Comments for Virtual Valve Museum blog http://www.tubecollector.org/vvmblog A blog supporting the Virtual Valve Museum Wed, 11 Apr 2012 07:48:08 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on KTZ73 by JOHN http://www.tubecollector.org/vvmblog/?p=11#comment-55 JOHN Wed, 11 Apr 2012 07:48:08 +0000 http://www.tubecollector.org/vvmblog/?p=11#comment-55 Have a KTZ73 with metallised coating, under 'KTZ73' is '85' Have a KTZ73 with metallised coating, under ‘KTZ73′ is ’85′

]]> Comment on Guestbook by Ken Carlock http://www.tubecollector.org/vvmblog/?page_id=2#comment-54 Ken Carlock Thu, 08 Mar 2012 08:59:36 +0000 http://tubecollector.org/vvmblog/?page_id=2#comment-54 I was in electronic warfare in the late 60's. Our B-52's used carcinotrons for jammers. Your Thomson CSF CV6124 entry says: "It measures 290x140mm overall and has a 5-pin plug. It appears to be water cooled. Output is via a coaxial connector." We actually cooled them with a silicone oil and a 10K RPM (!) pump. I was in electronic warfare in the late 60′s. Our B-52′s used carcinotrons for jammers.

Your Thomson CSF CV6124 entry says:

“It measures 290x140mm overall and has a 5-pin plug. It appears to be water cooled. Output is via a coaxial connector.”

We actually cooled them with a silicone oil and a 10K RPM (!) pump.

]]> Comment on Guestbook by Reno Lippold http://www.tubecollector.org/vvmblog/?page_id=2#comment-52 Reno Lippold Thu, 01 Mar 2012 21:30:47 +0000 http://tubecollector.org/vvmblog/?page_id=2#comment-52 We have a Westinghouse KX462. It has a radioactive sign on the side. So folks are concerned about health issues and disposal. Is there any information available on what this tube contains that is radioactive, and how we would we dispose of it. Thank you. We have a Westinghouse KX462. It has a radioactive sign on the side. So folks are concerned about health issues and disposal. Is there any information available on what this tube contains that is radioactive, and how we would we dispose of it. Thank you.

]]> Comment on CV1075 by JMH http://www.tubecollector.org/vvmblog/?p=52#comment-51 JMH Thu, 26 Jan 2012 18:02:34 +0000 http://www.tubecollector.org/vvmblog/?p=52#comment-51 Just added an internal pic of the CV1075 - no beam plates in there, and three grids! Just added an internal pic of the CV1075 – no beam plates in there, and three grids!

]]> Comment on CV1075 by JMH http://www.tubecollector.org/vvmblog/?p=52#comment-50 JMH Thu, 26 Jan 2012 13:36:55 +0000 http://www.tubecollector.org/vvmblog/?p=52#comment-50 Ah! the 'T' mark indicates it was made by British Tungsram. If you run the numbers, 6L6G is a CV1947 for which the CV Register shows CV1075 and EL37 as possible substitutes. But the EVS sheet for CV1075 vs CV1947 is derinately different and CV1075 specifies the prototype KT66. Naughty indeed... Ah! the ‘T’ mark indicates it was made by British Tungsram. If you run the numbers, 6L6G is a CV1947 for which the CV Register shows CV1075 and EL37 as possible substitutes. But the EVS sheet for CV1075 vs CV1947 is derinately different and CV1075 specifies the prototype KT66. Naughty indeed…

]]> Comment on CV1075 by Roger Walker http://www.tubecollector.org/vvmblog/?p=52#comment-49 Roger Walker Thu, 26 Jan 2012 11:37:39 +0000 http://www.tubecollector.org/vvmblog/?p=52#comment-49 Hello Jeremy I have a similar CV1075 that looks just like a 6L6G, tests just like a 6L6G and probably IS a 6L6G! I think someone was ripping off the MoD with that one? Roger Hello Jeremy
I have a similar CV1075 that looks just like a 6L6G, tests just like a 6L6G and probably IS a 6L6G! I think someone was ripping off the MoD with that one?
Roger

]]> Comment on E4T by JMH http://www.tubecollector.org/vvmblog/?p=40#comment-47 JMH Tue, 22 Nov 2011 18:56:08 +0000 http://www.tubecollector.org/vvmblog/?p=40#comment-47 I now have an E80T thanks to Ake - and the E4T is identical except it has a getter mark, the E80T does not. See http://www.tubecollector.org/e80t.htm I now have an E80T thanks to Ake – and the E4T is identical except it has a getter mark, the E80T does not. See http://www.tubecollector.org/e80t.htm

]]> Comment on Guestbook by Brook Verrall http://www.tubecollector.org/vvmblog/?page_id=2#comment-42 Brook Verrall Mon, 21 Nov 2011 10:55:42 +0000 http://tubecollector.org/vvmblog/?page_id=2#comment-42 What an excellent site the quality is excellent no other word for it. Have recently retired. Have eight WS38 sets in various poor states. Thought I would have a go at rebuilding a couple of them. The valves are all MAZDA OCTALS which are different from the American OCTALS. The ARP12, CV1331, Mazda VP23 valve is correct in your listing. The ATP4, CV1366, Mazda V248A valve in your listing is octal which is incorrect. Purely for the purist. Not so keen on the AA batteries either! I have a few old valve data manuals and strangely the ATP4 is not listed in any of them. Perhaps it was only used in this set and improved on elsewhere. There are still a few around - NOS. Thankyou for your time. Brook Verrall G0VEB . What an excellent site the quality is excellent no other word for it. Have recently retired. Have eight WS38 sets in various poor states. Thought I would have a go at rebuilding a couple of them. The valves are all MAZDA OCTALS which are different from the American OCTALS. The ARP12, CV1331, Mazda VP23 valve is correct in your listing. The ATP4, CV1366, Mazda V248A valve in your listing is octal which is incorrect.
Purely for the purist. Not so keen on the AA batteries either! I have a few old valve data manuals and strangely the ATP4 is not listed in any of them. Perhaps it was only used in this set and improved on elsewhere. There are still a few around – NOS.
Thankyou for your time. Brook Verrall G0VEB .

]]> Comment on E4T by JMH http://www.tubecollector.org/vvmblog/?p=40#comment-33 JMH Thu, 17 Nov 2011 09:55:59 +0000 http://www.tubecollector.org/vvmblog/?p=40#comment-33 Yes that does look identical and Ake e-mailed me to suggest the same. The CV Register shows E80T to be a CV5724 and I have the EVS sheet for that. Yes that does look identical and Ake e-mailed me to suggest the same. The CV Register shows E80T to be a CV5724 and I have the EVS sheet for that.

]]> Comment on E4T by John K http://www.tubecollector.org/vvmblog/?p=40#comment-31 John K Wed, 16 Nov 2011 20:28:56 +0000 http://www.tubecollector.org/vvmblog/?p=40#comment-31 Maybe it operates on the principle of the E80T beam deflection tube. See Ake's page and the data sheet I sent with the xray view:- http://www.akh.se/tubes/htm/e80t.htm Maybe it operates on the principle of the E80T beam deflection tube.
See Ake’s page and the data sheet I sent with the xray view:-
http://www.akh.se/tubes/htm/e80t.htm

]]>