[time-nuts] time-nuts Digest, Vol 169, Issue 40 SRD ideas

Chicken Time chickenclocks at outlook.com
Thu Aug 30 13:30:22 EDT 2018


Hi,  Gunn diodes idea sound like an interesting experiment.  For the moment I won't be able to as I don't have the time, but I'll definitely keep this idea in mind.   Thanks for sharing it!
Dan
PS. Always too busy, never enough time. Perhaps it's why messing with clocks..?

-Chickens are more obsessed with time than Humans. Proof: Clock Clock clock
________________________________
From: time-nuts <time-nuts-bounces at lists.febo.com> on behalf of Andre <Andre at Lanoe.net>
Sent: Thursday, August 30, 2018 3:27 AM
To: time-nuts at lists.febo.com
Subject: Re: [time-nuts] time-nuts Digest, Vol 169, Issue 40 SRD ideas

Hi, if its of any help I (still) have a box of goodies including some 10 and 22 GHz Gunnplexers. would the diodes be of any use?

The RX (IIRC its a varactor) diode is structurally very similar to an SRD,  maybe possible to adapt it if as I expect the resonance is tuned to near 6 GHz by "cooking" it under controlled conditions.
If its a close harmonic the diode might pull fine.

I think the parameters would need tuning but I have four (!) of them and some other bits which you are welcome to test.


Joe Gwinn


> Regards
> Paul
> WB8TSL
>
> On Mon, Aug 27, 2018 at 8:03 PM, ed breya <eb at telight.com> wrote:
>
>> I forgot to mention:
>>
>> If you've been diagnosing by swapping parts, be aware that changing the A3
>> is the same as changing the SRD - they won't necessarily match anymore, so
>> would need adjustment.
>>
>> Maybe your original SRD was just fine, but the whole set needed
>> adjustment. Who knows what may have been tweaked or mis-tweaked by
>> individuals working on it previously. If the original SRD is intact, just
>> check to see if it's still a diode (should look the same as a regular Si
>> diode, with maybe a little higher forward voltage drop). If so, it's
>> probably OK and can be returned to service.
>>
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