Anyone Used This Edcor OT for 2xel84 Rocket?

Express, Liverpool, Rocket, Dirty Little Monster, etc.

Moderators: pompeiisneaks, Colossal

Post Reply
Matt D
Posts: 170
Joined: Fri Apr 22, 2011 6:21 pm

Anyone Used This Edcor OT for 2xel84 Rocket?

Post by Matt D »

http://www.edcorusa.com/p/429/cxpp25-ms-8k

Looks like a nice fit for a half power rocket. Anyone used this one?
surfsup
Posts: 1513
Joined: Mon Nov 29, 2010 12:21 am
Location: Chicagoland

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by surfsup »

I used that for a build but it wasn't a rocket. It was a 2xEL84 though. Sounds very good. Liverpool type of build. I had an issue originally but it turned out to be a HF oscillation that was cured by shielding the V1 input lead. I can't answer what it sounds like for a Rocket though b/c I never played a rocket.
telentubes
Posts: 897
Joined: Mon May 24, 2010 11:29 pm
Location: Bellingham, WA.
Contact:

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by telentubes »

I used an Edcor XPWR156-120/125 for the power transformer, and an Edcor GXPP15-8-5K output transformer for my 2XEL84 Rocket, yeieding excellent results. One of my favorite, and most giged with amps. Lots of headroom and plenty of volume.

I just helped a friend build one using the same PT, but with a GXSE15-8-8K Output Transformer, just to see what the difference would be. We haven't had time to A/B yet as it just got fired up and doesn't have a cab yet.
Markusv
Posts: 393
Joined: Wed Dec 21, 2005 3:16 pm
Location: Toronto, Canada (yes it's friggin cold!)

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by Markusv »

I'm thinking that if the 15 watter has great headroom the 25 watt version would sound even "bigger"?
Is that necessarily so?

I'm considering exactly the same thing for myself and a friend of mine.
We each want the same amp and my previous "spare parts -lying-around- build" was such a success we now want to do a refined version.
The spare parts amp used a Triode electronics 25 watt output and the amp has huge sound. I'm thinking partly because of the over-sized output.

Thoughts?

Markus
.........Now where did I put it?
User avatar
RJ Guitars
Posts: 2663
Joined: Tue Nov 14, 2006 3:49 am
Location: Los Alamos, New Mexico
Contact:

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by RJ Guitars »

The cxpp25-ms-8k is a great transformer, but it's massive for a 25 watt unit. It's physically the same size as the 35 watt unit they build for me, Same basic footprint as the 35 watt Stancor / Heyboer / Pacific / Edcor / etc.

I have recently contracted with Edcor to custom wind a 15 watt transformer built on the smaller frame. It will have a 8.1K primary and 4, 8, 16 ohm output taps. In their typical overbuilt/under-rated methods, I am anticipating this will be a more than enough transformer for a typical 18 watt build but without the bulk of the 25 watt species. I will of course push it into service with a pair of 6V6GT's and test the limits... I don't expect any trouble but have to say that they would probably refer to this as abuse if you were to damage it and ask for a replacement. rj
Good, Fast, or Cheap -- Pick two...

http://www.rjguitars.net
http://www.rjaudioresearch.com/
http://diyguitaramps.prophpbb.com/
Markusv
Posts: 393
Joined: Wed Dec 21, 2005 3:16 pm
Location: Toronto, Canada (yes it's friggin cold!)

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by Markusv »

RJ

When are you expecting these OT's??

Markus
.........Now where did I put it?
User avatar
RJ Guitars
Posts: 2663
Joined: Tue Nov 14, 2006 3:49 am
Location: Los Alamos, New Mexico
Contact:

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by RJ Guitars »

Markusv wrote:RJ

When are you expecting these OT's??

Markus
Just today received confirmation that the first dozen are in the queue... typically 4 weeks delivery time from those guys in recent times - they are slammed with work. If they show before then I'll send you a prompt. I'll probably sell the first few at $45 each (TAG price) and see how well they go over.
Good, Fast, or Cheap -- Pick two...

http://www.rjguitars.net
http://www.rjaudioresearch.com/
http://diyguitaramps.prophpbb.com/
Markusv
Posts: 393
Joined: Wed Dec 21, 2005 3:16 pm
Location: Toronto, Canada (yes it's friggin cold!)

Re: Anyone Used This Edcor OT for 2xel84 Rocket?

Post by Markusv »

Thanks!
At 45 I'll bite big time!
.........Now where did I put it?
Post Reply