What is this?
Mar 7, 2019 11:16:48 #
MCHUGH
Loc: Jacksonville, Texas
I was going through a box of old Photographic items from an old studio I purchased back in 1980 and had stored all these years. I found this and have no idea what it is, what it was use on, or how it was use. I am sure that one of the UHH members will be able to help me identify what it is. Thanks for any help you can give me.
Mar 7, 2019 11:20:22 #
Mar 7, 2019 11:23:37 #
My guess would be some kind of variable lighting control.
If there are no other cables/plugs other than shown (power cannot go in), may be a battery.
Not sure how it would get charged though.
I'd expect a cable to plug it into an outlet. But I would not do that!
If there are no other cables/plugs other than shown (power cannot go in), may be a battery.
Not sure how it would get charged though.
I'd expect a cable to plug it into an outlet. But I would not do that!
Mar 7, 2019 11:26:20 #
Mar 7, 2019 11:28:56 #
MCHUGH
Loc: Jacksonville, Texas
I thought of that but for that it would need a input and out put. The only place to plug something into it is the place at the top as seen in the photo. I ran a continuity check on it and there is continuity at the plug in the top.
Mar 7, 2019 11:31:49 #
Globe industries manufactured miniature DC motors, this is likely a motor control.
Mar 7, 2019 11:33:37 #
MCHUGH
Loc: Jacksonville, Texas
A regular male attachment cap will plug into it but I agree I will not put power to it. The studio that I bought was very old and used an assortment of lighting both flash and bulb.
Mar 7, 2019 11:33:51 #
MCHUGH wrote:
I thought of that but for that it would need a input and out put. The only place to plug something into it is the place at the top as seen in the photo. I ran a continuity check on it and there is continuity at the plug in the top.
The output would be the plug at the top, possibly to a light.
The potentiometer would control the amount of voltage to the light.
(Mark indicates where the user wanted it set when in use.)
Could have been batteries.
Not sure how they would get charged though.
Can you get a friend to reverse engineer it looking at the insides?
Mar 7, 2019 11:34:41 #
MCHUGH
Loc: Jacksonville, Texas
That makes sense but how would you attach it with only the one plug on top.
Mar 7, 2019 11:36:11 #
MCHUGH wrote:
That makes sense but how would you attach it with only the one plug on top.
Plug one light into it. (They only used two prongs then.)
Can you get a friend to reverse engineer it looking at the insides?
Mar 7, 2019 11:41:06 #
MCHUGH
Loc: Jacksonville, Texas
Will try the reverse engineering if no one is able to tell me what it is. Did not want to do that if I don't have to. I was in electronic when I was in the Air Force in the late 60's but have forgotten most of the little I knew back then.
Mar 7, 2019 12:27:56 #
letmedance wrote:
Globe industries manufactured miniature DC motors, this is likely a motor control.
Not necessarily. If it is that old, they could no longer provide this piece of equipment and have possibly changed what they manufacture. The original Globe Industries referenced here could also have been purchased or just ceased doing business.
(What would a photography studio be doing with a motor control?)
Mar 7, 2019 12:28:13 #
MCHUGH
Loc: Jacksonville, Texas
Took the 8 screws holding this together and it does have a battery compartment in it. Found a piece of paper with two different size batteries written down on it a 4 1/2 v c battery and a 67 1/2 v b battery. The connectors are different than any I have ever seen, one is a three prong and the other is designed simular to a 9 v battery but about twice the size. Don't have any idea what a photography studio would use this for but it is definitely an adjustable control for something using battery power. Thanks everyone for your help.
Mar 7, 2019 12:31:58 #
MCHUGH wrote:
Took the 8 screws holding this together and it doe... (show quote)
Things built YEARS ago did not have battery compartment lids like they do now. You had to take the unit apart. My guess is still a battery box for variable lighting control. Thus the "Turn off when not in use" to conserve the battery.
BTW - 67v batteries used to be used in old "micro tube" portable radios! Yea, I've seen them when I was MUCH younger! My Dad used to fix radios, phonographs, TVs,...
Mar 7, 2019 12:53:20 #
Looks like transformer that regulated the speed of my old lionel electric train back in 1941!
Dave
Dave
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