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Ulf Kylenfall

Sun, May 14, 2017 4:43 PM

What I wanted to know was the differences (specs) betweensome of the 00105 oscillator modules in order tomount the best one in the 5065A which I am trying tobring back to life.
I have a bunch of 10811assy:s and thereare differences in drift, phase noise, etc. Thecoarse frequency adjustment hole does not havethe same coordinates as the 00105 so I will not fitany of these.
Fortunately I have an excellent printed copyof the 5065A manual with all schematics and so on.The manual is printed 1971.
(I found some newer manuals where HP appearentlyhad made some modernisation of modules, replacingregenerative dividers with TTL versions, changedOP-amps into modern versions and so on, but the one at Keysight.com is not readable.)
Otherwise, replacing obsolete components withmodern available ones would be another thing to do.
Digging into the junk bin I found HP original 5065 extender boardsso that I will be able to check the PCB's once the workstarts.
Ulf - SM6GXV

What I wanted to know was the differences (specs) betweensome of the 00105 oscillator modules in order tomount the best one in the 5065A which I am trying tobring back to life. I have a bunch of 10811assy:s and thereare differences in drift, phase noise, etc. Thecoarse frequency adjustment hole does not havethe same coordinates as the 00105 so I will not fitany of these. Fortunately I have an excellent printed copyof the 5065A manual with all schematics and so on.The manual is printed 1971. (I found some newer manuals where HP appearentlyhad made some modernisation of modules, replacingregenerative dividers with TTL versions, changedOP-amps into modern versions and so on, but the one at Keysight.com is not readable.) Otherwise, replacing obsolete components withmodern available ones would be another thing to do. Digging into the junk bin I found HP original 5065 extender boardsso that I will be able to check the PCB's once the workstarts. Ulf - SM6GXV

T

timeok

Sun, May 14, 2017 8:05 PM

Hi Ulf,
in the 10811 version HP mount the 10811-60109, a 10MHZ oscillator with a TTL divider by two to obtain 5MHz as the original circuit require.
The chassis and front panel are the same in the 00105 and 10811 version.
please see the picture below:
http://www.timeok.it/wp-content/uploads/2015/08/DSCN5153.jpg
The coarse tuning are in the same position with the help of a special mount.
The overall HP5065A specification of the two versions are similar.
The 10811 version add the possibility to have a 10M inside the instrument. If you use a buffer you can add a 10M output.
ciao,
luciano
IZ5JHJ

Da "time-nuts" time-nuts-bounces@febo.com
A "time-nuts@febo.com" time-nuts@febo.com
Cc
Data Sun, 14 May 2017 16:43:30 +0000 (UTC)
Oggetto [time-nuts] Regarding the 00105-60xx (Bringing a 5065A back to life)
What I wanted to know was the differences (specs) betweensome of the 00105 oscillator modules in order tomount the best one in the 5065A which I am trying tobring back to life.
I have a bunch of 10811assy:s and thereare differences in drift, phase noise, etc. Thecoarse frequency adjustment hole does not havethe same coordinates as the 00105 so I will not fitany of these.
Fortunately I have an excellent printed copyof the 5065A manual with all schematics and so on.The manual is printed 1971.
(I found some newer manuals where HP appearentlyhad made some modernisation of modules, replacingregenerative dividers with TTL versions, changedOP-amps into modern versions and so on, but the one at Keysight.com is not readable.)
Otherwise, replacing obsolete components withmodern available ones would be another thing to do.
Digging into the junk bin I found HP original 5065 extender boardsso that I will be able to check the PCB's once the workstarts.
Ulf - SM6GXV

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi Ulf, in the 10811 version HP mount the 10811-60109, a 10MHZ oscillator with a TTL divider by two to obtain 5MHz as the original circuit require. The chassis and front panel are the same in the 00105 and 10811 version. please see the picture below: http://www.timeok.it/wp-content/uploads/2015/08/DSCN5153.jpg The coarse tuning are in the same position with the help of a special mount. The overall HP5065A specification of the two versions are similar. The 10811 version add the possibility to have a 10M inside the instrument. If you use a buffer you can add a 10M output. ciao, luciano IZ5JHJ Da "time-nuts" time-nuts-bounces@febo.com A "time-nuts@febo.com" time-nuts@febo.com Cc Data Sun, 14 May 2017 16:43:30 +0000 (UTC) Oggetto [time-nuts] Regarding the 00105-60xx (Bringing a 5065A back to life) What I wanted to know was the differences (specs) betweensome of the 00105 oscillator modules in order tomount the best one in the 5065A which I am trying tobring back to life. I have a bunch of 10811assy:s and thereare differences in drift, phase noise, etc. Thecoarse frequency adjustment hole does not havethe same coordinates as the 00105 so I will not fitany of these. Fortunately I have an excellent printed copyof the 5065A manual with all schematics and so on.The manual is printed 1971. (I found some newer manuals where HP appearentlyhad made some modernisation of modules, replacingregenerative dividers with TTL versions, changedOP-amps into modern versions and so on, but the one at Keysight.com is not readable.) Otherwise, replacing obsolete components withmodern available ones would be another thing to do. Digging into the junk bin I found HP original 5065 extender boardsso that I will be able to check the PCB's once the workstarts. Ulf - SM6GXV _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

BK

Bob kb8tq

Sun, May 14, 2017 11:44 PM

Hi

If you do decide to go with the 105 OCXO’s in your 5065A, you probably will need to test the samples you
have on hand. The selection process that sorted them into groups took place before many Time Nuts were
born. Over that sort of time period, stuff drifts and (possibly) gets better. Even when they were brand new,
there was no guarantee that a “plain spec” unit would actually be worse that a special spec unit.

Bob

On May 14, 2017, at 12:43 PM, Ulf Kylenfall via time-nuts time-nuts@febo.com wrote:

What I wanted to know was the differences (specs) betweensome of the 00105 oscillator modules in order tomount the best one in the 5065A which I am trying tobring back to life.
I have a bunch of 10811assy:s and thereare differences in drift, phase noise, etc. Thecoarse frequency adjustment hole does not havethe same coordinates as the 00105 so I will not fitany of these.
Fortunately I have an excellent printed copyof the 5065A manual with all schematics and so on.The manual is printed 1971.
(I found some newer manuals where HP appearentlyhad made some modernisation of modules, replacingregenerative dividers with TTL versions, changedOP-amps into modern versions and so on, but the one at Keysight.com is not readable.)
Otherwise, replacing obsolete components withmodern available ones would be another thing to do.
Digging into the junk bin I found HP original 5065 extender boardsso that I will be able to check the PCB's once the workstarts.
Ulf - SM6GXV

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi If you do decide to go with the 105 OCXO’s in your 5065A, you probably will need to test the samples you have on hand. The selection process that sorted them into groups took place before many Time Nuts were born. Over that sort of time period, stuff drifts and (possibly) gets better. Even when they were brand new, there was no guarantee that a “plain spec” unit would actually be worse that a special spec unit. Bob > On May 14, 2017, at 12:43 PM, Ulf Kylenfall via time-nuts <time-nuts@febo.com> wrote: > > What I wanted to know was the differences (specs) betweensome of the 00105 oscillator modules in order tomount the best one in the 5065A which I am trying tobring back to life. > I have a bunch of 10811assy:s and thereare differences in drift, phase noise, etc. Thecoarse frequency adjustment hole does not havethe same coordinates as the 00105 so I will not fitany of these. > Fortunately I have an excellent printed copyof the 5065A manual with all schematics and so on.The manual is printed 1971. > (I found some newer manuals where HP appearentlyhad made some modernisation of modules, replacingregenerative dividers with TTL versions, changedOP-amps into modern versions and so on, but the one at Keysight.com is not readable.) > Otherwise, replacing obsolete components withmodern available ones would be another thing to do. > Digging into the junk bin I found HP original 5065 extender boardsso that I will be able to check the PCB's once the workstarts. > Ulf - SM6GXV > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

time-nuts@lists.febo.com

Regarding the 00105-60xx (Bringing a 5065A back to life)