Probes

[Garey Barrell]

Some of the early Heath test equipment had "pin" jacks (solid tips 
~3/32" dia. used on headphones, primarily) rather than "banana" jacks 
(center pin with four bowed, springy outer shell pieces.)   The photo of 
the O-5 in the 1950 Heath catalog isn't clear enough to tell for sure.

There are also at least two sizes of "banana" plugs, one slightly 
smaller than the "standard" size.

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
<http://hr99.home.mindspring.com/R-4C_Servicez/> 



>
> I received your address from a Heath owner who says maybe you can 
> answer a question for me: I have a 1950 HeathKit Oscilloscope Model 
> 0-5, no matter what type of male end probes I get they just don't seem 
> to fit. I have purchased 11 different ones and all seem to big to put 
> into the plug-ins. Any ideas,  or will I have to figure out which 
> female end I need and change the plug-ins on my machine. THANK YOU,
> Phil
> pandc at mailaka.net
>
>

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