Build recommendations for this Power Transformer

[goldstache]

I've got a new in box NOS Chicago Transformer PT


Here are the specs:


350-0-350 120MA


5V 3A


6.3V CT  4.5A


I would like to make a brownface voiced amp and would really like to add reverb.  Trem isn't a necessity.


Anybody got ANY suggestions?  I am open to everyone's input.  Would like clean over mean, although a little in-between sounds cool too!


I kind of would like to end up with a brownface princeton with verb!


Thanks

[DummyLoad]

dilemma: brownface amps didn't have reverb...


princeton reverb with P-P 7591 cathode biased.  with your PT, B+ should be around 450V with SS; w/ GZ34 about 10V less.


delete bias supply and tremelo ckts.



idle @ ~40mA/7591; load ~8-9K @ ~25W.  <-- likely a custom wind or one of the hammond one_size_fits_all...


that's the only thing i can think of other than a SE plan with a big bottle or possibly P-P 5881's into 6-7k load.



http://frank.pocnet.net/sheets/127/7/7591.pdf


--pete

[thermion]

Insert reverb a' la 6g16 vibroverb?

[goldstache]

Thanks for the recommendations!  I have this amp that a guy built me back in the mid 2000's.  I would like to build something similar and add verb to it.
Can anyone distinguish the markings on the transformers that are on the amp?
I searched them on the net and found nothing.  Do they look familiar?????

[goldstache]

and here is the PT

[DummyLoad]

they look like custom wound PT & OT by hyboer transformers. call heyboer and give them the part numbers and they should be able to provide the specs.

they were manufactured 2006, 43 week.



--pete

[eleventeen]

Ooh, ooh, ooh, please let us know if indeed those are Heyboers, because I have a NOS "JTM-45" PT whose label looks exactly the same (except for the different numbers, obviously)

[Willabe]

Ooh, ooh, ooh, please let us know if indeed those are Heyboers, because I have a NOS "JTM-45" PT whose label looks exactly the same (except for the different numbers, obviously)

I don't understand.

If 1 of the #'s starts with 996 it's a Hyboer.


                  Brad   

Edit: Corrected spelling of Hyboer. Brad

[eleventeen]

The obvious label similarity. I didn't know about the EIA/mfr number. Sorry.

[Willabe]

Nothing to be sorry about.   

I just wasn't sure what you wanted to know. I only knew 996 was Hyboer because of Pete's post.


            Brad     

[goldstache]

I fired off an email and am awaiting a response!  Thanks! I will keep ya posted.

[goldstache]

They are indeed Heyboer.  And they sent the specs in their gracious reply.
I was surprised to see that the PT was 190v-0-190v @400ma!!!!!  Wow that's a lot of current for a two stage pre, LTPI, power section PP 30watter?!

Also no bias tap.   

I thought the secondaries were gonna be a lot higher.  I wasn't going to take measurements unless I didn't hear back from Heyboer. 

Thanks guys!

[DummyLoad]

They are indeed Heyboer.  And they sent the specs in their gracious reply.
I was surprised to see that the PT was 190v-0-190v @400ma!!!!!  Wow that's a lot of current for a two stage pre, LTPI, power section PP 30watter?!

Also no bias tap.   

I thought the secondaries were gonna be a lot higher.  I wasn't going to take measurements unless I didn't hear back from Heyboer. 

Thanks guys!

what is the OT?


--pete

[goldstache]

As I suspected 3.3k primary

[goldstache]

I want to make an ampeg SB-12 with the transformer mentioned in the first post
350-0-350 @120ma
5V @ 3A
6.3V @ 4.5A

But I think I'm trying to hard to use the wrong power transformer.
So........ I've decided to make a single ended KT 88 amp with reverb.
Tube rectified preferred. 
Does anyone have a shared schematic that could be a starting point?