[DSP-10] 10 MHz ref

[ww2r at mgef.org]

i have a couple of 10 hour flights coming up...i hope to do the writeup
during them

dave

> At 05:25 AM 2/5/05 , you wrote:
>>I tried using the 1V p-p out of my 10M locked reference and found
>>unreliable operation, so i fed it through a 74ls04 and now use the 5V
>>signal
>>
>>As i got irritated having to take the ez-lite board out every time i
>>wanted to change the link to go from internal to external reference,
>
> ME TOO!
>
>>I used the remaining sections of the 04 to detect when 10MHz is being
>>supplied externally and do the switch over automatically using a small
>> TO5
>>DPDT can relay, at the same time disabling the internal oscillator. Its a
>>small board that fits on the 3 pin oscillator plug under the ezlite
>>enclosure. I must get round to writing it up someday!
>>
>>Dave
> Dave
>
> GREAT IDEA!
>
>   I would be interested in the schematic.  I understand the basic
> principle
> but don't want to reinvent the wheel.
>
> I would like a copy if you can work it up.
>
> Jimmy W7CQ
>
>
>
> Jimmy Oldaker
> 27640 Gibraltar Loop
> Eugene, Oregon 97405
>
> w7cq at teleport.com
> 541-686-8396
>
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