I've been eyeing this chassis awhile
https://www.tedweber.com/5e7tch/
I am wondering about the transformer situation.
Does anybody know if this 5g9 chassis will accept 5g9 iron? Am I stuck with 5e7 iron?
Weber doesn't really indicate if the chassis would have to have cutouts modified, if they are 5g9, or if there no cutouts at all? Personally I would prefer nothing at all vs the wrong transformer cutouts. I've never used a Weber chassis before.
Anyone built on this particular chassis?
Are there any other 5g9 chassis out there?
Weber tremolux chassis questions
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- dragonbat13
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Re: Weber tremolux chassis questions
The 5E7 is a 6L6 amp and the 5E9 is a 6V6 amp. I would expect the 5E7 power transformer to be larger. The Hammond replacement transformers agree. The 5E9 uses a 290BX with a bolt pattern of 2.25" x 2.831". The larger 5E7 uses the 290D2X with a bolt pattern of 2.75" x 3.438".
https://www.hammfg.com/files/parts/pdf/ ... 1697661948
https://www.hammfg.com/files/parts/pdf/ ... 1697661948
Contact Weber. They can tell you what the PT bolt pattern dimensions are.
https://www.hammfg.com/files/parts/pdf/ ... 1697661948
https://www.hammfg.com/files/parts/pdf/ ... 1697661948
Contact Weber. They can tell you what the PT bolt pattern dimensions are.
- Colossal
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Re: Weber tremolux chassis questions
DB,
I have this exact chassis, waiting in the wings for a Tremolux-type build. I say "Tremolux-type" because the circuit will be similar but with a few mods. Indeed the PT chassis cutout for the Weber chassis is for Bandmaster iron, so be advised. I selected a lower B+ Bandmaster PT, so the (tube) rectified voltage should be close to the 5G9A specified voltages. I opted for an oversized Deluxe Reverb A-frame OT (6k3 primary) so I can run 6L6GC, 5881, or 6V6 in cathode bias.
Hope that helps.
I have this exact chassis, waiting in the wings for a Tremolux-type build. I say "Tremolux-type" because the circuit will be similar but with a few mods. Indeed the PT chassis cutout for the Weber chassis is for Bandmaster iron, so be advised. I selected a lower B+ Bandmaster PT, so the (tube) rectified voltage should be close to the 5G9A specified voltages. I opted for an oversized Deluxe Reverb A-frame OT (6k3 primary) so I can run 6L6GC, 5881, or 6V6 in cathode bias.
Hope that helps.
- dragonbat13
- Posts: 349
- Joined: Tue Feb 27, 2007 1:38 am
- Location: Southwest Louisiana
Re: Weber tremolux chassis questions
Thanks for the clarification.
Colossal, who's PT did you decide to use. I like your ideas on that setup.
In all honesty, I kinda want to get a bit more power out of the amp anyway.
I think a pair of 5881's would be nice. Always liked that tube.
Colossal, who's PT did you decide to use. I like your ideas on that setup.
In all honesty, I kinda want to get a bit more power out of the amp anyway.
I think a pair of 5881's would be nice. Always liked that tube.
Re: Weber tremolux chassis questions
I used a set of Mercury transformers.dragonbat13 wrote: ↑Thu Jun 13, 2024 1:33 am Thanks for the clarification.
Colossal, who's PT did you decide to use. I like your ideas on that setup.
In all honesty, I kinda want to get a bit more power out of the amp anyway.
I think a pair of 5881's would be nice. Always liked that tube.