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  #1  
Old 04-05-21, 22:04
Mike Gurr Mike Gurr is offline
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Location: Surrey, United Kingdom
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Default Valves for 18 set

I need to source some ZA7023 valves for the restoration of my No 18 wireless set or knowledge of where I can get any, or a suitable equivalent. Preferably in the UK.
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1944 Matchless G3L
1944 No2 MK2* UC
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1944 BSA M20
Royal Enfield RE125 'Flying Flea'

Last edited by Mike Gurr; 04-05-21 at 22:06. Reason: addition
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  #2  
Old 04-05-21, 23:28
Bob Carriere Bob Carriere is offline
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Default Maybe this can help.....

ZA7023
Information - Help ID = 10495




Upload & Info»
My Tube/Semi»
Country:Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type: Vacuum Pentode RF/IF-Stage Controlling (mu)

Identical to ZA7023 = CV1331 = VP23 = ARP12

Base Octal-8 GB, (Mazda), K8B, MO (Codex=Vup)
Filament Vf 2 Volts / If 0.05 Ampere / Direct / Battery =
Description Army Stores reference for ARP12 (VP23) later named CV1331.
Dimensions (WHD)
incl. pins / tip 33 x 95 x mm / 1.30 x 3.74 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49
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  #3  
Old 05-05-21, 13:34
Mike Gurr Mike Gurr is offline
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Default

I appreciate the details Bob but unfortunately while we do know what we need but can't find a source in the UK despite searches on both ZA 7023 and ARP12. Hoping someone out there can help.
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Mike Gurr

1944 Matchless G3L
1944 No2 MK2* UC
10 CWT GS trailer
1944 BSA M20
Royal Enfield RE125 'Flying Flea'
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  #4  
Old 05-05-21, 15:18
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car_commander car_commander is offline
Les Jackson
 
Join Date: Jun 2006
Location: Somerset, United Kingdom
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Default

Mike,

On eBay.


https://www.ebay.co.uk/itm/203383041...0AAOSw64ZghH6o


Regards,
Les.
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  #5  
Old 05-05-21, 17:08
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Mike Kelly Mike Kelly is offline
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Default Book

https://www.google.com/url?sa=t&sour...fJIbxaaFo9S4fq

ARP12 was also used in the WS 62 . It is a variable mu Pentode. You might find a similar mu Pentode with a 2volt filament.

https://www.google.com/url?sa=t&sour...Lu_PJZ_Ip6hnqE
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Last edited by Mike Kelly; 05-05-21 at 17:29.
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  #6  
Old 05-05-21, 21:40
Mike Gurr Mike Gurr is offline
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Default

Thank you all for the replies, 3 now sourced.
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Mike Gurr

1944 Matchless G3L
1944 No2 MK2* UC
10 CWT GS trailer
1944 BSA M20
Royal Enfield RE125 'Flying Flea'
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