[Kenwood] With a Turner 454X mic work with a TS120S?

Mon Mar 21 21:54:29 EDT 2011

Hi Mike,
Not only is the impedance wrong, the level is wrong (too high) as well. A typical dynamic microphone looks like a few hundred ohms and around 10mV. A crystal microphone looks like several hundred kilohms and around ten times as much level. And, the gain pot in the TS120S is AFTER the preamp. You may wind up overdriving the preamp with that microphone. Use the right kind of microphone and sell that one to someone with a vacuumm tube boat anchor.
vy 73,
Bryan WA7PRC
--- On Mon, 3/21/11, Mike NX9A wrote:
>> I've picked up an old Turner 454X mic for a couple of bucks
> at a swapfest.
> I will need to change the connector, but the wiring diagram
> is on the 
> bottom,
> so that's not an issue. The issue is that this is a high Z
> crystal mic. 
> Will this
> work or can I build a simple impedance match to get it to
> work with my
> old Kenwood TS-120S?
>> best 73s
> Mike (NX9A)