I don't know if anyone else has a large junk box/ storage bin with lots of air variables. But I have a large assortment. Anyways, I am looking for a chart that roughly tells what the voltage rating is with regards to plate spacing. I thought I had a chart, but looked thru my older Arrl handbook and I have the 15th and 22nd edition of Bill Orr's radio handbook and I haven't found anything. Any help on this would be greatly appreciated.
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Air Capacitor plate spacing
- Thread starter Crusher
- Start date
per page 265 out of 15th edition Radio handbook, Figure 26.
Usual breakdown ratings of common plate spacings
air gap in inches/ peak voltage breakdown
.030 1,000
.050 2,000
.070 3,000
.100 4,000
.125 4,500
.150 5,200
.170 6,000
.200 7,500
.250 9,000
.350 11,000
.500 15,000
.700 20,000
Recommended air-gap for use when no dc voltage appears across plate tank condensor (when plate circuit is shunt fed, or when the plate tank condensor is insulated from ground).
Enjoy
Usual breakdown ratings of common plate spacings
air gap in inches/ peak voltage breakdown
.030 1,000
.050 2,000
.070 3,000
.100 4,000
.125 4,500
.150 5,200
.170 6,000
.200 7,500
.250 9,000
.350 11,000
.500 15,000
.700 20,000
Recommended air-gap for use when no dc voltage appears across plate tank condensor (when plate circuit is shunt fed, or when the plate tank condensor is insulated from ground).
Enjoy
Thanks for that. I have several bread slicers and they have no voltage ratings on them. A couple do however and the vacuum variables have it written on them. Then again if they are vacuum variables chances are I don't have to worry about the rating. :laugh:
