Thread: Codar AT5 TX
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Old 23rd Aug 2020, 8:38 am   #4
G3VKM_Roger
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Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 773
Default Re: Codar AT5 TX

I think you can Ken but beware of really old crystal mics as the crystal material (Rochelle Salt?) absorbs water and then disintegrates. A good test is to see if the mic insert rattles when you shake it! If it does, don't buy it.

A quick eBay search shows some rather pricey new inserts and some well-used mics.

An article I have a copy of, written by Dave/G3UUR, mentions that the 1 megohm resistor from grid to ground on the mike input can be changed for up to 5 Megohm to improve the response, I've not tried that myself. I have a lot of AT5 info if you need anything.

73

Roger/G3VKM
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