Share:
Notifications
Clear all

Mystery CRT

 
Doz
 Doz
(@doz)
Noble V-Ratter Registered

Saw this tiny tube on eBay, and purchased it on a whim, as you do. Apparently a 4 volt heater. Can anyone identify the type?

image
image
image
ReplyQuote
Topic starter Posted : 06/11/2019 1:11 pm
Topic Tags
Doz
 Doz
(@doz)
Noble V-Ratter Registered

I think I've answered my own question ..

VCR522?

ReplyQuote
Topic starter Posted : 06/11/2019 1:35 pm
Marconi_MPT4
(@marconi_mpt4)
Reputable V-Ratter Registered

Appears that VCR522 is equivalent to CV1522 and all information suggest it was made by GEC with commercial type designation E4103/B/4.

It might be worth checking these links:

https://www.valvecollector.uk/cv1522.htm

https://frank.pocnet.net/other/ServiceTypes/cv4-1/CV1522.pdf

Also have brief data for GEC E4103/B/4 if required.

This tube has a green screen type B which has 100ms persistence .  Va1,a3 absolute maximum is 1kV

Rich

ReplyQuote
Posted : 06/11/2019 3:00 pm
Cathovisor
(@cathovisor)
Illustrious V-Ratter Registered

Was this the tube in the GEC Miniscope?

ReplyQuote
Posted : 06/11/2019 3:50 pm
turretslug
(@turretslug)
Honorable V-Ratter Registered

Now that magic eyes are increasingly rare and expensive, you could feed one set of plates with 50Hz to generate a line in one plane and  the other set with AGC to deflect it ? 

ReplyQuote
Posted : 06/11/2019 4:04 pm
crustytv
(@crustytv)
Vrat Founder Admin
Posted by: @cathovisor

Was this the tube in the GEC Miniscope?

Indeed, GEC used their own 1 ½ " CRT an E-4103-B-4 as shown below, perhaps the tube Andy has here is an equivalent?

gecminiscp
ReplyQuote
Posted : 06/11/2019 4:34 pm
Doz
 Doz
(@doz)
Noble V-Ratter Registered
Posted by: @crustytv
Posted by: @cathovisor

Was this the tube in the GEC Miniscope?

Indeed, GEC used their own 1 ½ " CRT an E-4103-B-4 as shown below, perhaps the tube Andy has here is an equivalent?

The data would suggest that. I'll see if I can get it to light at some point

ReplyQuote
Topic starter Posted : 06/11/2019 4:41 pm