Power supply grounding

[harrybissell at prodigy.net]

In my case the "issue" was resolved when I got rid of
all gear that had leakage current in the chassis... namely and old Traynor tube amp. I have not gotten a shock since.

I also use a single point power distribution. If you plug into two outlets there can be a ground differential between them, or worse... a phase reversal. This can make two units have a large potential across them !!!

I own (but seldom use) Fender tube guitar amps and I always run in the chassis floating position. There are no shocks.

:^) Harry


 ---- On Jan  5 Doug Tymofichuk <dougt at cancerboard.ab.ca> wrote: 
> Thank you to everyone who responded to my tube power supply 
> grounding questions.
> 
> Unfortunately, there did not seem to be any concensus as to 
> the correct way of doing this. Two people advised 
> connecting the signal ground directly to the chassis 
> ground, two advised connecting them through a 0.05uF 
> capacitor, one advised connecting through a low ohm 
> resistance, and two advised not connecting them at all. A 
> number of people advised me to experiment and see what 
> works the best for noise performance.
> 
> I had thought that this would be a controversial subject, 
> but this looks like complete disagreement! Should there not 
> be a "correct" way of doing this?
> 
> I have complete control over the equipment I am using, so I 
> can ground them any way that I care to. So I would like to 
> apply the same rules and techniques to all my equipment. 
> For example, I have a Garnet tube amplifier and a Gibson 
> solid state amplifier, and if you touch the grounds of both 
> at once, you get a real bite! I need to wire all equipment 
> the same way, but which is the best/correct way of doing 
> this? Or is this one of those issues that never really gets 
> properly resolved?
> 
> ----------------------
> Doug Tymofichuk
> dougt at cancerboard.ab.ca
>