Reading old capacitor values
 

Mike wrote in message
...
In the back of Vol. 2 of the RSGB Radio Communication Handbook it shows
two
types of ceramic caps. The first has axial leads and the first color band
is wider and is TC then 1st, 2nd, M, T. The other has radial leads and
has
a dot for the tip then 1st, 2nd, M, T.

I have seen some old small block caps just marcked with pF values.

Mike AA8W

"N_Cook" wrote in message
...
British 1940s components that are driving me dotty
Small rod types with body/end/dot colours
red/red/green
orange/orange/green
yellow/purple/yellow
brown/black/brown

what meaning to the yellow and green multiplier dots ?

and Hunts make, brown cased small block, flat leads, with code oc/3100
impressed into the encapsulation
none of them measuring anything like I think the colours/codes mean


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/






TC = Temp coeff ?
M,T = ?

These were body, end face (as leads are formed to loops around the ends) and
dot, I will try and take a photo , when I get some time. One was broken and
I removed it and replaced with an old axial but plate rather than tubular.


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

Reading old capacitor values
 

Sorry about that
TC= Temp Coeff
M=decimal multiplier, same as resistors to orange. Then gray = .01 and
white = .1.
T= tolaerance More than 10pF black = 20, red = 2, green = 5, white = 10.
All + - %

Mike AA8W



TC = Temp coeff ?
M,T = ?

These were body, end face (as leads are formed to loops around the ends)
and
dot, I will try and take a photo , when I get some time. One was broken
and
I removed it and replaced with an old axial but plate rather than tubular.


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/