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 AL4 valve wanted
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 Return to top of page · Post #: 1 · Written at 12:19:58 AM on 18 December 2016.
Robert69's avatar
 Robert69
 Location: Western Victoria, VIC
 Member since 14 November 2009
 Member #: 579
 Postcount: 110

Hi all,

Does anyone have a good AL4 valve available. It's a side contact (P base valve) with a 4 volt filament. I'm trying to finish a marathon restoration and came to ''switch on'' today only to find the filament OC! Happy to buy or swap.

Robert


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Robert

 
 Return to top of page · Post #: 2 · Written at 11:27:21 AM on 18 December 2016.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

In desperation its the same as EL3N ("P") of which there is also EL3NG (Octal) but you need to find 2V, as these are 6.3V heaters, not 4V.

Marc
 
 Return to top of page · Post #: 3 · Written at 2:36:01 PM on 18 December 2016.
Ian Robertson's Gravatar
 Ian Robertson
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 2371

Click on this very long link!

http://www.ebay.com.au/itm/182136607812

As usual, Google is your friend. Price is not bad, I often get hard-to-find valves this way.

You'll probably not find many of these in Oz, they were not used by local makers UIM.
 
 Return to top of page · Post #: 4 · Written at 3:39:27 PM on 18 December 2016.
Robert69's avatar
 Robert69
 Location: Western Victoria, VIC
 Member since 14 November 2009
 Member #: 579
 Postcount: 110

Thanks guys,

I did first look at ebay, and even found some for US$12, but the postage is $20+. Still if it's the only option I might have to get one this way. I'll also try the HRSA valve bank and see what's available. The radio actually had a 6U7 in place of an AF7 - which I converted back to original (new socket and removed a 4V to 6.3V autotransformer), so I don't want to convert to an EL3 - but it did cross my mind!

Robert


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Robert

 
 Return to top of page · Post #: 5 · Written at 9:50:24 AM on 19 December 2016.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

At least if you have an auto transformer & it's not too physically big, its still an option, albeit a 1A proper transformer would be safer.

I know someone that has had that experience recently with a "P" EL3. I have a replacement for him.

Marc
 
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