GB> Old Resistors
Michael Tauson
wh7hg.hi at GMAIL.COM
Sun Jan 24 01:19:43 EST 2010
On Thu, Jan 21, 2010 at 5:00 PM, Brad Thompson <brad.thompson at valley.net> wrote:
> I've seen axial-lead, white-bodied resistors in post-WW II German-made
> consumer goods. IIRC, the end seals around the leads were brown-colored.
That describes the ones I have nicely. The ones I have come in three
general sizes larger than but mappable to 1/2, 1 and 2 watt carbon
comp resistors. These would have come out of US military equipment
only I have absolutely no clue what it was. From what I've been told
in private email, the ceramic shell is for improved heat dissipation
which makes sense.
Elden sent me a lead to the 1939 Radio Shack catalog and Chuck sent me
the URL for a photo from one of MIT Rad Labs books (Components) that
showed resistors used in the 1940-1945 period. Thank you, gentlemen.
Beyond them, I have a digital copy of the 1936 ARRL handbook that
seems to be able to fill in some more gaps but the dogbones are still
a small problem. It will one day not be a problem.
In any case, progress is being made. :-)
Best regards,
Michael, WH7HG
--
http://www.nationalmssociety.org/chapters/NTH/index.aspx
http://wh7hg.blogspot.com/
http://kludges-other-blog.blogspot.com
Hiki Nô!
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