Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: RodrigoEliedson on May 10, 2024, 03:27:55 pm

Title: Replacement circuit for Marshall DSL40c V1 amplifier
Post by: RodrigoEliedson on May 10, 2024, 03:27:55 pm
Hi, guys

I have e DSL40C that has a lot of issues and a not good sound.

I would like to ask you guys if is it possible to replace marshall PCB for a one channel el34 base amp board, to work with marshall cabinet, transformers, pots, tubes and etc?

If yes, witch sellers do you recommend me to buy this kit/components?

It's a bad idea?

Cheers!!!
Title: Re: Replacement circuit for Marshall DSL40c V1 amplifier
Post by: Latole on May 11, 2024, 03:44:15 am
The DSL40 has 2 channels and you would like to replace the whole circuit with a single channel board.

I doubt it's possible.
1- To find a board
2- to fit the board in the amp.

I could be wrong.

Can't the current circuit be repaired? That is the best option
Title: Re: Replacement circuit for Marshall DSL40c V1 amplifier
Post by: sluckey on May 11, 2024, 07:44:23 am
Yes, it's possible. Hoffman sells the board and parts for a Plexi 50 (https://el34world.com/Hoffman/files/Hoffman_Plexi50.pdf). This is not a paint-by-numbers kit, and the linked drawings are the only instructions. Requires electronic knowledge and basic fabrication skills, tool, etc. Are you up to the task?
Title: Re: Replacement circuit for Marshall DSL40c V1 amplifier
Post by: Latole on May 11, 2024, 02:31:10 pm
A DSL40 working board $180 CND

https://reverb.com/item/40710999-marshall-dsl40-circuit-board-set
Title: Re: Replacement circuit for Marshall DSL40c V1 amplifier
Post by: Esquirefreak on May 11, 2024, 03:02:43 pm
Use the chassis and transformers to build something else. It'll be fun! And way more durable than a DSL 👍

/Max
Title: Re: Replacement circuit for Marshall DSL40c V1 amplifier
Post by: Latole on May 11, 2024, 03:12:02 pm
He may need a layout .

Why not this one ?   https://robrobinette.com/How_the_Marshall_JCM800_Works.htm