Marshall DSL40C Knobs?

[jondoe]

Hi all,

I'm in the process of refurbishing a Marshall DSL40c, it had a bad bias resistor which was causing the valves to get quite upset. I've replaced the resistors and the tubes and shes a happy little amp, however, she's suffering from a lack of knobs. I ordered what I thought was the correct eight pack (PACK-00036) but when the arrived although they fit the D shafts on the pots, the indicator line is in completely the wrong place?! Is there a trick to this I've over looked? Do the early models have knobs from a different range? If anyone has an experience I'd be grateful, thanks

[Pedro Vecino]

I did not know that possibility. A solution could be to try to take off the golden covers with a cutter and then reorient them.
Maybe a sudden change in temperature can make it easier to remove them (from the freezer to a bowl with hot water). But I've never tried it.
In olds JCM800 it is relatively easy (in fact sometimes they get lost) but the new ones seem to use a stronger glue.

[Jazz P Bass]

This site claims that this is the correct knob for the DSL40C.

https://www.amprepairparts.com/marshallknobs.htm

[Randall]

There is no trick you've overlooked. Those knobs are for pots that were mounted 180 degrees from your situation, or mounted topside vs. under the board. I recently had this same problem with a red knob Fender Twin. So it's either try to reorient the covers as mentioned, or continue your search for the correct knobs.

[drewl]

Try a heat gun or hair dryer to melt the glue and gently pry the lid up.
Careful, they bend easily.

[g1]

This site claims that this is the correct knob for the DSL40C.

https://www.amprepairparts.com/marshallknobs.htm

[ATTACH=CONFIG]51197[/ATTACH]

Yes, the MKDS-C shown on that page should be correct.

Jondoe, I think instead of the PACK-00036 you need the PACK-00035

[Bloomfield]

If you do end up having to heat them to get the caps off, instead of a heat gun I'd try placing the cap flat against a clothes iron; that will but the heat only where you want it. You could use a thin cloth to protect the surface. Sounds like they might just be the wrong knobs though.

[jondoe]

The supplier has advised that I try the PACK-0035 (as mentioned above) if those are also wrong I guess they'll be getting some gentle heat persuasion. Maybe the earlier ones are 35 and the newest at 36.

It's never easy is it

[jondoe]

I can confirm that the 35 pack face the right direction, which must be for the earlier models like this one