Re: Neptune mixer model 611 - Works for a few minutes then fades out and distorts
Hi everyone, sorry about the delay, I was busy these last few days.
So, I got under the board and tested the pots in circuit. They read approx. their value, which is indicated to be 125k. They seem to work as intended, no broken track, otherwise they'd read open circuit after a certain point, right ?
Also I don't seem to be able to find any info on these... They're 125k pots, and that appears to be a non-standard value, given that I can only find some on ebay for like 15€ each ?
The writings on them are similar for all level pots : LM4245A 125k 1377849 (EDIT : I've found that they're CTS pots made in 78 after their code, but still no idea if they're linear or log, and 125k still seems impossible to find nowadays)
Now google and bing give me NO results at all for these numbers ! Not even a single page. So I don't know what's up, but I guess they don't make these anymore (whoever did at the time) ?
Then what should I do to test them ? Take one out of circuit ? I don't have any means of replacing them with same value pots, and if I have to replace them all I have to make sure the covers fit...
I'd be very grateful if anyone who knows what's going on could shed some light for me !
Hi everyone, sorry about the delay, I was busy these last few days.
So, I got under the board and tested the pots in circuit. They read approx. their value, which is indicated to be 125k. They seem to work as intended, no broken track, otherwise they'd read open circuit after a certain point, right ?
Also I don't seem to be able to find any info on these... They're 125k pots, and that appears to be a non-standard value, given that I can only find some on ebay for like 15€ each ?
The writings on them are similar for all level pots : LM4245A 125k 1377849 (EDIT : I've found that they're CTS pots made in 78 after their code, but still no idea if they're linear or log, and 125k still seems impossible to find nowadays)
Now google and bing give me NO results at all for these numbers ! Not even a single page. So I don't know what's up, but I guess they don't make these anymore (whoever did at the time) ?
Then what should I do to test them ? Take one out of circuit ? I don't have any means of replacing them with same value pots, and if I have to replace them all I have to make sure the covers fit...
I'd be very grateful if anyone who knows what's going on could shed some light for me !
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