It's a Friday afternoon job!
On 19/06/2017 18:26, Clint Jay wrote: > 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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) < >>>>>> >>>>> [email protected]> >>>>> 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 >>>>>>> >>>>>>> _______________________________________________ >>>>>>> time-nuts mailing list -- [email protected] >>>>>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>>>>> mailman/listinfo/time-nuts >>>>>>> and follow the instructions there. >>>>>>> >>>>>>> >>>>>> -- >>>>>> Clint. >>>>>> >>>>>> *No trees were harmed in the sending of this mail. However, a large >>>>>> >>>>> number >>>>> of electrons were greatly inconvenienced.* >>>>>> _______________________________________________ >>>>>> time-nuts mailing list -- [email protected] >>>>>> To unsubscribe, go to https://www.febo.com/cgi-bin/m >>>>>> ailman/listinfo/time-nuts >>>>>> and follow the instructions there. >>>>>> >>>>>> >>>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>> mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > > -- Stephen Tompsett _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
