Trainwreck PT and OT originals. I have em!

[Roe]

It would be cool to have transformers for dual and tripple expresses with 3k3 and 2k2 primaries for quads and sextets of el34s

Are you being cheeky? A 6 output tube Express! Above ground nuclear tests are prohibited.

actually, this is serious, since 6k6 at 400+v (around 25w at point of breakup) isn't enough for me

[RockingClassElectronics]

Please don't put the sticker on the bell. Why can't trannie makes stick this stuff on the bottom??? That way you can leave it there forever and when someone goes to replace a trannie in 20 years they'll get a happy surprise.

I'm sure your sticker is mindfully thought out to peel off, but how about after 10 years on a shelf? Or after sitting in a UPS truck from CA to NYC in August?

Which is why for our originals we will definitely be going the screen printing route. We want them to look nice, but also let people know the info like who, what, and how to...

If you want one that looks aged, we'll do that for you. If you want one that looks squeaky clean and brand new, we'll do that for you as well. But either way, it's gonna say Rocking Class on it with manufacture date and part #. That being said, it will avoid confusion of mass proportions another 20 years down the line.

[RockingClassElectronics]

The schematics for our "Ken Spec" parts, with part numbers labeled on end bell. Same lams, same cores, same wire gauges, same wire colors etc.. Sorry it's taken me so long to get these up. Busy schedule and illness are a....wait for it.....a SICK combo. Stay away from wenches with mono. Hope you all rocked out over Easter weekend/Passover. -Dave

[RockingClassElectronics]

The schematics for our "Ken Spec" parts, with part numbers labeled on end bell. Same lams, same cores, same wire gauges, same wire colors etc.. Sorry it's taken me so long to get these up. Busy schedule and illness are a....wait for it.....a SICK combo. Stay away from wenches with mono. Hope you all rocked out over Easter weekend/Passover. -Dave

[RockingClassElectronics]

The schematics for our "Ken Spec" parts, with part numbers labeled on end bell. Same lams, same cores, same wire gauges, same wire colors etc.. Sorry it's taken me so long to get these up. Busy schedule and illness are a....wait for it.....a SICK combo. Stay away from wenches with mono. Hope you all rocked out over Easter weekend/Passover. -Dave

[Roe]

The schematics for our "Ken Spec" parts, with part numbers labeled on end bell. Same lams, same cores, same wire gauges, same wire colors etc.. Sorry it's taken me so long to get these up. Busy schedule and illness are a....wait for it.....a SICK combo. Stay away from wenches with mono. Hope you all rocked out over Easter weekend/Passover. -Dave

can't find the schematics (attachments)

[ampgeek]

I can see them in the "4:58" post but not in the "4:59" follow on post.
Dave O.

[Mark]

It is good to hear the original iron will be made available.

When will a power transformer be available with a 240vac primary?
Perhaps in the same format as the Classic Tone transformer?

http://www.classictone.net/40-18065.pdf

I the Rocket and Liverpool transformers to be made available?

[redshark]

Mark, the express and Liverpool iron is the same. The rocket PT is the same but with a 5v tap added to power the rectifier and the rocket OT is diferent. That is why the Chris Merrin name has been recently mentioned in some threads.
Maybe pacific has the specs of that OT but I'm sure is not a transformer that Ken ordered in big numbers.

[RockingClassElectronics]

I can see them in the "4:58" post but not in the "4:59" follow on post.
Dave O.

It accidentally got posted twice. The first time around gave me an error message, so I clicked it again. But it wound up working anyway. There's only supposed to be 2 images. If you see them in one post, but not the other, youre not missing anything. As for a Euro version, we will be working on one soon. We've gotten really busy, as we usually do in the spring. Not with audio parts, but Pacific Transformer in general. As well as our other company Hughes Autoformers. Another brand under Pacific that makes RV voltage boosters. If you guys have any questions or inquiries, email dave@rockingclass.com so I can organize and keep track of all your questions better than on this forum. For some reason I'm only getting topic reply notifications half the time now and not every time something is posted. Our website was updated a few days ago, and hopefully I can get around to it again today. therockingclass.weebly.com

[Mark]

Hi Redshark, I've heard two output transformers were used with the Liverpool, one with the 5.2K primary and the other with the 6.6K primary.
I think RJ sold a transformer where you could select either primary impedance.

Agreed Dave, I didn't receive a notification of reply either.

[RJ Guitars]

Mark, the express and Liverpool iron is the same. The rocket PT is the same but with a 5v tap added to power the rectifier and the rocket OT is diferent. That is why the Chris Merrin name has been recently mentioned in some threads.
Maybe pacific has the specs of that OT but I'm sure is not a transformer that Ken ordered in big numbers.

Jon Mark adds an external 5V tranny and otherwise Pacific never made one for a Rocket. I have notes here in my archives from Pat Thomas (Dave's dad) indicating they made one and only one set of transformers for Trainwreck. Earlier in this thread Dave confirms that for us and mentions there was some work on other prototypes that never went into production.

[RockingClassElectronics]

One of those prototypes includes a 240V primary version. We will be putting these in production in the coming week. Will probably only be 5 pieces.

[redshark]

Cool info RJ, so that makes me think that actually Ken probably used some Stancor P-8378 in the rockets that we have seen that didn't used an internal 5V tranny. The pacific 11410 is basically a Stancor P-8378 minus the 5v so if you want to use the 11410 a filament 5V mini transformer is needed and that is what shows in the JM rocket gutshot.

Actually I saw a pic of a Ken Fisher built rocket with pacific transformers. The owner told me his OT was pacific so I know that @ some point they did @ least 1 prototype and it went in an amp. Still that amp I'm sure had a 11410 power because a filament 5v transformer was placed in the same spot as JM's.

I know 1 rocket used a Heyboer PT for sure.

I think we are getting close!!


Mark, I had seen that 5.2k Liverpool thing but I don't think is correct. AFAIK the pacific 11410 PT and the 11415 OT were used for both express and Liverpools.

[RockingClassElectronics]

questions:
What would be the actual difference between a 5V filament vs 6.3V?

I don't believe our parts were ever used for a Rocket. May be a Heyboer.

Also out of curiosity, for all of you out there building clones for other people:
Are you selling, have web sites, etc...for your work? Besides this forum I mean... I've been looking at some of these layouts and it looks like one of the easiest circuits I've ever seen (Express). Transformers aren't just my thing and I've only come into this tranny world a year ago. I build amps, speaker cabs, and FX pedals mostly. I build Climaxes (Climaxii...) I'm working on designing my own amp-monster, but have never actually played through a Trainwreck's Trainwreck. I hear clips on youtube, but no youtube demo ever does a justice (Im also a snobby sound-engineer) and mics are always being overloaded and it just sounds like a scratchy, generic guitar sound. Can someone point me in the direction of a good Trainwreck clip? Are there any on this forum?