Weidenhoff tester

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Model T Ford Forum: Forum 2015: Weidenhoff tester
Top of pagePrevious messageNext messageBottom of page Link to this message  By Randall Strickland, Lambsburg Va on Sunday, March 22, 2015 - 09:24 pm:

Anyone know anything about this tester?,was going to use meters on a generator tester I am building,also the functions of the three knobs? Thanks Randall


Top of pagePrevious messageNext messageBottom of page Link to this message  By John F. Regan on Monday, March 23, 2015 - 09:36 am:

Pure guess is that because of the dual ranges of each gauge, likely any 2 position switch would be to change the range of one or both of the gauges. In the era that this would be used there would not have existed any automatic change of the ranges of the meter. The left meter is a voltmeter of course and has was likely for 6V (top range) and 12V (bottom range). Right meter is an ammeter and would have a high and low range setting switch which might have been a really heavy duty switch unless you also had to change the ammeter connections for each range which is a common way to do it. A switch that can change the range on an ammeter without changing the wiring can sometimes be a really heavy duty switch given the 60 amp range.


Top of pagePrevious messageNext messageBottom of page Link to this message  By John F. Regan on Monday, March 23, 2015 - 09:39 am:

Pure guess is that because of the dual ranges of each gauge, likely any 2 position switch would be to change the range of one or both of the gauges. In the era that this would be used there would not have existed any automatic change of the ranges of the meter. The left meter is a voltmeter of course and was likely for 6V (top range) and 12V (bottom range). Right meter is an ammeter and would have a high and low range setting switch which might have been a really heavy duty switch unless you also had to change the ammeter connections for each range which is a common way to do it. A switch that can change the range on an ammeter without changing the wiring can sometimes be a really heavy duty switch given the 60 amp range. A third switch may have been a "polarity" switch to allow you to reverse the polarity (positive ground/negative ground) polarity. If you can accurately trace the wiring you can determine what is what. I repeat I am just giving you an educated guess at this point.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dennis Seth - Ohio on Monday, March 23, 2015 - 12:51 pm:

Cool,

Duel meters, duel ranges, and duel answers. :-)


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dennis Seth - Ohio on Monday, March 23, 2015 - 12:53 pm:

Should be "DUAL" :-(


Top of pagePrevious messageNext messageBottom of page Link to this message  By Peter C. Strebeck on Monday, March 23, 2015 - 12:56 pm:

That is a Weidenhoff Model 725 Volt/Amp Tester. The front plate should be white, and depending on the year the lettering around the switches and terminals would be black or red. The terminal screws and posts should all be nickel plated. I had one for a lot of years and sold it at a swap meet a few years back. If you Google it you should be able to find a manual and some photos.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Randall Strickland, Lambsburg Va on Monday, March 23, 2015 - 01:54 pm:

Played around with it today volt switch has four position , off 0-10 10-20,pos and neg ground
Middle knob is a 100 watt rheostat connected to amp meter


Top of pagePrevious messageNext messageBottom of page Link to this message  By Randall Strickland, Lambsburg Va on Monday, March 23, 2015 - 08:32 pm:

backside


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