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November 23rd 20, 01:05 PM
posted to rec.radio.amateur.boatanchors
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Collins 30L-1 Output drops at higher bands
Tim Freeze wrote:
Thank you for the advice. I did check the -170 bias source and it is -166.5 V DC with 5.5 volts ac ripple. So I'll be replacing the rectifier with a modern one. You could put 1N4007 in there and it wouldn't hurt anything and might improve long-term reliability. But I'd first replace that 10uF capacitor, which you already know is bad and is most likely the source of that ripple. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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