prov:value
| - In the preferred embodiment, V1 is about +8 volts, V2 is ground, V3 is about -5 volts, R1 and R6 are 4.7K?????1%, R2 is about 100 ??, R3 is a 1K ??Q precision potentiometer, R4 and R8 are 2.2 K ??, R5 is one MEG??, R7 and R10 are 1K ??, R9 is a 10K ?? potentiometer, A1 and A2 are Signetics NE5532 operational amplifiers, and D1 44 is a SS94A1 Honeywell Micro-Switch.
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