Review & teardown of Dynamco digital meter

[mikeselectricstuff]

Picked up this at a radio rally (hamfest) today - thought I'd give it a quick review....
 

[pmrlondon]

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...

[Drirr]

nice digital "single" metter  , But be careful with Weston cell. It takes about five days, until Weston cell get stable.

[deephaven]

I like the Dave impersonation at the end! 

[tekfan]

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.

[Frangible]

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! 

[saturation]

Its a beautiful old meter and great video, that you got it working is amazing.  The stuff you get to use is impressive.

[tekfan]

Its a beautiful old meter and great video, that you got it working is amazing.  The stuff you get to use is impressive.

I 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!

[mikeselectricstuff]

Its a beautiful old meter and great video, that you got it working is amazing.  The stuff you get to use is impressive.

I 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!

The 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.

[Mechatrommer]

LOL! i like the video! esp at the end conclusion

[sacherjj]

So is this part of the $50 or $100 multimeter group?   

(And by that I mean the electric bill to operate it.   )

[saturation]

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. 

Its a beautiful old meter and great video, that you got it working is amazing.  The stuff you get to use is impressive.

I 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!

The 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.

[mikeselectricstuff]

So is this part of the $50 or $100 multimeter group?   
(And by that I mean the electric bill to operate it.   )

Well 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...