ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum.

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  

Converting Pro Jr to 5E3-style?


 :
5/24/2000 9:11 PM
gt
Converting Pro Jr to 5E3-style?
I own a Pro Jr that never liked too much. I am considering to convert its preamp to 5E3-style but taking the same power supply and output stage.  
Do you think it should work?  
 
Thanks in advance
 
Today
ampage
archive
And now, a word from our sponsors:


 
5/25/2000 3:03 AM
Lee M.

I think it be a lot of work and it won't sound like a tweed Deluxe with the EL84s so why bother?
 
5/26/2000 3:34 AM
gt

quote:
"I think it be a lot of work and it won't sound like a tweed Deluxe with the EL84s so  
why bother? "
 
 
You're right but I think it won't sound like a Pro Jr. too ;-) I just would tweak about tube amps for learning and hobby. It's hard for me to find scratch and parts are very expensive here so I'd go better with stuff I already own.  
 
Regards
 
5/26/2000 1:09 PM
gt

What is Tweed Deluxe's plate voltage?  
Should Pro jr OT drive a pair of 6V6?  
 
Thanks in advance
 
6/3/2000 10:49 PM
Chris

I thought the plate-voltage is about 375 Volts .  
 
Due to the pcb-constrauction I think it's a hell of a job to convert it to 6V6s ......  
 
Good luck !  
 
Chris
 
6/4/2000 5:29 AM
gt

quote:
"Due to the pcb-constrauction I think it's a hell of a job to convert it to 6V6s"
 
 
I'd build a brand new board and put in place new sockets.  
I'm wondering if PJ's OT will be good for 6V6.  
Alternatively I may think to take EL84's. What's the difference in tone?  
 
Thank you
 
6/4/2000 9:41 AM
Chris

Hi !  
 
I've used a DelRev-O.T. for a cathode biased EL84 pp-amp .  
 
I can't tell you about the difference in tone due to the design of the Pro Jnr .  
 
 
In general :  
 
EL84 : VOX AC30 , lots of mids , sweet  
 
6V6 : nice 6L6-sound when not overdriven , a little "EL34" when overdriven ( I like 6V6s !!! )  
 
I have to check the ProJunior-schematic .  
 
Good luck !
 

  Page 1 of 1