[GreenKeys] Tuning fork looking for a home

Duncan Brown duncanancy at earthlink.net
Sun Nov 24 17:48:04 EST 2019


I should have read the rest of the emails before sending!

I assumed Teletype Corp would have used the same tuning fork for the M28 
as the M15, but now I know better!

Thanks,

Duncan


On 11/24/2019 17:45, Duncan Brown wrote:
> 180 vps is standard for Kleinschmidt and 87.5 is standard for Teletype 
> Corp.
>
> I have a 120 vps tuning fork also, but have never found where it was 
> used.
>
> Duncan
> K2OEQ
>
> On 11/24/2019 12:49, John, W9DDD wrote:
>> What uses a 120 CPS tuning fork?  I've heard of 180 and 87.5ish.
>>
>



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