Review & teardown of Dynamco digital meter - Page 1
Forum section: electronics / general

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: May 23, 2011, 12:35:53 am
content: Picked up this at a radio rally (hamfest) today - thought I'd give it a quick review....

author: pmrlondon
author_rank: Contributor
timestamp: May 23, 2011, 04:55:02 am
content: I'm sure I have seen one of these in a rack in the University College London Institute of Neurology, at the National Hospital. Not seen it operating, but it certainly looked like one of these...

author: Drirr
author_rank: Regular Contributor
timestamp: May 23, 2011, 05:50:36 am
content: nice digital "single" metter, But be careful with Weston cell. It takes about five days, until Weston cell get stable.

author: deephaven
author_rank: Frequent Contributor
timestamp: May 23, 2011, 02:47:29 pm
content: I like the Dave impersonation at the end!

author: tekfan
author_rank: Frequent Contributor
timestamp: May 23, 2011, 03:24:24 pm
content: That's the nicest thing I've seen in a long time. Look at the size of the mains transformer! I wonder what's the power rating of this beast. Maybe they inspired Fluke for the touch-hold thing.

author: Frangible
author_rank: Regular Contributor
timestamp: May 23, 2011, 03:45:00 pm
content: Beautiful! Loved the review. Of course the missing capacitance and transistor testing features that any Chinese DVM has these days would preclude any serious thoughts towards purchasing one!

author: saturation
author_rank: Super Contributor
timestamp: May 23, 2011, 04:20:18 pm
content: Its a beautiful old meter and great video, that you got it working is amazing. The stuff you get to use is impressive.

author: tekfan
author_rank: Frequent Contributor
timestamp: May 23, 2011, 04:54:40 pm
content: Quote from: saturation on May 23, 2011, 04:20:18 pmI don't think much was needed to make it work. Apart from plugging it into the mains. They sure don't make'em like they used to!

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: May 23, 2011, 04:58:52 pm
content: Quote from: tekfan on May 23, 2011, 04:54:40 pmThe only thing I had to do was swap three dead bulbs with unused ones in the first digit display. I did take the precaution of initially winding it up slowly on a variac. AFAICS all the electrolytics are original.

author: Mechatrommer
author_rank: Super Contributor
timestamp: May 23, 2011, 07:36:05 pm
content: LOL! i like the video! esp at the end conclusion

author: sacherjj
author_rank: Frequent Contributor
timestamp: May 23, 2011, 10:37:28 pm
content: So is this part of the $50 or $100 multimeter group?(And by that I mean the electric bill to operate it.)

author: saturation
author_rank: Super Contributor
timestamp: May 23, 2011, 10:53:50 pm
content: Its amazing the thing works without much work in 47 years. Even more the cal certificate is still in the meter and hasn't crumbled to dust! 1967, impressive.Quote from: mikeselectricstuff on May 23, 2011, 04:58:52 pm

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: May 24, 2011, 12:17:07 am
content: Quote from: sacherjj on May 23, 2011, 10:37:28 pmWell I paid £5 for it just for those projection displays, which fetch good prices on ebay from people making retro clocks. Didn't expect the thing to actually work - pity to junk the rest of it but I don't have the space...