10-09-2008, 09:33 AM
Early caps in the uuF (pF) ranges used relatively think dielectric, from what I understand. Wider "plate" spacing in a cap lowers the capacitance and raises the DC working voltage. High voltage caps were not needed in the original circuit designs, just worked out that way due to the construction practices and materials then in manufacturing caps.
Chuck
Chuck
Chuck Schwark,
The Philco Repair Bench
[Image: http://www.philcorepairbench.com/images/philog3tiny.gif]
http://www.philcorepairbench.com