[Boatanchors] Postage Stamp Mica Question - SOLVED

J. Forster jfor at quikus.com
Fri Aug 9 18:43:40 EDT 2013


With thanks to Lee, there is a JAN or 'war' color coding scheme that uses
a black or silver 1st dot for capacitor dielectric type ID. It is riefly
described here:

http://en.wikipedia.org/wiki/Electronic_color_code#Postage_stamp_capacitors_and_war_standard_coding

Thanks all,

-John

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Hi,

I'm still working on the ART-4 transmitter and want to put values on the
schematic. The unit has about a half dozen 'postage stamp' mica caps.

They are all marked like 'Type 5' on thos page:

http://www.radioremembered.org/capcode.htm

and have 6 color dots.

Reading in the correct order, clockwise starting at the top left, the dots
are:

Black
Green
Brown
Black
Yellow
Red

See the issue? The value SEEMS to be 051 pF; 400 VDC, 2%

Question:  Was it ever convention to use a leading zero in color codes for
this type of cap? I've never seen it before.

Thanks,

-John

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