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Discussion of precise time and frequency measurement

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Hopf 7001 needs a new home

JM
John Miller
Wed, Aug 9, 2023 1:29 PM

Hi All,
About seven or eight years ago, at the beginning of my time-nuttery, I picked up a Hopf 7001, largely for aesthetic reasons. It had lived in the rack in my office until last spring, when we did some reorganizing and I ended up moving the rack to the basement. My ears appreciate the change, but unfortunately I no longer get to look at the beautiful VFD on the 7001.

It doesn't make sense for me to keep it, at this point. I figure someone in this group would be able to appreciate such a device - so if you're interested, please send me an offer.

I have photos of it here: https://photos.millerjs.org/?f=Hopf+7001 (a few from this morning and a few from last year when I first thought about re-homing it, but chickened out).

Despite being 22 years old, it doesn't seem to have any problems with leap seconds and displays the correct time and date - with a good antenna and sky view it gets a lock within about 20 minutes of booting up. It has a DC-DC power supply (accepting 18-36v input) and an RS-232 interface card. It can also simulate DCF77 I believe, I always wanted to get a European radio clock and test this but I never got around to it.

If you have any questions please let me know.

Regards,
John Miller
K1QLN

Hi All, About seven or eight years ago, at the beginning of my time-nuttery, I picked up a Hopf 7001, largely for aesthetic reasons. It had lived in the rack in my office until last spring, when we did some reorganizing and I ended up moving the rack to the basement. My ears appreciate the change, but unfortunately I no longer get to look at the beautiful VFD on the 7001. It doesn't make sense for me to keep it, at this point. I figure someone in this group would be able to appreciate such a device - so if you're interested, please send me an offer. I have photos of it here: https://photos.millerjs.org/?f=Hopf+7001 (a few from this morning and a few from last year when I first thought about re-homing it, but chickened out). Despite being 22 years old, it doesn't seem to have any problems with leap seconds and displays the correct time and date - with a good antenna and sky view it gets a lock within about 20 minutes of booting up. It has a DC-DC power supply (accepting 18-36v input) and an RS-232 interface card. It can also simulate DCF77 I believe, I always wanted to get a European radio clock and test this but I never got around to it. If you have any questions please let me know. Regards, John Miller K1QLN
JM
John Miller
Wed, Aug 9, 2023 6:14 PM

Thanks for the interest all! It has been spoken for.

Regards,
John
K1QLN

On Aug 9, 2023, at 9:29 AM, John Miller via time-nuts time-nuts@lists.febo.com wrote:

Hi All,
About seven or eight years ago, at the beginning of my time-nuttery, I picked up a Hopf 7001, largely for aesthetic reasons. It had lived in the rack in my office until last spring, when we did some reorganizing and I ended up moving the rack to the basement. My ears appreciate the change, but unfortunately I no longer get to look at the beautiful VFD on the 7001.

It doesn't make sense for me to keep it, at this point. I figure someone in this group would be able to appreciate such a device - so if you're interested, please send me an offer.

I have photos of it here: https://photos.millerjs.org/?f=Hopf+7001 (a few from this morning and a few from last year when I first thought about re-homing it, but chickened out).

Despite being 22 years old, it doesn't seem to have any problems with leap seconds and displays the correct time and date - with a good antenna and sky view it gets a lock within about 20 minutes of booting up. It has a DC-DC power supply (accepting 18-36v input) and an RS-232 interface card. It can also simulate DCF77 I believe, I always wanted to get a European radio clock and test this but I never got around to it.

If you have any questions please let me know.

Regards,
John Miller
K1QLN


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Thanks for the interest all! It has been spoken for. Regards, John K1QLN > On Aug 9, 2023, at 9:29 AM, John Miller via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi All, > About seven or eight years ago, at the beginning of my time-nuttery, I picked up a Hopf 7001, largely for aesthetic reasons. It had lived in the rack in my office until last spring, when we did some reorganizing and I ended up moving the rack to the basement. My ears appreciate the change, but unfortunately I no longer get to look at the beautiful VFD on the 7001. > > It doesn't make sense for me to keep it, at this point. I figure someone in this group would be able to appreciate such a device - so if you're interested, please send me an offer. > > I have photos of it here: https://photos.millerjs.org/?f=Hopf+7001 (a few from this morning and a few from last year when I first thought about re-homing it, but chickened out). > > Despite being 22 years old, it doesn't seem to have any problems with leap seconds and displays the correct time and date - with a good antenna and sky view it gets a lock within about 20 minutes of booting up. It has a DC-DC power supply (accepting 18-36v input) and an RS-232 interface card. It can also simulate DCF77 I believe, I always wanted to get a European radio clock and test this but I never got around to it. > > If you have any questions please let me know. > > Regards, > John Miller > K1QLN > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com