You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
What high voltage should I see running an SB-201 on 120VAC, I’m seeing 2100VDC on the SB-201 meter and 2300VDC on a bench meter.
I know the bench meter is correct at 2300VDC.
The original 572 had a maximum plate voltage of 2500V. Since the clone Chinese tubes are at least thought to be not as good as their American predecessors it would be unwise to try and push them or “hotrod” the amplifier. My SB-200 runs at about 2200-2300V unloaded and drops to somewhere around 2100V loaded.
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.