• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Troubleshooting UA 2-610 Preamp

i repair two sets, was 22Kohm 3W burnt, i replace with 5W
check over:Security check
 

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  • la-610mkii_manual.pdf
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  • la610 bias.txt
    la610 bias.txt
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Thank you for your response, Claudiomas! I checked the board over for obviously burnt components and I didn’t see any. I’ll meter it out.

Are there any differences between the LA-610 and the 2-610? I imagine they are conceptually the same, but I don’t know for sure.