Bottlehead Forum

General Category => General Discussion => Topic started by: vetmed on February 15, 2012, 09:43:21 AM

Title: Led Bias
Post by: vetmed on February 15, 2012, 09:43:21 AM

I don't have any manuals handy, so I'm asking here. When you use an led to bias a tube which end (cathode or anode) gets connected to the tube's cathode? Or put another way what gets connected to Ground? Thanks


Robert Lees

Title: Re: Led Bias
Post by: Laudanum on February 15, 2012, 09:58:40 AM

Im assuming, like a diode, that the cathode is the silver striped end of the HLMP6000's Bottlehead uses.   Assuming that, the striped cathode side is connected to ground.

Title: Re: Led Bias
Post by: Grainger49 on February 15, 2012, 10:25:29 AM

I'm agreeing with Desmond.  The banded end, in the case of an HLMP-6000 the silver end, goes to ground.