Re: 6SN7 amp trouble?

From: "Phil S." <psymonds@xxxxxxxxxxx>
Date: Mon, 2 Feb 2009 21:25:03 -0500

"Doggone" <Running@xxxxxxxxxxx> wrote in message
news:Xns9BA6CEF6C5246Runningparkedcars@xxxxxxxxxxxxxxxxx

Looking at the pics you posted earlier, it looks like you connected C6
(coupling cap from second stage to PI) to the wrong side of the plate
resistor R12.

--
If it's not broken, fix it till it is.

Great catch. I willing to say, this was a bonehead thing to do. I would
have got it eventually, but it would have been 3 days and six times going
over the amp. Just one of those things.

I now get a hum when I touch the cord and all seems to be operational.

Thanks!

.

Follow-Ups:
- Re: 6SN7 amp trouble?
  - From: JP

References:
- 6SN7 amp trouble?
  - From: Phil S.
- Re: 6SN7 amp trouble?
  - From: Doggone

Prev by Date: Re: Video - Romeo Rose helps guitarists become Pros!
Next by Date: Re: Video - Romeo Rose helps guitarists become Pros!
Previous by thread: Re: 6SN7 amp trouble?
Next by thread: Re: 6SN7 amp trouble?
Index(es):
- Date
- Thread

Relevant Pages

Re: help needed with blues deluxe reissue mod. motor boating problem??
... at the plate of the 3rd stage feeds back to the grid of the ... second stage via the plate resistor of the first stage. ...
(alt.guitar.amps)
Re: help needed with blues deluxe reissue mod. motor boating problem??
... second stage via the plate resistor of the first stage. ... fix it till it is.- Masquer le texte des messages ...
(alt.guitar.amps)
Re: help needed with blues deluxe reissue mod. motor boating problem??
... I have the drive channel with more gain, good, BUT ... second stage via the plate resistor of the first stage. ...
(alt.guitar.amps)
Re: ~14W Class A Orange Thing
... The only thing is that the "design max" plate voltage is 275V. ... That's a good sounding amp, too, not like that ice pick GA20-RVT with 6BQ5's, which also runs about the same voltage. ... It's basically a variable coupling cap. ... There used to be a good page on teh FAC, but I can't seem to find ...
(alt.guitar.amps)
Re: 6SN7 amp trouble?
... (coupling cap from second stage to PI) ... this was a bonehead thing to do. ... Hey Phil! ...
(alt.guitar.amps)