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Precision fidelity c-9 preamp tubes????
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Author:  ARMED [ 26 Feb 2018, 10:50 ]
Post subject:  Precision fidelity c-9 preamp tubes????

Hi, newbie here, i was hoping you guys could
Help me out..
i just acquired a modded C-9 preamp, from 12 tubes to now 8
Modded to 8 to make it more simple they said.. anywho..
I am trying to figure out which tubes are for the inputs and phonos..
It has 4 12ax7s and 4 12au7s.... the ones with the red caps next to it are the au7s..

Pls help

**im Just trying to figure out how to post a smaller file for pictures

Author:  ARMED [ 26 Feb 2018, 15:11 ]
Post subject:  Re: Precision fidelity c-9 preamp tubes????

here

Author:  ARMED [ 26 Feb 2018, 15:13 ]
Post subject:  Re: Precision fidelity c-9 preamp tubes????

one more

Author:  Geek [ 26 Feb 2018, 16:06 ]
Post subject:  Re: Precision fidelity c-9 preamp tubes????

Hi,

Without a mod schematic (which I searched heavily for), you can try the old method of "tapping" gently the tubes and hearing in an amp which is doing what.

Cheers!

Author:  ARMED [ 26 Feb 2018, 17:06 ]
Post subject:  Re: Precision fidelity c-9 preamp tubes????

so put it on phono, then tap the tubes gently and see which one makes any sound/noise?

Author:  Geek [ 27 Feb 2018, 01:04 ]
Post subject:  Re: Precision fidelity c-9 preamp tubes????

Yep! It'll go "ping, ping" as you do.

Author:  ARMED [ 18 Apr 2018, 17:08 ]
Post subject:  Re: Precision fidelity c-9 preamp tubes????

does anyone have the schematics for the C9...im having some issues with it

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