UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

geofflove · 16th Feb 2021, 1:20 am

Hi, I'm just about to take delivery of a CB935 2 + 4 switchboard.

I won't be using it as a switchboard (I don't know it is is fully working anyway). However, I would like to utilise some of the indicators etc in it in some way so need a little info please.

I understand the board works on a 12v dc supply. I also know it has a generator to provide a ring to other lines. I'm guessing the generator is around 50v ac?

In terms of the dolls eyes indicators what voltage do these run on? Are they powered by the 12v or 50v line? Do these indicators have 2 or 3 positions?

Does the board have it's own buzzer or bell to sound or did it use an external bell?

Thanks!

16th Feb 2021, 1:20 am	#1
geofflove Diode Join Date: Feb 2021 Location: Newcastle on Tyne, Tyne and Wear, UK. Posts: 4	CB935 switchboard queries Hi, I'm just about to take delivery of a CB935 2 + 4 switchboard. I won't be using it as a switchboard (I don't know it is is fully working anyway). However, I would like to utilise some of the indicators etc in it in some way so need a little info please. I understand the board works on a 12v dc supply. I also know it has a generator to provide a ring to other lines. I'm guessing the generator is around 50v ac? In terms of the dolls eyes indicators what voltage do these run on? Are they powered by the 12v or 50v line? Do these indicators have 2 or 3 positions? Does the board have it's own buzzer or bell to sound or did it use an external bell? Thanks!