Re: [time-nuts] Tracor 527A and 10MHz reference input

2017-06-25 Thread David C. Partridge
of precise time and frequency measurement Subject: Re: [time-nuts] Tracor 527A and 10MHz reference input Dave will guess you are sub sampling the 10 Mhz ref. Yes it should be 4.7K. Not sure why but old military gear resistors were like that. Circa 1942 at least in schematics I have seen. Regards Paul

Re: [time-nuts] Tracor 527A and 10MHz reference input

2017-06-25 Thread paul swed
wrote: > Yes, does indeed look like it should be 4K7! > > -Original Message- > From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of David C. > Partridge > Sent: 25 June 2017 18:50 > To: 'Discussion of precise time and frequency measurement' > Subject: [ti

Re: [time-nuts] Tracor 527A and 10MHz reference input

2017-06-25 Thread David C. Partridge
Yes, does indeed look like it should be 4K7! -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of David C. Partridge Sent: 25 June 2017 18:50 To: 'Discussion of precise time and frequency measurement' Subject: [time-nuts] Tracor 527A and 10MHz reference

[time-nuts] Tracor 527A and 10MHz reference input

2017-06-25 Thread David C. Partridge
A friend says his Tracor 527A works fine with a 10MHz Ref input even though it doesn't have the divide by 2 circuit from the addendum to the 527E manual applied. I'm puzzled by this - I can't quite see how the reference input circuit can produce a 5MHz output when fed with 10MHz (unless his