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Knowledge Base > Discontinued Products > 528E Voice Processor

The output level of my early version 528E Voice Processor suddenly became very noisy. What can I do?

This pertains to the late revision 528 and early revision 528E manufactured between approximately 1993 and 1996.  The board will be a ‘through-hole’ assembly.

Turn the power off. Cut Jfets Q2 and Q3 out of the circuit.

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