I don't think you testing the mike, because it's soldered in.

This jig uses dual stereo type jacks which confuses me a s to the purpose.

I was going to say telephone handset tester ( like used on the BC659, but that used different type jacks...)

On Saturday, July 16, 2022 at 04:12:28 AM EDT, Doran Platt <[email protected]> wrote:

Hmmmmm.... 2 place intercom or mic tester. Carbon mic setup. The mic bias resistor is visible???

Jeep K3HVG

On 07/15/2022 10:13 PM B. Smith <[email protected]> wrote:

Mystery Test Board. 1 hour project. Kinda looks like a 1 hour project.
Z
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