[time-nuts] Re: HP105B
The clip on vacuum tube ammeter might be in contention. Rick N6RK On 1/16/2022 2:25 PM, Magnus Danielson via time-nuts wrote: Hi, No, not for HP. The HP200A through D products where separate products for 8 years, then the 200A and 200B was merged to the 200AB and the 200C and 200D merged into 200CD that was running for 37 years, totaling in 45 years of continuous production. Not bad for a tube-based oscillator. The numbers are from the top of my head, but was featured in an HP PR-article, where they where proud of this fact, even after breaking out Agilent. Someone can probably do the research and correct details, but I distinctly recall the 45 total years. Cheers, Magnus On 2022-01-16 22:18, Louis Taber wrote: Hi All, The HP 105B is in the HP catalogs for a 33 year period, 1968 through 2000. That is a 33 year run. Is this an HP/Agilent/Keysight record? Does anyone know how the newer units were fabricated? It is just barely mentioned in the year 2000 catalog. The price went up from $1800 to $9700 in 26 years. About 5.5 times the original price. I wonder what the price was in 2000. I was looking at the old HP catalogs at http://hparchive.com/hp_catalogs for the HP105B Quartz Oscillator. The 1967 catalog has the 106A and 107AR/BR on page 538, but no 105A/B 1968 $1800 p594-597 1969 $1800 p648-651 1970 $1800 p624 1972 $1950 p237 1973 $2145 p284 1974 No catalog or supplement published 1975 $2470 p287 1976 $2725 p276 1977 $2950 p274 1978 $3250 p300 1979 $3500 p282 1980 $3750 p284 1981 Not listed 1982 $5750 p307 1983 No price p281 1984 No price p275 1986 $5800 p257 1987 $6400 p340 1988 $6800 p467 1989 $7500 p487 1990 $8600 p491 1991 $9000 p510 1992 $9500 p556 1993 $9700 p498 1994/5/6 No catalog on the site. 1997 No price p493 1998 No price p503 1999 No price p508 2000 "The HP 105B quartz frequency standard uses the HP 10811D and is available as a complete standalone instrument." p 491 ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: HP105B
Magnus is correct. One additional bit of trivia: HP’s last tube-based instrument was the 428B DC Milliameter. It was made for another year or so after the 200CD was finally dropped. So many military and industrial contracts were written specifying these instruments that customers insisted they stay in production, so the contractors didn’t have to re-qualify (or whatever the procedure was) their whole contract. HP said, hey, if you wanna pay… On Sun, Jan 16, 2022 at 2:35 PM Magnus Danielson via time-nuts < time-nuts@lists.febo.com> wrote: > Hi, > > No, not for HP. The HP200A through D products where separate products > for 8 years, then the 200A and 200B was merged to the 200AB and the 200C > and 200D merged into 200CD that was running for 37 years, totaling in 45 > years of continuous production. Not bad for a tube-based oscillator. The > numbers are from the top of my head, but was featured in an HP > PR-article, where they where proud of this fact, even after breaking out > Agilent. Someone can probably do the research and correct details, but I > distinctly recall the 45 total years. > > Cheers, > Magnus > > On 2022-01-16 22:18, Louis Taber wrote: > > Hi All, > > > > The HP 105B is in the HP catalogs for a 33 year period, 1968 through > > 2000. That is a 33 year run. Is this an HP/Agilent/Keysight record? > > Does anyone know how the newer units were fabricated? > > > > It is just barely mentioned in the year 2000 catalog. The price went up > > from $1800 to $9700 in 26 years. About 5.5 times the original price. I > > wonder what the price was in 2000. > > > > I was looking at the old HP catalogs at http://hparchive.com/hp_catalogs > > for the HP105B Quartz Oscillator. The 1967 catalog has the 106A and > > 107AR/BR on page 538, but no 105A/B > > > > 1968 $1800 p594-597 > > 1969 $1800 p648-651 > > 1970 $1800 p624 > > 1972 $1950 p237 > > 1973 $2145 p284 > > 1974 No catalog or supplement published > > 1975 $2470 p287 > > 1976 $2725 p276 > > 1977 $2950 p274 > > 1978 $3250 p300 > > 1979 $3500 p282 > > 1980 $3750 p284 > > 1981 Not listed > > 1982 $5750 p307 > > 1983 No price p281 > > 1984 No price p275 > > 1986 $5800 p257 > > 1987 $6400 p340 > > 1988 $6800 p467 > > 1989 $7500 p487 > > 1990 $8600 p491 > > 1991 $9000 p510 > > 1992 $9500 p556 > > 1993 $9700 p498 > > 1994/5/6 No catalog on the site. > > 1997 No price p493 > > 1998 No price p503 > > 1999 No price p508 > > 2000 "The HP 105B quartz frequency standard uses the HP 10811D and is > > available as a complete standalone instrument." p 491 > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe > send an email to time-nuts-le...@lists.febo.com > > To unsubscribe, go to and follow the instructions there. > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > -- Jeremy Nichols Sent from my iPad 6. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: HP105B
Hi, No, not for HP. The HP200A through D products where separate products for 8 years, then the 200A and 200B was merged to the 200AB and the 200C and 200D merged into 200CD that was running for 37 years, totaling in 45 years of continuous production. Not bad for a tube-based oscillator. The numbers are from the top of my head, but was featured in an HP PR-article, where they where proud of this fact, even after breaking out Agilent. Someone can probably do the research and correct details, but I distinctly recall the 45 total years. Cheers, Magnus On 2022-01-16 22:18, Louis Taber wrote: Hi All, The HP 105B is in the HP catalogs for a 33 year period, 1968 through 2000. That is a 33 year run. Is this an HP/Agilent/Keysight record? Does anyone know how the newer units were fabricated? It is just barely mentioned in the year 2000 catalog. The price went up from $1800 to $9700 in 26 years. About 5.5 times the original price. I wonder what the price was in 2000. I was looking at the old HP catalogs at http://hparchive.com/hp_catalogs for the HP105B Quartz Oscillator. The 1967 catalog has the 106A and 107AR/BR on page 538, but no 105A/B 1968 $1800 p594-597 1969 $1800 p648-651 1970 $1800 p624 1972 $1950 p237 1973 $2145 p284 1974 No catalog or supplement published 1975 $2470 p287 1976 $2725 p276 1977 $2950 p274 1978 $3250 p300 1979 $3500 p282 1980 $3750 p284 1981 Not listed 1982 $5750 p307 1983 No price p281 1984 No price p275 1986 $5800 p257 1987 $6400 p340 1988 $6800 p467 1989 $7500 p487 1990 $8600 p491 1991 $9000 p510 1992 $9500 p556 1993 $9700 p498 1994/5/6 No catalog on the site. 1997 No price p493 1998 No price p503 1999 No price p508 2000 "The HP 105B quartz frequency standard uses the HP 10811D and is available as a complete standalone instrument." p 491 ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] HP105B
Hi All, The HP 105B is in the HP catalogs for a 33 year period, 1968 through 2000. That is a 33 year run. Is this an HP/Agilent/Keysight record? Does anyone know how the newer units were fabricated? It is just barely mentioned in the year 2000 catalog. The price went up from $1800 to $9700 in 26 years. About 5.5 times the original price. I wonder what the price was in 2000. I was looking at the old HP catalogs at http://hparchive.com/hp_catalogs for the HP105B Quartz Oscillator. The 1967 catalog has the 106A and 107AR/BR on page 538, but no 105A/B 1968 $1800 p594-597 1969 $1800 p648-651 1970 $1800 p624 1972 $1950 p237 1973 $2145 p284 1974 No catalog or supplement published 1975 $2470 p287 1976 $2725 p276 1977 $2950 p274 1978 $3250 p300 1979 $3500 p282 1980 $3750 p284 1981 Not listed 1982 $5750 p307 1983 No price p281 1984 No price p275 1986 $5800 p257 1987 $6400 p340 1988 $6800 p467 1989 $7500 p487 1990 $8600 p491 1991 $9000 p510 1992 $9500 p556 1993 $9700 p498 1994/5/6 No catalog on the site. 1997 No price p493 1998 No price p503 1999 No price p508 2000 "The HP 105B quartz frequency standard uses the HP 10811D and is available as a complete standalone instrument." p 491 ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Dense pressure data of the last 24h and the next 48h
Moin, Not really a time-nuts thing, but sciency, still: You might have heard by now, that yesterday around 4:26 UTC there was a massive volcanic eruption in Tonga. Big enough to be visible on my barometric measurements all around the globe. The primary peak is nicely visible, but the secondary from the shock-wave going the other way around, about 7h later is quite a bit smaller. Now I would like to lift this out of the noise and thus I am looking for some more barometric data recorded in Europe. I can't be the only one who does record that every minute, am I? ;-) Especially, I would like to capture when the shock-wave comes around the earth a second time, which will be probably burried in the daily fluctuations we have. Attila Kinali -- Science is made up of so many things that appear obvious after they are explained. -- Pardot Kynes ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
