[Boatanchors] HP-8708A Synchronizer?

[David C. Hallam]

Ian,

I have a 606B and a synchronizer.  Now that my 606B is working properly, 
I will get an idea of how well it works.  I had to replace filter 
capacitors in the power supply.  That was a PITA job as the capacitors 
are somewhat unusual.  The can is insulated and the negative is not 
connected to the can. The ripple was way out of spec and the 606B 
frequency wouldn't stabilize.

I do have a manual for it.

David
KW4DH

On 3/30/2014 9:04 PM, Ian Wilson wrote:
> Thanks, Richard (and others who have replied similarly).
>
> There appear to be two 8708 manual versions available through ArTek (who I
> had
> never heard of until a few minutes ago). I will do that if I can't find the
> info floating
> around somewhere.
>
> 73, ian K3IMW
>
>
>
> On Sun, Mar 30, 2014 at 5:54 PM, Richard Knoppow <1oldlens1 at ix.netcom.com>wrote:
>
>> ----- Original Message ----- From: "Ian Wilson" <ianmwilson73 at gmail.com>
>> To: <boatanchors at qth.net>
>> Sent: Sunday, March 30, 2014 3:25 PM
>> Subject: [Boatanchors] HP-8708A Synchronizer?
>>
>>
>>
>>   Recently acquired an HP-606B signal generator. Although my initial
>>> impression is that this is probably stable enough for most of my needs,
>>> the 'Synchronizer' sounds like an interesting box.
>>>
>>> I would guess that this is some sort of comb generator combined with
>>> a mixer-type phase detector that forms a weakly-locked PLL. Would be
>>> interesting to find a manual (no luck so far, not on BAMA, not on the HP
>>> historical sites that I've looked at). Would be glad of any info.
>>>
>>> There are a couple of these units on eBay but they are going for much
>>> more than I paid for my 606B :)
>>>
>>> 73, ian K3IMW
>>>
>>      Try  ArtekManuals.com  not free but excellent reproductions. He may
>> have it.
>>
>>
>> --
>> Richard Knoppow
>> Los Angeles
>> WB6KBL
>> dickburk at ix.netcom.com
>>
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