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

glowinganode · 9th Dec 2012, 8:51 pm

I think Bob was referring to the CT52, yes I noticed the delay line too. Indeed it is there so you can see the signal at and slightly before the point of triggering. Often the distributed circuit is replaced by a coiled length (20-30 M?) of coax.
Martin, yes it is very much a TV crt made by Brimar like you say with P7 phosphor.
An LF "Polyskop" but with a twist, the input stage detects frequency as well as amplitude so can be used with an external frequency souce glide tone etc.
Cheers, Rob.

9th Dec 2012, 8:51 pm	#183
glowinganode Octode Join Date: Apr 2009 Location: Aylesbury, Buckinghamshire, UK. Posts: 1,522	Re: Oscilloscope Collection / Junky I think Bob was referring to the CT52, yes I noticed the delay line too. Indeed it is there so you can see the signal at and slightly before the point of triggering. Often the distributed circuit is replaced by a coiled length (20-30 M?) of coax. Martin, yes it is very much a TV crt made by Brimar like you say with P7 phosphor. An LF "Polyskop" but with a twist, the input stage detects frequency as well as amplitude so can be used with an external frequency souce glide tone etc. Cheers, Rob. __________________ We have done so much, for so long, with so little, we are now qualified to do anything with nothing.