Is there a 2X EL84 output trainwreck schematic?
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- RJ Guitars
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Is there a 2X EL84 output trainwreck schematic?
Hello All - I am looking to build an EL-84 output amp using two EL84's rather than four like in the Liverpool... has any done this or is there another trainwreck model that I could follow?
Thanks - RJ
Thanks - RJ
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Re: Is there a 2X EL84 output trainwreck schematic?
Check the 18 Watt Forum for the "T-Rex". It's a Wreck preamp into a Marshall 18 watt power amp. ![Smile :)](./images/smilies/icon_smile.gif)
![Smile :)](./images/smilies/icon_smile.gif)
Re: Is there a 2X EL84 output trainwreck schematic?
There was a 4xEL84 named Ginger that had a half power switch.
See also TubeDogSmith's gorgeous build of a Rocket in http://ampgarage.com/forum/viewtopic.php?t=199. There are some notes in that thread regarding cathode bias values for a 1/2 power Rocket.
Bottom line is that you can go with smaller iron if you like or build with the larger iron and modify the cathode resistors to suit the single pair of output tubes. You could dink with the power supply to mimic the sag of a full up Rocket but I doubt you will get that loud anyhow.
Liverpool or Rocket? - that is a whole 'nother thread. Rocket is closer to a Vox AC30 in its topology.
See also TubeDogSmith's gorgeous build of a Rocket in http://ampgarage.com/forum/viewtopic.php?t=199. There are some notes in that thread regarding cathode bias values for a 1/2 power Rocket.
Bottom line is that you can go with smaller iron if you like or build with the larger iron and modify the cathode resistors to suit the single pair of output tubes. You could dink with the power supply to mimic the sag of a full up Rocket but I doubt you will get that loud anyhow.
Liverpool or Rocket? - that is a whole 'nother thread. Rocket is closer to a Vox AC30 in its topology.
- RJ Guitars
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Re: Is there a 2X EL84 output trainwreck schematic?
Cool guys, thank you.... I like the simplicity of that Rocket... The various pieces are starting to come together for me. I appreciate your patience and guidance.
rj
rj
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Re: Is there a 2X EL84 output trainwreck schematic?
hi, first post on this forum. i believe there are a couple of 2X EL84 designs in the well-circulated wreckxpr.pdf file - these aren't liverpool designs thoug, they're blues express versions. hope this helps - i'm pretty much of a noob, but think that this forum would be a great place to learn more about tube amps and wrecks in particular.
i'm presonally thinking of "wrecking" valve junior. if it works out, i will share that experience here... regards, aditya
i'm presonally thinking of "wrecking" valve junior. if it works out, i will share that experience here... regards, aditya
In the interest of full disclosure, I am Animal Factory Amplification.
Re: Is there a 2X EL84 output trainwreck schematic?
Here are two different builds by Dartanion and myself. Just use the Liverpool schematic, leave off two tubes and you can read about the rest here
http://ampgarage.com/forum/viewtopic.php?t=3310
http://ampgarage.com/forum/viewtopic.ph ... +liverpool
http://ampgarage.com/forum/viewtopic.php?t=3310
http://ampgarage.com/forum/viewtopic.ph ... +liverpool
- camden_guitarist
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2xEL84 rocket
Hi there, I'm gonna try a 2XEL84 Rocket next but probably in a small combo format, what kind of transformers should I use for an output of say 15W?
Cheers,
Paul.
Cheers,
Paul.
Re: Is there a 2X EL84 output trainwreck schematic?
Here is the T-rex
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Re: Is there a 2X EL84 output trainwreck schematic?
Why don't you just take out two output tubes!!! DONE!!! :O
Robb
Robb
The Phoenix posts
Brilliant! Only a few years late...rmroza wrote:Why don't you just take out two output tubes!!! DONE!!! :O
Robb
Check the dates of the posts that you are reading!