5071B
Microchip MCHP today announced the next generation oh the 5071. Nice extensive analysis.
Bert Kehren
I've attached a 5071B photo from the web. Quite nice looking. Same specs
(except now RoHS).
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era. Maybe OLED isn't reliable enough yet. They didn't
mess with the red LED display. I converted one of mine to green and
amber. However, the prize goes to Tom Knox for his all-blue version:
https://febo.com/pipermail/time-nuts_lists.febo.com/2023-May/107772.html
https://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230513/46a02b23/attachment.jpeg
The new black theme follows Keysight 'scopes, 3458A, and frequency
counters that I've seen recently. Still waiting for space gray to show
up in the T&F world. Does anyone know what a new 5071 costs these days?
I miss the era of the annual hp catalog. I'm heading to Home Depot for a
can of matte black spray paint to turn a parts-unit 5071A into a B.
/tvb
This would have been the finishing touch
Tom Knox
SR Test and Measurement Engineer
Phoenix Research
4870 Meredith Way Apt 102
Boulder, Co 80303
Formerly of:
357 Fox Lane
Superior Co 80027
303-554-0307
actast@hotmail.com
"Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
From: Tom Van Baak via time-nuts time-nuts@lists.febo.com
Sent: Tuesday, June 13, 2023 9:23 AM
To: time-nuts@lists.febo.com time-nuts@lists.febo.com
Cc: Tom Van Baak tvb@LeapSecond.com
Subject: [time-nuts] Re: 5071B
I've attached a 5071B photo from the web. Quite nice looking. Same specs
(except now RoHS).
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era. Maybe OLED isn't reliable enough yet. They didn't
mess with the red LED display. I converted one of mine to green and
amber. However, the prize goes to Tom Knox for his all-blue version:
https://febo.com/pipermail/time-nuts_lists.febo.com/2023-May/107772.html
https://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230513/46a02b23/attachment.jpeg
The new black theme follows Keysight 'scopes, 3458A, and frequency
counters that I've seen recently. Still waiting for space gray to show
up in the T&F world. Does anyone know what a new 5071 costs these days?
I miss the era of the annual hp catalog. I'm heading to Home Depot for a
can of matte black spray paint to turn a parts-unit 5071A into a B.
/tvb
I think there was a growing requirement for a ROHS 5071A, and Microchip needed to act or lose international sales. And with an instrument as widely accepted as the industry standard 5071A a major concern/fear is any radical departure could risk missing the target of the existing customer base. I think now that Microchip has a ROHS 5071B to support their base this is the time to start development of the next generation "5081A" and when complete release it alongside the 5071B. Once/If the new 5081A achieves 5071B acceptance then phase out the 5071B over the next decade.
My question to all of you, is if you were leading development of the next generation 5081A what design changes would you implement and what new features would you employ?
Perhaps we can get Microsemi to have a contest, and give a new 5081A to the winner for the best ideas. We can always dream.
Cheers;.
Tom Knox
SR Test and Measurement Engineer
Phoenix Research
4870 Meredith Way Apt 102
Boulder, Co 80303
Formerly of:
357 Fox Lane
Superior Co 80027
303-554-0307
actast@hotmail.com
"Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
From: Tom Van Baak via time-nuts time-nuts@lists.febo.com
Sent: Tuesday, June 13, 2023 9:23 AM
To: time-nuts@lists.febo.com time-nuts@lists.febo.com
Cc: Tom Van Baak tvb@LeapSecond.com
Subject: [time-nuts] Re: 5071B
I've attached a 5071B photo from the web. Quite nice looking. Same specs
(except now RoHS).
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era. Maybe OLED isn't reliable enough yet. They didn't
mess with the red LED display. I converted one of mine to green and
amber. However, the prize goes to Tom Knox for his all-blue version:
https://febo.com/pipermail/time-nuts_lists.febo.com/2023-May/107772.html
https://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230513/46a02b23/attachment.jpeg
The new black theme follows Keysight 'scopes, 3458A, and frequency
counters that I've seen recently. Still waiting for space gray to show
up in the T&F world. Does anyone know what a new 5071 costs these days?
I miss the era of the annual hp catalog. I'm heading to Home Depot for a
can of matte black spray paint to turn a parts-unit 5071A into a B.
/tvb
On Tue, June 13, 2023 10:23 am, Tom Van Baak via time-nuts wrote:
Does anyone know what a new 5071 costs these days?
I asked the marketing manager and got the response that 5071B is "the same
as the 5071A-C001 and 5071A-C002. We dont publish the list price, you
have to quote, but in general it is greater than $70k. "
--
Chris Caudle
Tom Van Baak via time-nuts writes:
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era.
I can imagine a couple of places where they really dont want those
colors to change, for reasons of stability and continuity....
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
Len Cutler (5071 project leader) always wanted to do an optically pumped
Cs. But he never could get funding from HP/Agilent. About 5 years ago,
at the funeral for Lou Mueller, I met a manager from Microchip (or maybe
it was Microsemi then) who told me that lasers were still not
sufficiently reliable to use for a Cs beam unit. It is not clear to me
that optical pumping would improve the accuracy/stability either. It
would supposedly improve the Allan deviation. The other possible
improvement to the 5071 would be to make a reversible CBT, like NIST
uses in their big clocks. This is something that seems possible to
improve accuracy. It would obviously be a very big redesign of the CBT,
not to mention the electronics. Also, I don't know if it is possible to
simultaneously run two beams in opposite directions. Also, keeping the
3U size for reversible beams is unlikely.
Rick Karlquist
N6RK
RF Designer on the 5071A project
On 2023-06-13 09:13, Tom Knox via time-nuts wrote:
I think there was a growing requirement for a ROHS 5071A, and Microchip needed to act or lose international sales. And with an instrument as widely accepted as the industry standard 5071A a major concern/fear is any radical departure could risk missing the target of the existing customer base. I think now that Microchip has a ROHS 5071B to support their base this is the time to start development of the next generation "5081A" and when complete release it alongside the 5071B. Once/If the new 5081A achieves 5071B acceptance then phase out the 5071B over the next decade.
My question to all of you, is if you were leading development of the next generation 5081A what design changes would you implement and what new features would you employ?
Perhaps we can get Microsemi to have a contest, and give a new 5081A to the winner for the best ideas. We can always dream.
Cheers;.
Tom Knox
SR Test and Measurement Engineer
Phoenix Research
4870 Meredith Way Apt 102
Boulder, Co 80303
Formerly of:
357 Fox Lane
Superior Co 80027
303-554-0307
actast@hotmail.com
"Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
From: Tom Van Baak via time-nuts time-nuts@lists.febo.com
Sent: Tuesday, June 13, 2023 9:23 AM
To: time-nuts@lists.febo.com time-nuts@lists.febo.com
Cc: Tom Van Baak tvb@LeapSecond.com
Subject: [time-nuts] Re: 5071B
I've attached a 5071B photo from the web. Quite nice looking. Same specs
(except now RoHS).
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era. Maybe OLED isn't reliable enough yet. They didn't
mess with the red LED display. I converted one of mine to green and
amber. However, the prize goes to Tom Knox for his all-blue version:
https://febo.com/pipermail/time-nuts_lists.febo.com/2023-May/107772.html
https://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230513/46a02b23/attachment.jpeg
The new black theme follows Keysight 'scopes, 3458A, and frequency
counters that I've seen recently. Still waiting for space gray to show
up in the T&F world. Does anyone know what a new 5071 costs these days?
I miss the era of the annual hp catalog. I'm heading to Home Depot for a
can of matte black spray paint to turn a parts-unit 5071A into a B.
/tvb
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com
Looks nice but kind of old school. OSA’s 3300 (besides being optical) takes a more modern approach. I can understand the ‘comfort factor’ of the familiar look and feel though.
Von meinem iPhone gesendet
On Jun 13, 2023, at 12:22, Tom Knox via time-nuts time-nuts@lists.febo.com wrote:
I think there was a growing requirement for a ROHS 5071A, and Microchip needed to act or lose international sales. And with an instrument as widely accepted as the industry standard 5071A a major concern/fear is any radical departure could risk missing the target of the existing customer base. I think now that Microchip has a ROHS 5071B to support their base this is the time to start development of the next generation "5081A" and when complete release it alongside the 5071B. Once/If the new 5081A achieves 5071B acceptance then phase out the 5071B over the next decade.
My question to all of you, is if you were leading development of the next generation 5081A what design changes would you implement and what new features would you employ?
Perhaps we can get Microsemi to have a contest, and give a new 5081A to the winner for the best ideas. We can always dream.
Cheers;.
Tom Knox
SR Test and Measurement Engineer
Phoenix Research
4870 Meredith Way Apt 102
Boulder, Co 80303
Formerly of:
357 Fox Lane
Superior Co 80027
303-554-0307
actast@hotmail.com
"Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
From: Tom Van Baak via time-nuts time-nuts@lists.febo.com
Sent: Tuesday, June 13, 2023 9:23 AM
To: time-nuts@lists.febo.com time-nuts@lists.febo.com
Cc: Tom Van Baak tvb@LeapSecond.com
Subject: [time-nuts] Re: 5071B
I've attached a 5071B photo from the web. Quite nice looking. Same specs
(except now RoHS).
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era. Maybe OLED isn't reliable enough yet. They didn't
mess with the red LED display. I converted one of mine to green and
amber. However, the prize goes to Tom Knox for his all-blue version:
https://febo.com/pipermail/time-nuts_lists.febo.com/2023-May/107772.html
https://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230513/46a02b23/attachment.jpeg
The new black theme follows Keysight 'scopes, 3458A, and frequency
counters that I've seen recently. Still waiting for space gray to show
up in the T&F world. Does anyone know what a new 5071 costs these days?
I miss the era of the annual hp catalog. I'm heading to Home Depot for a
can of matte black spray paint to turn a parts-unit 5071A into a B.
/tvb
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com
I’m not a potential costumer, but it seems to me it would be smart to having several slots for hot swappable batteries with a physical barrier that would prevent a battery malfunction from disabling the clock. In the same vein, redundant hot swappable power modules would be smart.
If one made a physics package only small enough to fit into a 3U rack chassis, what other types of clocks could approach 5E-13? A cubic millimeter optical clock isn’t going to cut it, but what if the physics package were a liter in volume?
Or how about designing the physics package in such a way that they cesium can be moved between several locations in some way that allows the tube to regenerate without breaking it open? I’m thinking some sort of valves that could be opened and closed and wicking action not unlike a heat pipe cooler uses as transport.
Even if it took a month, places could simply buy two. Add some extra dollars for the option and avoid having to service them. At 200C the vapor pressure would be about 10Pa, and at 260C about 100Pa.
From: Tom Knox via time-nuts time-nuts@lists.febo.com
Sent: Tuesday, June 13, 2023 11:13:13 AM
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com
Cc: Tom Knox actast@hotmail.com
Subject: [time-nuts] 5071B - and next a 5081A?
I think there was a growing requirement for a ROHS 5071A, and Microchip needed to act or lose international sales. And with an instrument as widely accepted as the industry standard 5071A a major concern/fear is any radical departure could risk missing the target of the existing customer base. I think now that Microchip has a ROHS 5071B to support their base this is the time to start development of the next generation "5081A" and when complete release it alongside the 5071B. Once/If the new 5081A achieves 5071B acceptance then phase out the 5071B over the next decade.
My question to all of you, is if you were leading development of the next generation 5081A what design changes would you implement and what new features would you employ?
Perhaps we can get Microsemi to have a contest, and give a new 5081A to the winner for the best ideas. We can always dream.
Cheers;.
Tom Knox
SR Test and Measurement Engineer
Phoenix Research
4870 Meredith Way Apt 102
Boulder, Co 80303
Formerly of:
357 Fox Lane
Superior Co 80027
303-554-0307
actast@hotmail.com
"Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
From: Tom Van Baak via time-nuts time-nuts@lists.febo.com
Sent: Tuesday, June 13, 2023 9:23 AM
To: time-nuts@lists.febo.com time-nuts@lists.febo.com
Cc: Tom Van Baak tvb@LeapSecond.com
Subject: [time-nuts] Re: 5071B
I've attached a 5071B photo from the web. Quite nice looking. Same specs
(except now RoHS).
They kept the yellow-green LCD, which looks more out of place now both
in color and tech era. Maybe OLED isn't reliable enough yet. They didn't
mess with the red LED display. I converted one of mine to green and
amber. However, the prize goes to Tom Knox for his all-blue version:
https://febo.com/pipermail/time-nuts_lists.febo.com/2023-May/107772.html
https://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230513/46a02b23/attachment.jpeg
The new black theme follows Keysight 'scopes, 3458A, and frequency
counters that I've seen recently. Still waiting for space gray to show
up in the T&F world. Does anyone know what a new 5071 costs these days?
I miss the era of the annual hp catalog. I'm heading to Home Depot for a
can of matte black spray paint to turn a parts-unit 5071A into a B.
/tvb
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com
On 6/13/23 12:16 PM, Ed Marciniak via time-nuts wrote:
I’m not a potential costumer, but it seems to me it would be smart to having several slots for hot swappable batteries with a physical barrier that would prevent a battery malfunction from disabling the clock. In the same vein, redundant hot swappable power modules would be smart.
If one made a physics package only small enough to fit into a 3U rack chassis, what other types of clocks could approach 5E-13? A cubic millimeter optical clock isn’t going to cut it, but what if the physics package were a liter in volume?
The Deep Space Atomic Clock (Hg ion) physics package is about a liter. I
don't know off hand what performance they're actually getting compared
to a Cs, but it's quite good. 3E-15 at tau >50,000 secs..
