[time-nuts] Setting Osc Frequencies
Bill Janssen
billj at ieee.org
Sat Mar 3 19:22:58 EST 2007
Dr Bruce Griffiths wrote:
> Dr Bruce Griffiths wrote:
>
>> Tom Van Baak wrote:
>>
>>
>>> Don,
>>>
>>> Yes, using an oscilloscope in this way is a time-honored
>>> trick to observe slow changes in relative phase over time.
>>>
>>>
Stuff clipped
>> Tom
>>
>> One could always use an HP K34-5991A (or equivalent phase comparator)
>> connected to a strip chart recorder.
>> Failing that an equivalent device should be easy enough to build and it
>> could be connected to a DVM or other low resolution ADC which in turn is
>> connected to a computer for data logging purposes.
>>
>> Bruce
>>
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>>
>>
> Tom
>
> Additional info on K34-5991A
> Manual available at:
> http://www.to-way.com/k34599a.pdf
>
> Since the circuit uses 2 line receivers, a dual flip flop an exclusive
> or gate and an opamp, designing/building an equivalent instrument should
> be fairly simple.
>
> Bruce
>
I built my own version of this scheme and it works OK but mine has some
"issues"
So I would like to have at least three of these.to replace my one.
Anyone willing to take on the job of designing a circuit board?
I log my results with a A-D converter and my Basic program
Bill K7NOM
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