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Old March 25th 04, 03:12 PM
Paul Burridge
 
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Default ceramic cap markings

Hi,

If the black-tipped ceramics indicate NPO., what is signified by the
orange-tipped and yellow-tipped varieties?

p
--

The BBC: Licensed at public expense to spread lies.
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Old March 25th 04, 05:40 PM
Tim Wescott
 
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"Paul Burridge" wrote in message
...
Hi,

If the black-tipped ceramics indicate NPO., what is signified by the
orange-tipped and yellow-tipped varieties?

p
--

The BBC: Licensed at public expense to spread lies.


Gay manufacturing engineers?


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Old March 25th 04, 05:40 PM
Tim Wescott
 
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"Paul Burridge" wrote in message
...
Hi,

If the black-tipped ceramics indicate NPO., what is signified by the
orange-tipped and yellow-tipped varieties?

p
--

The BBC: Licensed at public expense to spread lies.


Gay manufacturing engineers?


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Old March 25th 04, 10:01 PM
Roy Lewallen
 
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On a "dog bone" capacitor, orange = N150 (-150 ppm/degree C nominal
temco) and yellow = N220. These are handy for compensating for the small
temperature drift of a good toroidal VFO inductor wound on type 6
powdered iron, by using NPO for most of the tank capacitance, and N150
or N220 for the rest.

Roy Lewallen, W7EL

Paul Burridge wrote:
Hi,

If the black-tipped ceramics indicate NPO., what is signified by the
orange-tipped and yellow-tipped varieties?

p

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Old March 25th 04, 10:01 PM
Roy Lewallen
 
Posts: n/a
Default

On a "dog bone" capacitor, orange = N150 (-150 ppm/degree C nominal
temco) and yellow = N220. These are handy for compensating for the small
temperature drift of a good toroidal VFO inductor wound on type 6
powdered iron, by using NPO for most of the tank capacitance, and N150
or N220 for the rest.

Roy Lewallen, W7EL

Paul Burridge wrote:
Hi,

If the black-tipped ceramics indicate NPO., what is signified by the
orange-tipped and yellow-tipped varieties?

p

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