Just had to make another indicator and thought i would post it here , not the greatest or most sophisticated design but a proved design that works well and can be built into very small spaces ..
components
RV1 -10K This is useful for adjusting the brightness of the LED i put in place of the meter. R1/2/3 50ohm carbon resistors 2 watt .R4 1K (0.5w), C1/2 10nf , D1 OA91 or similar.I made a 4 watt version that went inside my mfj cub
you can ommit points one on the diagram , i can't remember what they were for in the original design. i just have a simple switch , in line or out
i have actually built one directly on the back of a DPDT switch before today ..
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