[time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread Mark C. Stephens
I have recently obtained the holy grail for me - an 8566B. They are rare as hens teeth in Australia! I have a 8568B as well and my phase noise floor is somewhere way down there on that machine ;) However it appears the internal 10Mhz reference had died on the new (old) 8566B. I haven't room on

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread Pete Lancashire
Marc, Run your question by the Yahoo HP-Agilent group -pete On 5/29/13, Mark C. Stephens ma...@non-stop.com.au wrote: I have recently obtained the holy grail for me - an 8566B. They are rare as hens teeth in Australia! I have a 8568B as well and my phase noise floor is somewhere way down

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread ed breya
Before you tear into the OCXO, have you checked to be sure it is properly connected and set up, and its working conditions are right? There must be a BNC jumper on the back to connect the 10 MHz, and the reference selector switch set to internal. Furthermore, the power to the XO section is

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread Mark C. Stephens
? -marki -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of ed breya Sent: Thursday, 30 May 2013 12:08 AM To: time-nuts@febo.com Subject: Re: [time-nuts] 8566B with Ovenaire 10Mhz oven. Before you tear into the OCXO, have you checked

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread Jim Lux
On 5/29/13 7:37 AM, Mark C. Stephens wrote: My 3585 is like that too, Unlocked messages until it warms up. Unless you leave it plugged in, it must keep the oven warm while on standby. I wonder if this is the case for the 8566 too? yes.. most of those instruments have a standby where the oven

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread Frederick Bray
Hi Mark, Did you see this site? This person also had the unlock problem and some others. http://www.jvgavila.com/hp8566a.htm I just worked on an Ovenaire in an old Cushman service monitor. I thought that the oven was bad because it didn't seem warm compared to other OCXO's I have seemed.

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread ed breya
When the unit is up and running, you won't be able to tell if the oven is working from touch - the fan blows right at it. If you open it up and run in standby for a while (an hour or so), it should feel a little warm. Also, of course, check the oven power supply, which should always be on

Re: [time-nuts] 8566B with Ovenaire 10Mhz oven.

2013-05-29 Thread J. L. Trantham
with a scope? Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark C. Stephens Sent: Wednesday, May 29, 2013 5:45 AM To: time-nuts@febo.com Subject: [time-nuts] 8566B with Ovenaire 10Mhz oven. I have recently obtained the holy grail