder!   I will start with the standard socket boards. Following CCS board. Working on a simple universal high voltage supply and an universal heather voltage supply.    

I am starting the schematics with the 1AD4: +60VDC with 1mA CCS (LT3092) for 2Vpp/32Vpp.   More coming soon...   Any suggestions or comments?  

I know the very good thread "D3a gyrator loaded parafeed design" from 2010.   I have some C3g and I never built a CCS parafeed design.   The amplifier is powered by an external LiFePO4 Pack (for example, Ansmann PCS 5044273,+19VDC, +5VDC and 6600mAh with dedicated external charger and...