2nd Princeton Reverb

[dcribbs1412]

Got around to building a second PR after trading
first one for some cabs. Nothing new just based on the Allen Sweet spot.
Did add a 4/8 ohm switch and 2.7K/5.4K NFB switch
Using Allen iron, OT is a 30W I believe. Spark test went good (used bulb limiter) threw in some tubes and it sounds decent out of the gates.
Will be rolling some tubes and get it in a cab. Eminence RWB speaker.
I really like this circuit/amp.
Darin

[M Fowler]

Nice work on your amp. Will look forward to final cab shots

[Reeltarded]

Wow!! Great work!

[telentubes]

Nice build. I really like this circuit/amp as well. Definitely a keeper. You've got some nice components on that board.

[telentubes]

Any chance of a voltage chart? I'd like to see how your voltages compare to mine.

[dcribbs1412]

Thanks guys

Nice work on your amp. Will look forward to final cab shots

Wow!! Great work!

Any chance of a voltage chart? I'd like to see how your voltages compare to mine.

Here's some voltages, still may roll some other 12ax7's
I'm using Bendix 5992 6V6's and a Bendix 6106 rec
V1 pin 1. 205, pin 2. 206
V2 pin 1. 291, pin 2. 391
V3 pin 1. 196, pin 6 199
V4 pin 6. 239, pin 8 83
390V on pin 3 of both 6V6's
bias set around 20-21 ma -34 on both
B+ 334 296 296
will get her in some clothes and post pics asap

Darin

[cbass]

Nice build. I really like this circuit/amp as well. Definitely a keeper. You've got some nice components on that board.

Ditto

[overtone]

Thanks for taking the time to post this work and the voltages too.
I can hear how good this sounds already!

Recently I heard a PR with Allen iron at Telecaster jam session.
It was in a room full with about fifteen guys all twanging and Keifing away.
In the din I heard something that made me think "now, that is one of the best sounding amps that I've heard in a real long time."
It was a Tele and a lap steel straight into an 80s BFPR with a 5u4 + pre CBS values.
One of these is on my list for this year.

Best, tony

[dcribbs1412]

It was a Tele and a lap steel straight into an 80s BFPR with a 5u4 + pre CBS values.
One of these is on my list for this year.

Best, tony

I've seen the prices go way up on these.
I played a 65ish PR a few years ago. It was nice, but I could
not justify the 1800.00-2000.00 at the time.
I see some going for over 2500.00 now.
Would be great to hear both side by side and compare.
If building one I would recommend Allen Amps for parts or kit.

overtone...impressive work on your website



Got her in the cab with the reverb tank.

[telentubes]

WOW!!! That is gorgeous. Great color combos.
My voltages are way different. I'll look into that.

[dcribbs1412]

WOW!!! That is gorgeous. Great color combos.
My voltages are way different. I'll look into that.

Thanks telentubes
the PT I used was 310V 0 310V 150ma Allen Amps TP25
not sure what voltages you started with.
Looking at your post you used the Weber W025130 PT?
I think it might have taps for 680V and 540V
if using the 540V tap would explain lower voltages.


Darin

[statorvane]

Mighty fine looking amp. Really first class.

BTW, what is the purpose of the chassis straps on Fender amps? They do not appear to have any obvious structural function.

[snuffy]

Great job all around! I'd keep that one.

[Colossal]

Niiiiicccceeeee!

Enjoy your killer tone.

[Bob S]

That's stunning - looks killer.
I've rebuilt a couple of nasty butchered PR's for friends & both times hated having to give them back.
Seeing your beautiful build just reminded me.
Gotta have one.
The sickness continues.
And you're not helping !

Well Done