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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Wed Feb 19, 2014 3:27 pm
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Retroverbial wrote:
mhowell wrote:
The recap was done is a very non original way. They left the old cap can in place and installed individual caps underneath. I'll definitely need to see how that was done. I suppose it's OK - might even make future maintenance easier.


Doubtful......it's already pretty crowded in there with the bottom of the PT, the tag board for the bias circuit, and the power-rail resistors. That's why Leo chose a cap can in the first place.

Arjay

I thought it might be easier maintenance because it's can sometimes be a pain to get the old cap can off. At least that's what I've heard - never actually did it myself. I'll yield to your experience and expertise in that regard every time.

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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Wed Feb 19, 2014 3:27 pm
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Joined: Wed May 25, 2011 12:45 pm
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Retroverbial wrote:
mhowell wrote:
The recap was done is a very non original way. They left the old cap can in place and installed individual caps underneath. I'll definitely need to see how that was done. I suppose it's OK - might even make future maintenance easier.


Doubtful......it's already pretty crowded in there with the bottom of the PT, the tag board for the bias circuit, and the power-rail resistors. That's why Leo chose a cap can in the first place.

Arjay

I thought it might be easier maintenance because it's can sometimes be a pain to get the old cap can off. At least that's what I've heard - never actually did it myself. I'll yield to your experience and expertise in that regard every time.

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.


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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Wed Feb 19, 2014 6:11 pm
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mhowell wrote:
I thought it might be easier maintenance because it's can sometime be a pain to get the old cap can off. At least that's what I've heard - never actually did it myself. I'll yield to your experience and expertise in that regard every time.


It's not very tough at all w/ the right tools. There are 4 methods:

1. Get something stronger than a Hobbyist Soldering Iron or Station... or buy a 100W Soldering Iron - the old style Plumbers use (Not expensive). My Hakko will do it w/ a broad chisel tip and set at 800°.

2. Use a Dremel Tool to carefully cut away most of the solder, then flow the rest off.

3. Carefully use a Hammer & Chisel to break the solder joint.

4. If all else fails... Lose the Chisel !! :lol: :lol: :lol:

cheers!

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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Wed Feb 19, 2014 6:31 pm
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Lightnin MN wrote:
mhowell wrote:
I thought it might be easier maintenance because it's can sometime be a pain to get the old cap can off. At least that's what I've heard - never actually did it myself. I'll yield to your experience and expertise in that regard every time.


It's not very tough at all w/ the right tools. There are 4 methods:

1. Get something stronger than a Hobbyist Soldering Iron or Station... or buy a 100W Soldering Iron - the old style Plumbers use (Not expensive). My Hakko will do it w/ a broad chisel tip and set at 800°.

2. Use a Dremel Tool to carefully cut away most of the solder, then flow the rest off.

3. Carefully use a Hammer & Chisel to break the solder joint.

4. If all else fails... Lose the Chisel !! :lol: :lol: :lol:

cheers!


All of the above will get the old cap can out, but only number 1 will help getting the new cap can in... :lol: :lol: :lol:

:mrgreen:

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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Fri Feb 21, 2014 8:20 am
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Getting the old can off the chassis is fairly easy, if you have a Dremel or some such tool. Just grind down the solder mount and tab along the edge where chassis and can meet. Avoid over-grinding the chassis. Then, get a good sized solder iron and melt the solder and pull the can. Wick up the remaining solder, remove the remaining pieces of tab.

Clean off the chassis with a brass brush (or steel wool). Apply good flux where new solder will go. Clean and bend new can's tabs. Solder with good sized iron. I use a 100-watt Weller.


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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Fri Feb 21, 2014 12:20 pm
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BMW2002Ti wrote:
Apply good flux where new solder will go.


It's imperative that adequate paste flux should be applied. Clean excess off with spray tuner wash or De-Oxit after the chassis has sufficiently cooled. Same caveats when soldering a ground wire to a Strat's trem claw.

Arjay

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Post subject: Re: This 1964 Princeton Reverb looks too new to me
Posted: Sat Feb 22, 2014 1:25 am
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Good tips, cause I might have to do this soon.


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