DVM from the dark ages

bob91343 · 13th October 2010, 12:08 AM

This was top of the line a half century ago. But it still works! Five digit resolution, AC converter, all in three rack mountable chassis. The Nixie tube readouts are precious...

deathbravo · 13th October 2010, 06:00 AM

it is a very cool meter

davygrvy · 07:57 AM

My dad has an old HP frequency counter with nixies.. I want to rape it to make a clock

WWVB - Wikipedia, the free encyclopedia

jechentau · 13th October 2010, 01:58 PM

or perhaps you may consider it a frequency driven display ;p

bob91343 · 13th October 2010, 05:45 PM

I have two counters like that; they are very good and shouldn't be cannibalized. In fact, if you want to sell that plug-in unit I may be interested in it. I can't quite read the markings on its panel. I believe the counter is a 5245L and I would love to have it, but I'm sure you want too much for it. How about a trade for my digital voltmeter?

davygrvy · 13th October 2010, 07:06 PM

well, it isn't actually that model, but similar and not rack-mount width. That was just a convenient photo I found on the 'net. Sorry..

That one in the photo is a great unit and wouldn't rape it.

bob91343 · 14th October 2010, 12:02 AM

Well one of my counters is in need of a small circuit board. What model do you have? Perhaps it uses that board and we can make a deal. It's a tiny thing maybe the size of a business card, parallel to and close to the front panel on the bottom.

davygrvy · 14th October 2010, 12:05 AM

My dad has it back east. I just remember the looks of it. Any trade would take a long time to fulfill

deathbravo · 15th October 2010, 02:31 AM

Quote:

Originally Posted by jechentau

or perhaps you may consider it a frequency driven display ;p

great idea

bob91343 · 15th October 2010, 05:30 AM

I just played with my good one for a while tonight. Works great, even though these days it's of less value than before. I can read my ham transceiver to 10 Hz and it's pretty solid. Of course I can read the counter much more closely but it's seldom necessary. The real purpose is for fun.

It also has a very good frequency standard in it, with multiple ovens and coarse, medium, and fine frequency adjustments. Keeps warm even when unit switched off.

But I have drifted off topic; once I checked my ancient DVM I took it off the bench and now need to store it for the time when my heirs will toss it in the trash. I have other meters that are plenty accurate.

13th October 2010, 07:49 AM	#3
davygrvy diyAudio Member Join Date: Mar 2007 Location: Richmond, CA Blog Entries: 1	My dad has an old HP frequency counter with nixies.. I want to rape it to make a clock WWVB - Wikipedia, the free encyclopedia __________________ Think out of the box Last edited by davygrvy; 13th October 2010 at 07:57 AM.

13th October 2010, 07:06 PM	#6
davygrvy diyAudio Member Join Date: Mar 2007 Location: Richmond, CA Blog Entries: 1	well, it isn't actually that model, but similar and not rack-mount width. That was just a convenient photo I found on the 'net. Sorry.. That one in the photo is a great unit and wouldn't rape it. __________________ Think out of the box

14th October 2010, 12:05 AM	#8
davygrvy diyAudio Member Join Date: Mar 2007 Location: Richmond, CA Blog Entries: 1	My dad has it back east. I just remember the looks of it. Any trade would take a long time to fulfill __________________ Think out of the box

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13th October 2010, 06:00 AM	#2
deathbravo diyAudio Member Join Date: Jun 2010	it is a very cool meter

13th October 2010, 01:58 PM	#4
jechentau diyAudio Member Join Date: Feb 2005 Location: Gelderland	or perhaps you may consider it a frequency driven display ;p

13th October 2010, 05:45 PM	#5
bob91343 diyAudio Member Join Date: Mar 2010	I have two counters like that; they are very good and shouldn't be cannibalized. In fact, if you want to sell that plug-in unit I may be interested in it. I can't quite read the markings on its panel. I believe the counter is a 5245L and I would love to have it, but I'm sure you want too much for it. How about a trade for my digital voltmeter?

14th October 2010, 12:02 AM	#7
bob91343 diyAudio Member Join Date: Mar 2010	Well one of my counters is in need of a small circuit board. What model do you have? Perhaps it uses that board and we can make a deal. It's a tiny thing maybe the size of a business card, parallel to and close to the front panel on the bottom.

15th October 2010, 05:30 AM	#10
bob91343 diyAudio Member Join Date: Mar 2010	I just played with my good one for a while tonight. Works great, even though these days it's of less value than before. I can read my ham transceiver to 10 Hz and it's pretty solid. Of course I can read the counter much more closely but it's seldom necessary. The real purpose is for fun. It also has a very good frequency standard in it, with multiple ovens and coarse, medium, and fine frequency adjustments. Keeps warm even when unit switched off. But I have drifted off topic; once I checked my ancient DVM I took it off the bench and now need to store it for the time when my heirs will toss it in the trash. I have other meters that are plenty accurate.

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