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Author Topic: Radio Valve Tester  (Read 10657 times)

David Simpson

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Radio Valve Tester
« on: 15 July 2025 11:09:41 am »

Please, can anyone identify this (Admiralty ?) Valve Analyser M5. Going by the RN ID's & dates on components, this is post WW2 - possibly early 1950's.
     Back then, the standard RN Valve Tester was the AVO Type 1(2 Panel). This is far more advanced & weighs about 17Kg. This valve analyser, I suspect was built "in-house" at a shore based Radio Depot's Workshop, or possibly somewhere like HMS Collingwood. Built by a skilled CPO, a couple of Tiffies, and a REM or two, I reckon. May have originally been a fixed workshop panel item, but the need for a decent portable tester arose due to the limitations of the AVO Two Panel. Eventually, as many Radio Tiffies & Tradesmen will know, the AVO CT160 came into use in the late 1950's/early 60's, so this item would've become obsolete.

                                             Regards,   David     
« Last Edit: 15 July 2025 04:41:47 pm by David Simpson »
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David Simpson

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Re: Radio Valve Tester
« Reply #1 on: 16 July 2025 11:17:15 am »

Believe you me, using the written info on this old valve tester, ("Valve Analyser M5") (" For further Information see Instruction Book"), I've scrolled as much as possible through the massive online archive the forum site has. Plus the massive military archive held by VMARS(Vintage Military & Amateur Radio Society). Plus a heap of "Googling". Plus a now long-winded Thread Post on the UK-VRR&R (Vintage Radio Repair & Restoration) Forum site. Still - nothing found out. I'm hoping that some "Old Radio/Radar/Telecomms Hand" in the retired RN Fraternity might recognise this old piece of military test equipment?
       Possibly, out there somewhere there is a copy of the "Instruction Book" ?
Me - I'm an old(80 next week) ex RAF Radio guy who served his last 2 year tour of duty('73 to '75) on 8 Sqdn. at Lossiemouth/Fulmar - - a joint RAF/FAA AEW Shackleton Squadron. A half & half RAF/RN unit. My boss was a CPO, & I worked alongside his two PO's.
       Several years before - I serviced & repaired military radio test equipment(including valve testers). Hence now - its been a retirement pastime for the last 18 years.
       Hopefully out there is an equally old ex CPO/PO/LREM/Killick - who might recognise something from the two photos I've posted ?

                                                          Regards,  David
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