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Light of B
On a seasonal note, what kind of contraptions
do you all use for ON indicator (B+ indicator) ? in the guitar multifx box i'm developing, that hopefully sees the light of day next quarter , i use a B+ of 240V delivering just a handful of mA's. with 2 680 uF 200V atx supply cap's, balancing/bleeder R's across in total 120K for 2mA, 33K.27K.33K.27K replace that bottom 27K with a 22K in series with -in parallel- 4K7, 6V zener,1K2 +white LED forms a fine B+ indicator, lighting up visibly at around 40 V B+ and above. so whaddoyouuse ? :-) Rudy |
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