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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sat Jan 25, 2014 10:41 pm
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rich2 wrote:
You know, I would not be surprised if some of those old orange drops are up there on the moon...


Probably why the live audio feed from our astronauts at Eagle Base to mission control in Houston sounded so spectacularly great......

:lol: :lol: :lol: :lol: :lol:

Arjay

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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sat Jan 25, 2014 11:53 pm
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aclempoppi wrote:
I would, just suggest that the older Spragues were great caps. The tone zone kind of dictates what a person might want to use, in their amp. Never found reliability to be an issue with orange drops. Too many PIO caps can veil the signal. So mixing caps, like tubes, is good with me. JMHO, Art..... Oh Yeah, Welcome to the forum Rich !!



Yeah Art, I have no issue with NOS Sprague OD's. It the recent SBE 715P and 716P OD series that have the more brittle tone. Though, I have not tried any of these SBE caps, since it was bought out by Cornell-Dubilier.


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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sun Jan 26, 2014 12:15 am
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Replicating the sound from the moon is a classic effect which can be the glue in your soundscape

Or, you could just call up the choir...

OK sorry, way off topic now...


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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sun Jan 26, 2014 12:37 am
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I am now reminded of why I was brought to this forum.

I just picked up a 1965 Princeton, and in the same estate was an old wooden cabinet loaded with 2 1967 Jensen Concert 12".

I am assuming the Jensens are 8 ohms each to make a 4 ohm cab, and of course will test them, but what in your experience can you get away with powering from a Princeton?

Am I naive in assuming that this cab was run off the EXT. SPKR. jack?


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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sun Jan 26, 2014 11:35 am
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" I am assuming the Jensens are 8 ohms each to make a 4 ohm cab. "

Bad assumption. Need to measure static DCR. Will not be exactly the impedace, but close.

" And of course will test them, but what in your experience can you get away with powering from a Princeton? "

No problem. For example, in hi-fi world I've heard a 2-watt flea powered SET amp drive big Klipsch La Scala's to concert level outputs.


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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sun Jan 26, 2014 10:44 pm
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BMW2002Ti wrote:
No problem. For example, in hi-fi world I've heard a 2-watt flea powered SET amp drive big Klipsch La Scala's to concert level outputs.


That's the audiophile realm, Steve.

Guitar amps are a whole 'nother story.

And every knows that the pathetic Princeton can *barely* drive its 10-inch speaker with any modicum of efficiency.

:lol:

Hell, the power supply is so pitiful it can barely keep the pilot lamp lit while playing the amp at even modest volume levels.

:wink:

Arjay

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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Thu Jan 30, 2014 2:01 pm
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Retroverbial wrote:
BMW2002Ti wrote:
No problem. For example, in hi-fi world I've heard a 2-watt flea powered SET amp drive big Klipsch La Scala's to concert level outputs.


That's the audiophile realm, Steve.

Guitar amps are a whole 'nother story.

And every knows that the pathetic Princeton can *barely* drive its 10-inch speaker with any modicum of efficiency.

:lol:

Hell, the power supply is so pitiful it can barely keep the pilot lamp lit while playing the amp at even modest volume levels.

:wink:

Arjay


Yup, that was the point. Use a wimpy amp and get it to distort pleasingly in a 5000 cu. ft. studio space.

This particular one seems to stay clean no matter if its just pushing the single upgraded (1967) Jensen in the combo, or with the 2X12 vintage (1967) Jensen Concert cab hooked up on the ext. jack. (so...clean down to 2.66 ohms...)

I guess I'll try it with a boost next...


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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Fri Jan 31, 2014 11:04 pm
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Just wondering if the input 12AX7 is tired? Also the PI would have a bearing on the on-set of distortion. Can't understand the lack of breakup past"5" on a Princeton, unless the PI is a 12AT7 and(or) 6L6's are in the power tube slots!!! I know that my Valco is very responsive to the first input tube. Blues Bonds Man(Chris) shot me a big stash of 6N7's (octal based twin triodes)and it is just amazing how different the amp reacts to them. Yeah, it's a different amp but just sayin'...... For my other Fenders the difference between Telefunken, Mullard, Valvo, and RCA's is also apparent. Just not to the same degree. JMHO, Art

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Post subject: Re: 1966 Fender Princeton Amp or Modded PTP Princeton Reverb
Posted: Sat Feb 01, 2014 12:08 am
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It has an RCA 7025 and a Mullard 12AX7.

The Power tubes look like original RCA.

I've decided I like it just like it is, sounds really good, and pedals drive it well.

Thanks!


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