Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: timmyjoe on October 27, 2021, 09:31:33 pm

Title: 5e3 head layout
Post by: timmyjoe on October 27, 2021, 09:31:33 pm

Making an amp for a friend. Think I read that it is good to keep the transformers away from other parts.

I am worried about all the weight being in one side. Anything else I should consider?

Title: Re: 5e3 head layout
Post by: sluckey on October 27, 2021, 09:43:11 pm

The internet is full of pics that show what a successful 5E3 head should look like. I would not stray too far.

     https://www.flickr.com/photos/137947485@N03/sets/72157669582686771

Title: Re: 5e3 head layout
Post by: Latole on October 28, 2021, 03:57:47 am

Quote from: timmyjoe on October 27, 2021, 09:31:33 pm

Making an amp for a friend. Think I read that it is good to keep the transformers away from other parts.

 

Keep away Power Transformer from preamp tubes only .

https://www.littledawgamps.com/tweed-deluxe/

Title: Re: 5e3 head layout
Post by: pdf64 on October 28, 2021, 05:52:43 am

Layout is a key aspect of turning a circuit diagram into a correctly working (or otherwise) real world amp.
Until you get a firm grasp on the concepts, to avoid frustration / disappointment, I think it would be better to use a proven design.
Michael at Modulus is a highly competent engineer, see his take on the matter

https://modulusamplification.com/Tweed-Deluxe-Style-Head-Chassis-P5411536.aspx

https://modulusamplification.com/Modulus-Tweed-Deluxe-Head-kit-12-Watt-Output-P5397343.aspx

Most amps chassis are extremely unbalanced, there are pressing constraints to keep power supplies and output stages away from input stages and preamps.
The imbalance isn’t a big deal generally, perhaps consider offsetting the cab handle if that’s still a concern.

Title: Re: 5e3 head layout
Post by: Latole on October 28, 2021, 06:45:34 am

Quote from: pdf64 on October 28, 2021, 05:52:43 am

Layout is a key aspect of turning a circuit diagram into a correctly working (or otherwise) real world amp.
Until you get a firm grasp on the concepts, to avoid frustration / disappointment, I think it would be better to use a proven design.
Michael at Modulus is a highly competent engineer, see his take on the matter

https://modulusamplification.com/Tweed-Deluxe-Style-Head-Chassis-P5411536.aspx

https://modulusamplification.com/Modulus-Tweed-Deluxe-Head-kit-12-Watt-Output-P5397343.aspx

Most amps chassis are extremely unbalanced, there are pressing constraints to keep power supplies and output stages away from input stages and preamps.
The imbalance isn’t a big deal generally, perhaps consider offsetting the cab handle if that’s still a concern.

100% right !