05-09-2024, 03:32 PM
(05-09-2024, 02:56 PM)catch29 Wrote: Great, got myself a 150ohm 25w wirewound. I have noticed something on the chassis I don't understand, a 4uf cap with positive to earth?, It looks original, it's been like that for 70 years?. Am I missing something?.
No, that's totally normal for the FM detector. Those often dry out and then reception is poor. About 0 V with no station and -15V to -30V or even more with a strong station. A 3.9 uF or 4.7 uF 50V part is fine. Plus to chassis as the the DC is based on signal level and negative
