Use a BNC 'T' as the tap in a 50 ohm transmission line. Use a small cut-off
piece of suitably small phosphor-bronze finger stock to take up the slack
between the probe barrel & the inner diameter of the 'T'. the finger
stock may be left in place in the 'T' after trimming. the fingers will
retain it.
Keep lookiing for an adapter if you wish. They can be found for much
less than $150!
Arthur Shulman
?
jocjo_john wrote:
?I've got an 8405A Vector Voltmeter. The
probes have a barrell with a
tiny pointy point coming out. The pointy point is about .03 in
diameter and the barrell is about .288 diameter.
It would be nice to be able to connect these probes to a directional
coupler or into a transmission line. That would require a way of
converting the probe to a BNC connector. Aha! I see that HP had
a
BNC adaptor #10218A for that purpose. They also had a kit #11064A.
I
found the BNC adaptor for sale for $150. But that's about what
I
paid for the whole instrument!
What do others do to be able to connect these probes to real
circuits?
Thanks for any suggestions.
John
?
