The 7075 is a ceramic element mic. Ceramic and crystal elements measure open circuit for DC. They look like capacitors. Your mic may be fine.
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On 2/2/2025 3:57 PM, Craig W8CS via groups.io wrote:
I have a 7075; tried to get a resistance measurement that was not the PTT closure and every combination was open circuit. Don't have a schematic so I was fumbling in the dark.
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Craig/W8CS
Greenville, SC
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Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998
