[ARC5] Carbon Microphone Inquiry

[Dennis DuVall]

Cathode driven 6J5 carbon mic input circuit, haven't run into one of those in a while.

On mics, many different models of the T-17 were made, all have been showing their age for some time now, some still work great but a lot more don't work at all any more.  Am not familiar with the Telephonics units.  Best bet for your Stancor, though, would be one of the widely available Motorola hand microphones used for many years in Taxis, Police cars, etc, see eBay 271380451592 for a somewhat overpriced example.  These units will work plugged directly into most carbon mic circuits and sound great.  Turn up regularly at flea markets too.

Good luck,

Dennis D.  W7QHO
Glendale, CA

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On Oct 14, 2014, at 11:24 PM, k7mks at comcast.net wrote:

> Am restoring a Stancor ST-203A 10 meter rig which requires a carbon microphone into a 6J5 grounded grid speech amp to a pair of 6V6's.. Would appreciate comments from those who have experience with the the T-17 and Telephonics mics. Does one have advantages over the other or it it a push? 
> 
> I trust this inquiry about carbon mics will be appropriate for group. 
> 
> Thanks joe k7mks 
>