HI Paul,
"I don't know what "HD BNC" means. There's only one BNC"
Years ago when working in a university with Photomultiplier tubes, we used
HV BNC connectors - these looked like standard BNC, but were rated at 10kv.
https://www.radiall.com/products/rf-coaxial-connectors/high-voltage-connect…
We also used to use 75 Ohm BNC connectors for video systems.
https://www.hubersuhner.com/en/products/radio-frequency/connectors-adapters…
It is worth noting that there are multiple BNC connectors.
Kindest regards,
Doug Jackson
em: doug at
doughq.com
ph: 0414 986878
Check out my awesome clocks at
www.dougswordclocks.com
Follow my amateur radio adventures at
vk1zdj.net
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On Tue, 4 May 2021 at 15:30, Paul Koning via cctalk <cctalk at classiccmp.org>
wrote:
I don't know what "HD BNC" means.
There's only one BNC. By 3W3 do you
mean the D-sub shell with 3 coax inserts? Those are standard items, you
could just buy one. The only problem you might encounter is that the cable
connector kind is probably crimped, and the crimp tooling is likely
expensive. But a solder or PC mount connector could be used, with an
impedance bump that can be ignored for video applications.
Sync on green is the usual from DEC.
paul
On May 3, 2021, at 7:22 PM, Adam Thornton via
cctech <
cctech at classiccmp.org> wrote:
I assume it would be way too much to hope that HD BNC would fit it? Does
anyone have a pointer to the actual physical dimensions of the itty-bitty
BNC-ish connector in the video port of the VAXStation4000vlc? If I can
get
red, green, and blue out (assuming since there
are only 3 connectors it's
sync-on-green) I can put together a sync splitter and turn it into VGA.
I
have at least one decent multisync VGA monitor
still, although none with
the RGB BNC inputs.
Adam