The spark gap ceramic disc capacitors are still being made but are not
listed in several distributors catalogs. "Sprague Cera-Mite" brand has
them and are named "Gap-Kap". A link to the pdf spec sheet is below.
There are five sizes with different arc over ratings.
0.75 pF, 1Kv WV, 1.0-2.0 AOV
1000 pF, 1Kv WV, 2.0-3.0 Kv AOV
4700 pF, 3Kv WV, 4.0-6.0 Kv AOV
10000 pF, 1.5 Kv, 2.0-3.0 Kv AOV
22000 pF, 1.0 Kv WV, 2.0-3.0 Kv AOV
http://www.vishay.com/docs/28521/gapkap.pdf
Other HV caps of interest;
http://www.vishay.com/docs/23094/hvdiscap.pdf
http://www.vishay.com/docs/28515/hv1kv6kv.pdf
http://www.vishay.com/docs/28516/hvldf05.pdf
http://www.vishay.com/docs/22161/h.pdf
http://www.vishay.com/docs/22050/ddml0825.pdf
http://www.vishay.com/docs/22162/hr223035.pdf
http://www.vishay.com/docs/22084/ps2055c2.pdf
http://www.vishay.com/docs/22110/r012.pdf
RFE International;
http://www.rfeinc.com/Catalogs/1%20Capacitor/B%20Ceramic/C1BE03%20Class%203%20&%204%20Series%20-%20Semi-Conducting%20&%20Spark%20Gap.pdf
Hope this info can be useful.........
Will Matney
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