S.I.R. 100W SuperLead Schematic pt. II

Everything from original vintage Marshalls to reissues.

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Unique
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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by Unique » Tue May 07, 2019 2:18 pm

Does anyone know the brand of pots Marshall used in their amp's back in the early 80's? I've looked everywhere and I can't find any info on them. Thanks in advance.

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snakepit86
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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by snakepit86 » Wed May 15, 2019 12:32 pm

off all the JMPs and 800s that i've done service and mdos the brand allways was CTS the code its allways 137 followed by two digits that are the year.

Unique
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Joined: Wed Oct 02, 2013 12:48 pm
Just the numbers in order: 13492

Re: S.I.R. 100W SuperLead Schematic pt. II

Post by Unique » Wed May 15, 2019 3:13 pm

Thank you for replying. That's Interesting. The pots in my '83 2203 just say A1M in red on the side and nothing else. They don't even have any factory or date codes anywhere, just a plain back.

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