See: http://en.wikipedia.org/wiki/Crystal_oscillator BVA resonator (Boîtier à Vieillissement Amélioré, Enclosure with Improved Aging), developed in 1976; the parts that influence the vibrations are machined from a single crystal (which reduces the mounting stress), and the electrodes are deposited not on the resonator itself but on inner sides of two condenser discs made of adjacent slices of the quartz from the same bar, forming a three-layer sandwich with no stress between the electrodes and the vibrating element. The gap between the electrodes and the resonator act as two small series capacitors, making the crystal less sensitive to circuit influences. John WA4WDL -------------------------------------------------- From: "Ron Ward" <n6idlron@comcast.net> Sent: Wednesday, September 19, 2012 1:30 PM To: "'Discussion of precise time and frequency measurement'" <time-nuts@febo.com> Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > Hi: > What does BVA stand for? > What is a blue top? > Are HP 10811 "Blue Stripe Replacement" Quarts Oscillators just junk? > What was HP's Blue Stripe Replacement program about? > Thanks, > Ron > > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > Behalf Of Tom Knox > Sent: Wednesday, September 19, 2012 8:38 AM > To: Time-Nuts > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > Hi Bob; > Quartz is of course and art so generally speaking the BVA is great very > close in, but at 1Hz they do not have much if any better performance. And > further out the Wenzel's noise floor is about 20dB below the BVA . Factor > in > that the Blue Top cost(appr $6000) is about 1/4 of a BVA (appr$25000) and > it > seems almost cheap. I response to an eariler question I think corning > makes > most of HP's 10811 era and Wenzel Blanks. I wish I could find a couple > Blue > Tops at a reasonable price. and while I am at it I wish I could also find > a > Beach House in New Zealand for cheap. > > Thomas Knox > > > >> From: lists@rtty.us >> To: time-nuts@febo.com >> Date: Wed, 19 Sep 2012 10:56:44 -0400 >> Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals >> >> Hi >> >> For a time standard crystal, the real question is "how much room do you >> have?". If volume / power / cost is not a concern, there are a lot of >> ways >> you could go. The market has moved away from the big old beasts mainly >> because people simply don't have the room for them any more. >> >> That said, a BVA running on a 5th overtone at about 1 MHz in a 4" or so >> glass bottle likely would do pretty well. I suspect you could get a batch >> made for around $1M. >> >> Bob >> >> -----Original Message----- >> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On >> Behalf Of Tom Knox >> Sent: Wednesday, September 19, 2012 10:47 AM >> To: Time-Nuts >> Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals >> >> >> Ron; >> I think the Wenzel Blue Tops are very good. >> >> Thomas Knox >> >> >> >> > From: n6idlron@comcast.net >> > To: time-nuts@febo.com >> > Date: Tue, 18 Sep 2012 22:31:25 -0700 >> > Subject: [time-nuts] HP-106 and Sulzer Quartz Crystals >> > >> > Hi: >> > >> > Does anyone know who made the crystal for the HP-106 and / or Sulzer >> > oscillators? >> > >> > >> > >> > Is Bliley Electric Company still in business? They use to sell a 5th >> > overtone precision quartz crystal for "frequency standard" use. >> > >> > >> > >> > Where could you find the ultimate crystal today for a frequency > standard? >> > >> > >> > >> > Thanks, >> > >> > Ron >> > >> > >> > >> > _______________________________________________ >> > 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 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 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 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 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. >

The BVA is the designers initials Boîtier à Vieillissement Amélioré. What makes it unique is the there is no metal contacting the quartz to lower the Q, It is capacitive/electrostatic coupled. This design allows fantastic close in Phase Noise, but a high noise floor. They are a thing of beauty. Thomas Knox > From: n6idlron@comcast.net > To: time-nuts@febo.com > Date: Wed, 19 Sep 2012 10:30:16 -0700 > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > Hi: > What does BVA stand for? > What is a blue top? > Are HP 10811 "Blue Stripe Replacement" Quarts Oscillators just junk? > What was HP's Blue Stripe Replacement program about? > Thanks, > Ron > > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > Behalf Of Tom Knox > Sent: Wednesday, September 19, 2012 8:38 AM > To: Time-Nuts > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > Hi Bob; > Quartz is of course and art so generally speaking the BVA is great very > close in, but at 1Hz they do not have much if any better performance. And > further out the Wenzel's noise floor is about 20dB below the BVA . Factor in > that the Blue Top cost(appr $6000) is about 1/4 of a BVA (appr$25000) and it > seems almost cheap. I response to an eariler question I think corning makes > most of HP's 10811 era and Wenzel Blanks. I wish I could find a couple Blue > Tops at a reasonable price. and while I am at it I wish I could also find a > Beach House in New Zealand for cheap. > > Thomas Knox > > > > > From: lists@rtty.us > > To: time-nuts@febo.com > > Date: Wed, 19 Sep 2012 10:56:44 -0400 > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > Hi > > > > For a time standard crystal, the real question is "how much room do you > > have?". If volume / power / cost is not a concern, there are a lot of ways > > you could go. The market has moved away from the big old beasts mainly > > because people simply don't have the room for them any more. > > > > That said, a BVA running on a 5th overtone at about 1 MHz in a 4" or so > > glass bottle likely would do pretty well. I suspect you could get a batch > > made for around $1M. > > > > Bob > > > > -----Original Message----- > > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > > Behalf Of Tom Knox > > Sent: Wednesday, September 19, 2012 10:47 AM > > To: Time-Nuts > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > Ron; > > I think the Wenzel Blue Tops are very good. > > > > Thomas Knox > > > > > > > > > From: n6idlron@comcast.net > > > To: time-nuts@febo.com > > > Date: Tue, 18 Sep 2012 22:31:25 -0700 > > > Subject: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > Hi: > > > > > > Does anyone know who made the crystal for the HP-106 and / or Sulzer > > > oscillators? > > > > > > > > > > > > Is Bliley Electric Company still in business? They use to sell a 5th > > > overtone precision quartz crystal for "frequency standard" use. > > > > > > > > > > > > Where could you find the ultimate crystal today for a frequency > standard? > > > > > > > > > > > > Thanks, > > > > > > Ron > > > > > > > > > > > > _______________________________________________ > > > 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 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 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 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 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 For enough money, you could indeed take care of the noise floor. One approach would be to phase lock a "cheap" ULN to the BVA. Bob -----Original Message----- From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf Of Tom Knox Sent: Wednesday, September 19, 2012 2:03 PM To: Time-Nuts Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals The BVA is the designers initials Boîtier à Vieillissement Amélioré. What makes it unique is the there is no metal contacting the quartz to lower the Q, It is capacitive/electrostatic coupled. This design allows fantastic close in Phase Noise, but a high noise floor. They are a thing of beauty. Thomas Knox > From: n6idlron@comcast.net > To: time-nuts@febo.com > Date: Wed, 19 Sep 2012 10:30:16 -0700 > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > Hi: > What does BVA stand for? > What is a blue top? > Are HP 10811 "Blue Stripe Replacement" Quarts Oscillators just junk? > What was HP's Blue Stripe Replacement program about? > Thanks, > Ron > > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > Behalf Of Tom Knox > Sent: Wednesday, September 19, 2012 8:38 AM > To: Time-Nuts > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > Hi Bob; > Quartz is of course and art so generally speaking the BVA is great very > close in, but at 1Hz they do not have much if any better performance. And > further out the Wenzel's noise floor is about 20dB below the BVA . Factor in > that the Blue Top cost(appr $6000) is about 1/4 of a BVA (appr$25000) and it > seems almost cheap. I response to an eariler question I think corning makes > most of HP's 10811 era and Wenzel Blanks. I wish I could find a couple Blue > Tops at a reasonable price. and while I am at it I wish I could also find a > Beach House in New Zealand for cheap. > > Thomas Knox > > > > > From: lists@rtty.us > > To: time-nuts@febo.com > > Date: Wed, 19 Sep 2012 10:56:44 -0400 > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > Hi > > > > For a time standard crystal, the real question is "how much room do you > > have?". If volume / power / cost is not a concern, there are a lot of ways > > you could go. The market has moved away from the big old beasts mainly > > because people simply don't have the room for them any more. > > > > That said, a BVA running on a 5th overtone at about 1 MHz in a 4" or so > > glass bottle likely would do pretty well. I suspect you could get a batch > > made for around $1M. > > > > Bob > > > > -----Original Message----- > > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > > Behalf Of Tom Knox > > Sent: Wednesday, September 19, 2012 10:47 AM > > To: Time-Nuts > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > Ron; > > I think the Wenzel Blue Tops are very good. > > > > Thomas Knox > > > > > > > > > From: n6idlron@comcast.net > > > To: time-nuts@febo.com > > > Date: Tue, 18 Sep 2012 22:31:25 -0700 > > > Subject: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > Hi: > > > > > > Does anyone know who made the crystal for the HP-106 and / or Sulzer > > > oscillators? > > > > > > > > > > > > Is Bliley Electric Company still in business? They use to sell a 5th > > > overtone precision quartz crystal for "frequency standard" use. > > > > > > > > > > > > Where could you find the ultimate crystal today for a frequency > standard? > > > > > > > > > > > > Thanks, > > > > > > Ron > > > > > > > > > > > > _______________________________________________ > > > 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 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 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 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 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 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 Bob; Actually a pair of each so you can cross-correlate against your DUT. I think for us Time-Nuts this is the system that differentiates it from a hobby and a disease. Thomas Knox > From: lists@rtty.us > To: time-nuts@febo.com > Date: Wed, 19 Sep 2012 14:07:34 -0400 > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > Hi > > For enough money, you could indeed take care of the noise floor. One > approach would be to phase lock a "cheap" ULN to the BVA. > > Bob > > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > Behalf Of Tom Knox > Sent: Wednesday, September 19, 2012 2:03 PM > To: Time-Nuts > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > The BVA is the designers initials Boîtier à Vieillissement Amélioré. What > makes it unique is the there is no metal contacting the quartz to lower the > Q, It is capacitive/electrostatic coupled. This design allows fantastic > close in Phase Noise, but a high noise floor. They are a thing of beauty. > > Thomas Knox > > > > > From: n6idlron@comcast.net > > To: time-nuts@febo.com > > Date: Wed, 19 Sep 2012 10:30:16 -0700 > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > Hi: > > What does BVA stand for? > > What is a blue top? > > Are HP 10811 "Blue Stripe Replacement" Quarts Oscillators just junk? > > What was HP's Blue Stripe Replacement program about? > > Thanks, > > Ron > > > > -----Original Message----- > > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > > Behalf Of Tom Knox > > Sent: Wednesday, September 19, 2012 8:38 AM > > To: Time-Nuts > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > Hi Bob; > > Quartz is of course and art so generally speaking the BVA is great very > > close in, but at 1Hz they do not have much if any better performance. And > > further out the Wenzel's noise floor is about 20dB below the BVA . Factor > in > > that the Blue Top cost(appr $6000) is about 1/4 of a BVA (appr$25000) and > it > > seems almost cheap. I response to an eariler question I think corning > makes > > most of HP's 10811 era and Wenzel Blanks. I wish I could find a couple > Blue > > Tops at a reasonable price. and while I am at it I wish I could also find > a > > Beach House in New Zealand for cheap. > > > > Thomas Knox > > > > > > > > > From: lists@rtty.us > > > To: time-nuts@febo.com > > > Date: Wed, 19 Sep 2012 10:56:44 -0400 > > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > Hi > > > > > > For a time standard crystal, the real question is "how much room do you > > > have?". If volume / power / cost is not a concern, there are a lot of > ways > > > you could go. The market has moved away from the big old beasts mainly > > > because people simply don't have the room for them any more. > > > > > > That said, a BVA running on a 5th overtone at about 1 MHz in a 4" or so > > > glass bottle likely would do pretty well. I suspect you could get a > batch > > > made for around $1M. > > > > > > Bob > > > > > > -----Original Message----- > > > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > > > Behalf Of Tom Knox > > > Sent: Wednesday, September 19, 2012 10:47 AM > > > To: Time-Nuts > > > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > > > > Ron; > > > I think the Wenzel Blue Tops are very good. > > > > > > Thomas Knox > > > > > > > > > > > > > From: n6idlron@comcast.net > > > > To: time-nuts@febo.com > > > > Date: Tue, 18 Sep 2012 22:31:25 -0700 > > > > Subject: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > > > > > > Hi: > > > > > > > > Does anyone know who made the crystal for the HP-106 and / or Sulzer > > > > oscillators? > > > > > > > > > > > > > > > > Is Bliley Electric Company still in business? They use to sell a 5th > > > > overtone precision quartz crystal for "frequency standard" use. > > > > > > > > > > > > > > > > Where could you find the ultimate crystal today for a frequency > > standard? > > > > > > > > > > > > > > > > Thanks, > > > > > > > > Ron > > > > > > > > > > > > > > > > _______________________________________________ > > > > 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 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 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 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 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 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 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.

Thanks John: WOW, I didn't realize that some oscillators are now at 7X10-14. Thanks, Ron -----Original Message----- From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf Of jmfranke Sent: Wednesday, September 19, 2012 10:48 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals See: http://en.wikipedia.org/wiki/Crystal_oscillator BVA resonator (Boîtier à Vieillissement Amélioré, Enclosure with Improved Aging), developed in 1976; the parts that influence the vibrations are machined from a single crystal (which reduces the mounting stress), and the electrodes are deposited not on the resonator itself but on inner sides of two condenser discs made of adjacent slices of the quartz from the same bar, forming a three-layer sandwich with no stress between the electrodes and the vibrating element. The gap between the electrodes and the resonator act as two small series capacitors, making the crystal less sensitive to circuit influences. John WA4WDL -------------------------------------------------- From: "Ron Ward" <n6idlron@comcast.net> Sent: Wednesday, September 19, 2012 1:30 PM To: "'Discussion of precise time and frequency measurement'" <time-nuts@febo.com> Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > Hi: > What does BVA stand for? > What is a blue top? > Are HP 10811 "Blue Stripe Replacement" Quarts Oscillators just junk? > What was HP's Blue Stripe Replacement program about? > Thanks, > Ron > > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > Behalf Of Tom Knox > Sent: Wednesday, September 19, 2012 8:38 AM > To: Time-Nuts > Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals > > > Hi Bob; > Quartz is of course and art so generally speaking the BVA is great very > close in, but at 1Hz they do not have much if any better performance. And > further out the Wenzel's noise floor is about 20dB below the BVA . Factor > in > that the Blue Top cost(appr $6000) is about 1/4 of a BVA (appr$25000) and > it > seems almost cheap. I response to an eariler question I think corning > makes > most of HP's 10811 era and Wenzel Blanks. I wish I could find a couple > Blue > Tops at a reasonable price. and while I am at it I wish I could also find > a > Beach House in New Zealand for cheap. > > Thomas Knox > > > >> From: lists@rtty.us >> To: time-nuts@febo.com >> Date: Wed, 19 Sep 2012 10:56:44 -0400 >> Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals >> >> Hi >> >> For a time standard crystal, the real question is "how much room do you >> have?". If volume / power / cost is not a concern, there are a lot of >> ways >> you could go. The market has moved away from the big old beasts mainly >> because people simply don't have the room for them any more. >> >> That said, a BVA running on a 5th overtone at about 1 MHz in a 4" or so >> glass bottle likely would do pretty well. I suspect you could get a batch >> made for around $1M. >> >> Bob >> >> -----Original Message----- >> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On >> Behalf Of Tom Knox >> Sent: Wednesday, September 19, 2012 10:47 AM >> To: Time-Nuts >> Subject: Re: [time-nuts] HP-106 and Sulzer Quartz Crystals >> >> >> Ron; >> I think the Wenzel Blue Tops are very good. >> >> Thomas Knox >> >> >> >> > From: n6idlron@comcast.net >> > To: time-nuts@febo.com >> > Date: Tue, 18 Sep 2012 22:31:25 -0700 >> > Subject: [time-nuts] HP-106 and Sulzer Quartz Crystals >> > >> > Hi: >> > >> > Does anyone know who made the crystal for the HP-106 and / or Sulzer >> > oscillators? >> > >> > >> > >> > Is Bliley Electric Company still in business? They use to sell a 5th >> > overtone precision quartz crystal for "frequency standard" use. >> > >> > >> > >> > Where could you find the ultimate crystal today for a frequency > standard? >> > >> > >> > >> > Thanks, >> > >> > Ron >> > >> > >> > >> > _______________________________________________ >> > 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 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 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 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 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 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.

http://leapsecond.com/museum/osa8607/ /tvb (iPhone4) On Sep 19, 2012, at 11:16 AM, "Ron Ward" <n6idlron@comcast.net> wrote: > Thanks John: > WOW, I didn't realize that some oscillators are now at 7X10-14. > Thanks, > Ron >

Ok OK how about a pix of one of these BVAs so I know what to look for at the hamfest.;-) Regards Paul WB8TSL On Wed, Sep 19, 2012 at 2:53 PM, Tom Van Baak (lab) <tvb@leapsecond.com>wrote: > http://leapsecond.com/museum/osa8607/ > > /tvb (iPhone4) > > On Sep 19, 2012, at 11:16 AM, "Ron Ward" <n6idlron@comcast.net> wrote: > > > Thanks John: > > WOW, I didn't realize that some oscillators are now at 7X10-14. > > Thanks, > > Ron > > > > _______________________________________________ > 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. >

Try this: http://www.oscilloquartz.com/file/pdf/2230.pdf upper left corner of the .PDF On Wed, Sep 19, 2012 at 9:12 PM, paul swed <paulswedb@gmail.com> wrote: > Ok OK how about a pix of one of these BVAs so I know what to look for at > the hamfest.;-) > Regards > Paul > WB8TSL > > On Wed, Sep 19, 2012 at 2:53 PM, Tom Van Baak (lab) <tvb@leapsecond.com > >wrote: > > > http://leapsecond.com/museum/osa8607/ > > > > /tvb (iPhone4) > > > > On Sep 19, 2012, at 11:16 AM, "Ron Ward" <n6idlron@comcast.net> wrote: > > > > > Thanks John: > > > WOW, I didn't realize that some oscillators are now at 7X10-14. > > > Thanks, > > > Ron > > > > > > > _______________________________________________ > > 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 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. >

Or, better, this: http://www.oscilloquartz.com/file/pdf/8600.pdf On Wed, Sep 19, 2012 at 9:20 PM, Azelio Boriani <azelio.boriani@screen.it>wrote: > Try this: > http://www.oscilloquartz.com/file/pdf/2230.pdf > upper left corner of the .PDF > > On Wed, Sep 19, 2012 at 9:12 PM, paul swed <paulswedb@gmail.com> wrote: > >> Ok OK how about a pix of one of these BVAs so I know what to look for at >> the hamfest.;-) >> Regards >> Paul >> WB8TSL >> >> On Wed, Sep 19, 2012 at 2:53 PM, Tom Van Baak (lab) <tvb@leapsecond.com >> >wrote: >> >> > http://leapsecond.com/museum/osa8607/ >> > >> > /tvb (iPhone4) >> > >> > On Sep 19, 2012, at 11:16 AM, "Ron Ward" <n6idlron@comcast.net> wrote: >> > >> > > Thanks John: >> > > WOW, I didn't realize that some oscillators are now at 7X10-14. >> > > Thanks, >> > > Ron >> > > >> > >> > _______________________________________________ >> > 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 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. >> > >

Azelio thanks now I know what to look for. Have to say I don't actually ever see oscilloquartz equipment in the US. Now to look under the fleamarket table and grab a 8600 for $5. ;-) Oddly I have picked up some nice oscillators that way and just missed some good ones by other hams. Regards Paul On Wed, Sep 19, 2012 at 3:25 PM, Azelio Boriani <azelio.boriani@screen.it>wrote: > Or, better, this: > http://www.oscilloquartz.com/file/pdf/8600.pdf > > > On Wed, Sep 19, 2012 at 9:20 PM, Azelio Boriani <azelio.boriani@screen.it > >wrote: > > > Try this: > > http://www.oscilloquartz.com/file/pdf/2230.pdf > > upper left corner of the .PDF > > > > On Wed, Sep 19, 2012 at 9:12 PM, paul swed <paulswedb@gmail.com> wrote: > > > >> Ok OK how about a pix of one of these BVAs so I know what to look for at > >> the hamfest.;-) > >> Regards > >> Paul > >> WB8TSL > >> > >> On Wed, Sep 19, 2012 at 2:53 PM, Tom Van Baak (lab) <tvb@leapsecond.com > >> >wrote: > >> > >> > http://leapsecond.com/museum/osa8607/ > >> > > >> > /tvb (iPhone4) > >> > > >> > On Sep 19, 2012, at 11:16 AM, "Ron Ward" <n6idlron@comcast.net> > wrote: > >> > > >> > > Thanks John: > >> > > WOW, I didn't realize that some oscillators are now at 7X10-14. > >> > > Thanks, > >> > > Ron > >> > > > >> > > >> > _______________________________________________ > >> > 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 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 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. >