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Topic: Fender Amp , Help ! |
Bob Hickish
From:
Port Ludlow, Washington, USA, R.I.P.
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Posted 2 Aug 2004 9:00 am |
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Need Help ! I have a Fender Princton Reverb
Amp That I have used sense 1962 - it needs a
little help after all the years of service and I have
been unable to find the schmatic - The Fender co.
does NOT list this particuler one - Maybe some
one out there in Fourm land can help - Here are
the Numbers .
AA764 Production #2
Manufacture date 1961 or 62
Thanks in advance for any help
Bob
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Alan Kirk
From:
Scotia, CA, USA
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Bob Hickish
From:
Port Ludlow, Washington, USA, R.I.P.
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Posted 2 Aug 2004 11:23 am
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Thanks Allen !
This might get it ! I still did not see this one listed under Princton - but the tag in the amp may be wrong - Thanks Again-
Bob |
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Jon Light
From:
Saugerties, NY
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Posted 2 Aug 2004 11:57 am
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http://www1.korksoft.com/~schem/fenderheaven.htm
If you pull the chassis and spend some time comparing what you see with some of the schematics and (my preference) layouts, you may find everything you need to know, regardless of whether you can find that 964 or not. I'm seeing 764, 864, 1164 in various models (doesn't necessarily have to be Princeton to provide useful info) and you might be able to extrapolate info from the combined study of these materials.
----I just realized that this is the same as Alan's second link.[This message was edited by Jon Light on 02 August 2004 at 12:58 PM.] |
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Bob Hickish
From:
Port Ludlow, Washington, USA, R.I.P.
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Posted 2 Aug 2004 12:25 pm
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Alan - sorry I spel'd your name wrong !
The lay out of my amp matches the lay out of
the 1164 Princeton !!! So I think the tag in the
amp was wrong - it matches tube for tube and
knob for knob - Thanks for the help !!!
Also Jon !! Yes thats what I discovered !! Thanks Guys I think I'm home free now -all I need now is a pile of parts - this has been a grate amp and matches my Fender String Master -Real clean sound and hope I can restor it - Thanks Again
Bob |
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Jon Light
From:
Saugerties, NY
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Posted 2 Aug 2004 12:58 pm
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| I'm out of my league on this subject but......the chart might well be correct---sometimes the changes may not be right up front. Layout & all might be relatively unchanged from one numerical designation to the another. The change could be in a couple of resistor values, in the function of the bias adjust pot (from adjust to balance, for instance)---in other words you may need to pay close attention to find the changes and they may not relevant to what you are doing anyway. For sure, though, if the amp has sounded great and worked well, if you are replacing components, trust the values that you see in the amp before trusting what a schematic (that might not be the right one) tells you. Nothing worse than "fixing" an amp and having it not sound as good as before you messed with it. |
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Bob Metzger
From:
Waltham (Boston), MA, USA
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Posted 4 Aug 2004 7:18 pm
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Mount a 3-prong power cord, change out all the electrolytic caps and change out any resistor that measure 10%~12% out of value. I like to add grid stoppers and screen grid resistors to the power tubes like the 'big brother' Fender amps have. If you only open it up every forty years or so, you probably don't need a bias pot but I like to add one to most Princeton Reverbs I see. Do the 'Stokes Mod' to the power supply, add a premium 10" speaker and you'll have yourself a nice little amp.
Bob M. |
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Bob Hickish
From:
Port Ludlow, Washington, USA, R.I.P.
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Posted 5 Aug 2004 6:15 am
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"Mount a 3-prong power cord"
Good idea and thank for the info Bob ! Im not a sparky { electronics type } but I will take your advice and do the best i can with it - its to good an Amp to let it go . If I can get another 40 years out of it !!! ???
{I will be lucky if I can get another 10 out of me}
Bob |
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