There were several JCM900 amplifiers. That is the model "type". Do you know the model number? ie: 2100, 4100, SLX2500, etc.
Asking "what kind of Potentiometer is the lead gain of a jcm900 marshal amplifier" is kind of like asking what tires go on a Ford pickup. There were alot of models.
Chuck
"Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
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