On 25.07.2014 15:56, Tim Shoppa wrote:
General Radio used to have some common values of capacitances available in "terminator" type configuration and "passthru"/"bulkhead" type configuration. These were moderately useful doing some bridge-type measurements. I remember blowing one up once, and taking it apart being pretty impressed the capacitor was a concentric design. I haven't seen examples of these newer than the type 874 hermaphoditic connectors.
You probably mean capacitors between center conductor and shield?
I swear a couple decades ago I saw BNC terminator-type capacitors in the Pasternack catalogs that filled my mailboxes, but I never saw any of these in the flesh. I do know that "DC blocking capacitor" series-capacitor BNC's are widely available from Pasternack and others.
Yes, I've seen those, too. They actually come in 3 variants: DC-blocking on the center conductor, on the outer conductor, or both.
None of these is what I mean, though. I meant DC-blocking between outer conductor and chassis, on a passthru connector that blocks DC on neither the center conductor nor the outer conductor. I've no idea why this is not a common item, just as feedthru capacitors for single wires are.
Cheers Stefan _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
