Re: uBITX v6 Low Audio - Back at it again
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Sorry, my bad. It is 0.82 kOhm, not 0.82 as reported. Thanks for catching that. Base of Q30 is in fact 50.8 ohms. i rechecked. OK, C30 will get removed and voltages checked on Q30. 73, Richard AG5M On Friday, February 28, 2025 at 12:38:02 PM PST, tomekdm sp7etd via groups.io <tomekdm@...> wrote: Hi Richard, Really sorry, my mistake, I have measured C10 again to the ground and this is also ~823 ohm. But don't bother with C10, nor C30. This is the same as measuring resistance from base of Q10 and Q30 to GND. In both there is ~823 ohms. Your measurements brings confusion as I was thinking we have only trouble at 2nd RX chain, are you sure its not 0.82 kOhm? If this is 0.82k then its OK. Anyway 50 ohm on base of Q30 is NOK. Can You de-solder C30 and measure voltages on Q30 before replacing Q30? Regards Tomasz |
Richard AG5M