Print Page - What effect does tube supply (high) voltage have?

Title: What effect does tube supply (high) voltage have?
Post by: Frankgb on August 08, 2004, 06:02:26 AM

Hi,

I'm rebuilding a Matchless Hotbox, but this time I was thinking of using a DC supply from a DIY Valve Mic Preamp. The Valve Power Supply gives 245v while the older Hotbox one gives 290?

Would there really be any sound difference???

cheers

Frank

Title: What effect does tube supply (high) voltage have?
Post by: Mike Burgundy on August 08, 2004, 08:13:40 AM

not really, at those levels. It does make quite a difference when either the voltage is different enough or you run the tubes low. Below 100VDC things really start to change, because the tube starts operating in a progressively non-linear region, and dynamics and headroom also suffer.

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: Frankgb on August 08, 2004, 06:02:26 AM