[time-nuts] FTS 1050A What to do??

[Magnus Danielson]

On 10/08/11 00:14, Bruce Griffiths wrote:
> Paul A. Cianciolo wrote:
>> Hello Folks,
>>
>> In my collection of stuff, I found an FTS 1050a in good condition.
>> It has been sitting for 5 years, and I decided to fire it up last night.
>> It works.
>> Opened it up and took a look inside. The main reference is a large box
>> which I assumed was filled with foam insulation.
>> Everything is screw together, so I decided to take a look inside.
>> A bunch of control electronics, all the normal foam, with the cylinder
>> mounted in the middle of the foam.
>> The cylinder slides out, and Lo and Behold..... The oscillator sits
>> inside a
>> little thermos bottle.
>> A Dewar, I guess its called. I should point out that I am new to this
>> area
>> of electronics and had never seen one of these before.
>> There is a rubber blanket all around the oscillator so it fits snugly
>> into
>> the Dewar.
>> I reassembled it all, with breaking anything and fired it back up again.
>> All is fine.
>>
>> So what the heck am I droning on about??
>>
>> Well here is the deal; this is a special version of the 1050A made for
>> cable
>> television companies.
>> The output is 6.0003 Mhz that fed a comb generator creating harmonics
>> that
>> were the local oscillator reference for each ascending cable TV channel.
>> So as nice as this thing is and I would like to use it..... What do
>> you do
>> with a 6.0003 Mhz frequency Standard.
>> Its not going to tune to 5. 00000 Mhz and its doubtful that the oven
>> can be
>> modified without great expense.
>> Dividing the 6.0003 Mhz doesn't seem feasible.
>> Any suggestions?
>>
>> It very nice to look at maybe I will put it in the rack for aesthetics
>> alone?
>> Bummed
>>
>>
>> Paul A. Cianciolo
>> W1VLF
>> http://www.rescueelectronics.com/
>> Our business computer network is powered exclusively by solar and wind
>> power.
>> Converting Photons to Electrons for over 20 years
> To produce a low phase noise 5MHz + 250Hz offset signal for either a
> DMTD or a DDMTD use a conjugate regenerative divide by 6 to produce both
> 1MHz + 50Hz and 5MHz + 250Hz outputs,
> A pair of mixers a pair of low gain amplifiers and a pair of low Q
> bandpass filters are all that's required.

Yes, this will work and be useful.

Cheers,
Magnus