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Here's a BF Princeton Reverb clone with a twist.
The preamp is straight-up PR, but the power transformer is for
-Deluxe 65 Reverb RI
-Deluxe 68 Reverb RI
-Fender 30
-Model 30
-Tremolux
-Vibrolux
-Vibrolux Reverb
Transformer info can be found here:
https://www.hammfg.com/electronics/transformers/classic/290
Uses 2 x EL34 glass and runs @450 plate voltage. It puts out @35 watts through a highly efficient 12" Celestion Vintage 30.
Orange drops, cloth wire, all Hammond iron (so most likely Canadian-made), quality glass, and so forth. I'm trying to figure out who made it, but I had my tech (the estimable John Fletcher, here in Toronto) go through it to make sure there are no surprises, and there are ... no surprises. The "ground" switch is a standby switch.
Then I took it out to a couple of gigs and...yup, it does exactly what one would think - bags of headroom, in a Princeton-sized package. With a Princeton voice. Through a 12" speaker with an SPL of 100 dB. And as much reverb and trem as one could ever want. Kind of a jazz player's dream compact tube amp.
I got this as part of a trade deal, don't have much use for it, and it occurred to me that many of you would have plenty of use for it, given the Princeton Reverb love in this community. It's a really nice amp, in perfect condition. It's also easy to ship given its Princeton size. Obviously, heavier than a stock PR - I'll add weight info shortly. And post some better pix.
So buy it! $1,200 + shipping.Last edited by Hammertone; 11-13-2019 at 04:59 PM.
"Somebody get me out of this chair." - BOB WILLS
Hammertone is a registered Hofnerologist.
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11-11-2019 05:19 AM
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what output transformer?
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When I had my retail store back in the 70's/80's, we built something similar - stuffed a Twin in a PR box! Got the idea from a steel player/amp guru named Red Rhodes from CA. Had to put the filter cap can down on the side of the cabinet to make room for everything. Transformer was from an Ampeg V4. also added a muffin fan and an EV 12" speaker. Cute little amp and really loud. I loaned it to someone and never got it back - wish I could find it but, then I probably couldn't lift it anyway. If anybody sees a little overweight PR that says "Sugar Daddy Blues Band" on the side - it's mine!
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See pix for transformer info.
I updated the top post, with a link to the Hammond page that lists transformers and associated Fender amps, and listed the relevant amps.
Glass includes (in order):
-5AR4 GE NOS rectifier tube
-2x 6CA7EH (similar to EL34) matched tubes (marked "69") from The Tube Store
-12ax7EH
-12ax7 - RCA NOS
-12at7 - Delmonico - made in Japan NOS
-12ax7EHLast edited by Hammertone; 11-11-2019 at 10:03 PM.
"Somebody get me out of this chair." - BOB WILLS
Hammertone is a registered Hofnerologist.
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That's the Hoffman PR board and it has a 35W output transformer. You can bias for 6L6s, EL34s or 6V6s. I built two (with Weber iron), still own one and will be playing it tonight weather permitting.
It is an ideal jazz machine -- toneful, easy grab, loud enough to gig and low visual volume for those situations where someone wants you to turn down before you plug it into the wall.
GLWS"Don't worry about that. Everybody talks about finding your voice. Do your homework and your voice will find you." - Branford Marsalis
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"Somebody get me out of this chair." - BOB WILLS
Hammertone is a registered Hofnerologist.
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did you ever look into converting to a long-tail PI? Seems like you could get even more volume out of it.
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Last edited by Hammertone; 11-13-2019 at 03:29 PM.
"Somebody get me out of this chair." - BOB WILLS
Hammertone is a registered Hofnerologist.
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Jazz, Funk, Soul & Boogaloo: My group | Listen to Hip Jazz a Go Go! | Jazz, Soul, Blues: Eva La Voix
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Looking at the pix, I think that's the only multicap can, next to the mains tranny. The hole for the usual cap can is covered by a transformer or choke now.
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Last edited by Hammertone; 11-13-2019 at 08:44 PM.
"Somebody get me out of this chair." - BOB WILLS
Hammertone is a registered Hofnerologist.
My Vintage Fender Amp Stinks
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