Amp dropped by Fedex with weird doubling octavia noise

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louiss
Posts: 8
Joined: Fri Jan 10, 2014 2:09 pm
Location: Canada

Re: Amp dropped by Fedex with weird doubling octavia noise

Post by louiss »

Leo_Gnardo wrote:
louiss wrote:pin 6
reads 330 so he thonks somethings wring
in that area.
open filament would do that. that's what I thonk.
Ooops!!!!

He thonks something's wring !!!

Better with he think's something's wrong !
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Leo_Gnardo
Posts: 2585
Joined: Thu Sep 27, 2012 1:33 pm
Location: Dogpatch-on-Hudson

Re: Amp dropped by Fedex with weird doubling octavia noise

Post by Leo_Gnardo »

louiss wrote:
Leo_Gnardo wrote:
louiss wrote:pin 6
reads 330 so he thonks somethings wring
in that area.
open filament would do that. that's what I thonk.
Ooops!!!!

He thonks something's wring !!!

Better with he think's something's wrong !
So . . . have we had a look at that phase inverter tube in the dark yet, see if both filaments are lit?

Drop an amp, bust a filament, who'd a thunk it? Or perhaps a broken solder connexion to pin 4 or 5?
down technical blind alleys . . .
louiss
Posts: 8
Joined: Fri Jan 10, 2014 2:09 pm
Location: Canada

Re: Amp dropped by Fedex with weird doubling octavia noise

Post by louiss »

Leo_Gnardo wrote:
louiss wrote:
Leo_Gnardo wrote: open filament would do that. that's what I thonk.
Ooops!!!!

He thonks something's wring !!!

Better with he think's something's wrong !
So . . . have we had a look at that phase inverter tube in the dark yet, see if both filaments are lit?

Drop an amp, bust a filament, who'd a thunk it? Or perhaps a broken solder connexion to pin 4 or 5?
Took the amp to PWE Amplification so it's at the
right place and Ted will check it tonight or
tomorrow at the latest .

I will post as soon as I know.

Louis
louiss
Posts: 8
Joined: Fri Jan 10, 2014 2:09 pm
Location: Canada

Re: Amp dropped by Fedex with weird doubling octavia noise

Post by louiss »

Amp is fixed !!

You guy's are amazing !

Phase inverter tube was dead !

One of the input leg or spring wasn't closing
and caused a bad ground or something!
Japanee to me but you guy's know what I mean.

A few bad cold solder

With the green ground that was unconnected,
that was enough to make the amp sound
like crap !

Ted from PWE Amps told me that the amp now
sounds like on Sam Vilo's demo .

Thank's again for your support !

Really appreciate !


Louis
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martin manning
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Location: 39°06' N 84°30' W

Re: Amp dropped by Fedex with weird doubling octavia noise

Post by martin manning »

Good to hear, and it sounds like you have found yourself a good tech there. Probably the screen ground, and a bad input jack switching contact.
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