innercityman
Well-known member
Hi,
I'm trying to identify the issue on one channel of an MP1-A preamp. Channel one have low distorded signal; I've measured tensions at each tubes and I have an issue at ECC82 cathode. On channel 2 which is working, I have about 7V at cathode but almost nothing on channel 1. I've checked and measured 47uF caps and 4,7K 1W resistors that follow cathode and they're good. Any idea on where I should investigate ?
Thanks
I'm trying to identify the issue on one channel of an MP1-A preamp. Channel one have low distorded signal; I've measured tensions at each tubes and I have an issue at ECC82 cathode. On channel 2 which is working, I have about 7V at cathode but almost nothing on channel 1. I've checked and measured 47uF caps and 4,7K 1W resistors that follow cathode and they're good. Any idea on where I should investigate ?
Thanks
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