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. |
"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? |
"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? |
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 |
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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