Precision Fidelity - C7 Mods...help Wanted! - diyAudio
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Old 18th December 2007, 10:50 AM   #1
brianco is offline brianco  Ireland
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Default Precision Fidelity - C7 Mods...help Wanted!

I have a Precision Fidelity C7 - in basic unmodified form. I want to bring it up to its highest spec. and would be grateful if anyone has a schematic to share for the 7A or REVISED model.

I will be using it with a Bent Audio MC Tx.(Silver) and a variety of power amps.

I will be very pleased to hear from anyone who has worked on this Pre.

Many thanks

Brian
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Old 18th December 2007, 11:36 AM   #2
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Hi
Schematic of the C7A-Revised can be found here:
http://www.ys-audio.com
Torben
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Old 18th December 2007, 01:49 PM   #3
brianco is offline brianco  Ireland
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Very many thanks Hermann. That is just what I wanted!

Anyone got experience of these pre-amps? I had the C9 many years ago and wish that I still owned it!! I can't even remember where it went to, but do remember that the power supply was always causing problems when using a voltage drop transformer which gave as little as 110vac. But it DID sound good with an old Moscode!

Brian
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Old 30th December 2007, 09:48 PM   #4
brianco is offline brianco  Ireland
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Default C7 (Revised)

Herrman kindly gave me a URL for a schematic for the C7 to C7A revision. I would very much like a copy of the C7 (Revised) schematic including it's power supply.

Can anyone help please?

Happy New Year

Brian
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Old 28th February 2008, 08:44 PM   #5
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Default Precision Fidelity C-7

The C-7A schematic on ysaudio is not accurate.

What do you need the schematic for?
I have all 3 schematics, and the mods.
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Old 28th February 2008, 09:15 PM   #6
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I must be blind...I don't see schematics anywhere
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Old 28th February 2008, 09:41 PM   #7
brianco is offline brianco  Ireland
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Default Thank You...

Pat,

Many thanks indeed: rather than post a full reply I have sent you an email and look forward to your response.

Good luck,

Brian
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Old 28th February 2008, 10:02 PM   #8
brianco is offline brianco  Ireland
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Quote:
Originally posted by burnedfingers
I must be blind...I don't see schematics anywhere

burnedfingers,


Hermann, in post 2, above gave an address which gives the (incorrect) info.

Regarding your (apt?) board name I could be called burned table, carpet, well...virtually everything!

Brian
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Old 26th March 2008, 07:16 PM   #9
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Default precision fidelity

hi im a new member and cant email people??? im looking for a schematic for precision fidelity m-8 power amp. also a parts amp?? you can email me at skinnysteve_1@netzero.com I have two amps one works and the other needs help!!!please contact me with any info. steve Ellis
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Old 30th May 2008, 12:39 PM   #10
mcelaj is offline mcelaj  United States
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hi,

patferrari, brianco & others, if any, that has these schematics, i could really use all three schematics. my email is my username at gmail period com.

thanks a bunch.
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