[time-nuts] Halcyon OFS

[Clint Jay]

It seems I have a hybrid, on the front panel it's an OFS-1, on the serial
number label it's an OFS-1A and on the PCB it's an OFS-2.

http://imgur.com/a/brRou

On 19 June 2017 at 17:40, Ole Stender Nielsen <olstni at mail.tele.dk> wrote:

> I got a Halcyon OFS-1 a while back, and found it was virtually impossible
> to use here in Denmark, which seems to be located too far away from the
> Allouis (162 kHz) or Droitwich (198 kHz) transmitter sites. One major
> design flaw of the OFS-1 is the digital divider used to divide an analog
> signal.
> You can find more information about an experimental modification to
> increase the robustness and usefulness of the OFS-1 here:
> http://dabbledoo.weebly.com/halcyon-ofs-1.html
>
> Best regards
> Ole
>
>
>
> Den 19-06-2017 kl. 17:15 skrev Clint Jay:
>
>> Mine is somewhat different to that model, the case is the same as the
>> leftmost one but the board is quite different to the middle picture.
>>
>> I'll post some links to pictures of the internals and start drawing out
>> the
>> circuit over the coming few days.
>>
>>
>>
>>
>> On 19 June 2017 at 14:29, paul swed <paulswedb at gmail.com> wrote:
>>
>> Great pix can be found here and absolutely can easily be reverse
>>> engineered.
>>> https://www.vintage-radio.net/forum/showthread.php?t=97999
>>> Very simple straight forward design.
>>> Regards
>>> Paul
>>> WB8TSL
>>>
>>> On Mon, Jun 19, 2017 at 9:25 AM, paul swed <paulswedb at gmail.com> wrote:
>>>
>>> Hello to the group. I suspect I will never see such a unit in the states.
>>>> Also it wouldn't be useful.
>>>> But that said its sounds as though its a traditional simple receiver
>>>> that
>>>> should be able to be reverse engineered. At least for the signal and
>>>> locking chain. If a micro is involved then things get fuzzy fast. Anyhow
>>>> good luck with you digging in.
>>>> Regards
>>>> Paul
>>>> WB8TSL
>>>>
>>>> On Mon, Jun 19, 2017 at 8:27 AM, Clint Jay <cjaysharp at gmail.com> wrote:
>>>>
>>>> Thank you Stephen, Nigel, I'll take some pictures of the board in my
>>>>>
>>>> OFS-1
>>>
>>>> but it doesn't match any of the pictures I've tracked down so far.
>>>>>
>>>>> Interesting that the board mounted on the rear of the enclosure with
>>>>> the
>>>>> trimmers appears to be Vero or perf board of some description...
>>>>>
>>>>> On 19 June 2017 at 11:54, Stephen Tompsett (G8LYB) <
>>>>>
>>>> stephen at tompsett.net>
>>>
>>>> wrote:
>>>>>
>>>>> I have a little Halcyon information I managed to find a few years ago
>>>>>> when I acquired a couple of PFS units. It includes a brief document on
>>>>>> OFS alignment.
>>>>>>
>>>>>> I'll mail the documentation to you directly...
>>>>>>
>>>>>>
>>>>>> On 19/06/2017 10:17, Clint Jay wrote:
>>>>>>
>>>>>>> I have been given a Halcyon Electronics OFS1 standard which seems to
>>>>>>>
>>>>>> work,
>>>>>>
>>>>>>> it's a version that has 198KHz and 162KHz selector on the fron and
>>>>>>>
>>>>>> after
>>>>>
>>>>>> a
>>>>>>
>>>>>>> reasonable period of time it displays 'lock' and gives a nicely
>>>>>>>
>>>>>> stable
>>>
>>>> 1,10
>>>>>>
>>>>>>> and 10 MHz output on the front panel BNCs, (I know, it should be 1,5
>>>>>>>
>>>>>> and
>>>>>
>>>>>> 10MHz out, read on)
>>>>>>>
>>>>>>> Does anyone know of a PDF manual? This version has two KHz crystals
>>>>>>>
>>>>>> inside
>>>>>>
>>>>>>> it and I'd like to see how/if it's been modified so a manual with a
>>>>>>> schematic would be even more useful.
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>> Stephen Tompsett (G8LYB)
>>>>>> Tel: 01788 578940
>>>>>> Mob: 07956 855816
>>>>>>
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>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> Clint.
>>>>>
>>>>> *No trees were harmed in the sending of this mail. However, a large
>>>>>
>>>> number
>>>
>>>> of electrons were greatly inconvenienced.*
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>>
>>
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-- 
Clint.

*No trees were harmed in the sending of this mail. However, a large number
of electrons were greatly inconvenienced.*