Clare 851 A24 B1A Mercury wetted relays

I believe CP Clare was aquired by Ixys (?) and either before or after that divested of mercury wetted relays altogether. Searching for datasheets on the CP Clare web pages are thus probably futile. Your best bet is likely to search elsewhere on the web or try to find out how CP Clare divested of their Mercury business + follow that trail.
 
In my drawer are some Clare mercury wetted relays (made in Tongeren, Belgium) with the type number HG-1047. It has an octal foot, with a diagram indicating:
1, 2 = open contact
3 = source
4,5 = closed contact with 3
7,8 = activating voltage

Does anyone have data?
 
At long last I found the catalog!

Hope it's big enough.
 

Attachments

  • Clare Relay001ed.jpg
    Clare Relay001ed.jpg
    458.4 KB · Views: 1,199
I have some clare relays 851 ..... all NO relays.
I was looking at The Preamp rom Elektor and most of the signals are switched with the NO relays, no NC contact needed.
However, there are a few were ther are NO/NC relays used to switch the audio signals.
Is there a way to make an NO/NC relay from a couple of NO relays. I asked AI perplexity for an answer and let me say he didn't get it or his answers were incorrect. So I like to ask my question here. Can with the help of extra logic and power this be done?