UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Components and Circuits

Notices

Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

Closed Thread
 
Thread Tools
Old 5th Dec 2017, 12:42 am   #1
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,997
Default An old valve

I couldn't resist this box of valves at our local auction when I saw this amongst the mainly 50's pulls. It has A23 on the pinch which might be 1st batch of 1923. Needless to say the filament is o/c but a nice display piece. It's surprisingly heavy.

I now have 100+ more valves to store in the garage but fortunately there were only a few TV types.
Attached Thumbnails
Click image for larger version

Name:	AR1.jpg
Views:	208
Size:	16.0 KB
ID:	153393   Click image for larger version

Name:	AR2.jpg
Views:	160
Size:	15.4 KB
ID:	153394  
PJL is offline  
Old 5th Dec 2017, 2:11 pm   #2
Silicon
Nonode
 
Join Date: Jun 2007
Location: Coulsdon, London, UK.
Posts: 2,152
Default Re: An old valve

I assume it is an Ediswan triode.

Does it have 'R' or 'AR' markings on the glass?
Silicon is offline  
Old 5th Dec 2017, 6:33 pm   #3
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,997
Default Re: An old valve

It says:

Royal
Ediswan
AR
PJL is offline  
Old 6th Dec 2017, 8:11 am   #4
Viewmaster
Hexode
 
Viewmaster's Avatar
 
Join Date: Jul 2016
Location: Ashby de la Zouch, Leicestershire, UK.
Posts: 253
Default Re: An old valve

I bought an o/c filament type like this once. The connections from the valve to the pins were actually soldered external joints at base of pins. I resoldered the filament connections and the valve was OK again !
Worth checking on these externally connected pins on old valves.
__________________
"One small step for man".....because he has arthritis.
www.retinascope.co.uk
Albert.
Viewmaster is offline  
Old 6th Dec 2017, 10:49 am   #5
jjl
Octode
 
jjl's Avatar
 
Join Date: Jan 2003
Location: Ware, Herts. UK.
Posts: 1,082
Default Re: An old valve

Quote:
Originally Posted by PJL View Post
It says:

Royal
Ediswan
AR
It's one of these then

http://www.r-type.org/exhib/aaj0061.htm

a nice find, even if the filament is o/c.

John
jjl is online now  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 10:56 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.