Originally posted by J M Fahey
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Replacement for Ibanez volume pot marked 1B100?
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Originally posted by J M Fahey View PostI think I can reasonably confirm itīs indeed 100k , just marked in a unique "Ibanez way".Originally posted by EnzoI have a sign in my shop that says, "Never think up reasons not to check something."
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Maybe they had to use a conventional over the counter part in this design, for whatever reason (space? ... availability? ...) instead of their usual custom ordered by the millions ones, and just to make it difficult for the end user they labelled it in a cryptic way.
At least anybody asking Mouser or any other supplier for a "1B100ohm" pot will either get a deer in the headlights look or a useless 100 ohm pot, and be forced to go through Authorized Service.
Or they can plausibly deny: "no, our $7 + shipping 1B100 pot is NOT the same as an 80 cent B100K pot which you probably have in your parts drawer"
Just being a little paranoid he he.Juan Manuel Fahey
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Update to this old thread. This amp seemed to be working OK with a 100k ohm volume pot, though it was WAY off from the original. My kid was using it for a while, sounded fine, then went to use it one day and it was very noisy. Opened it up to take a look and noise went away. Loaned it to a friend who said it sounded a bit fuzzy. Got it back and noticed that it was picking up AM radio when you turned the volume knob to a certain point. Probed the speaker output and there was a large signal up over 100kHz on the speaker output. It seems like having too high a pot value can cause some issues. I found a 1k pot and installed that and it seems to be working very well now.
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