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Erratic Blue Meters

Started by nre, Jan 01, 2025, 06:49 AM

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nre

Jan 01, 2025, 06:49 AM
If your blue meters are acting erratic and "bounce" on occasion, the trimmer resistors for each meter on both the 2105- and 2505-meter board should be replaced.   The original is a 5kOhm Bourns series 3351 is replaced with a 5kOhm Bourns series 3352, same lead configuration with smaller thumbwheel.


meterboard_trimpot_new(LEFT).jpg 

trimpot_,meterboard_1.jpg
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