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Enter one or more keywords to search for using the Zoom Search Engine.
The single character wildcard ? used as ?CC84 will find ECC84, PCC84 and UCC84
The many character wildcard * used as ECC* will find ECC81, ECC82, ECC83 and/or ECC32 etc.
Database keyword terms are all searchable but require hyphens in place of space or . to distinguish from plain text words
eg for triode pentode valves use triode-pentode and for 4.0V heater use 4-0V
For combination searches, enter keywords separated by a space and select match all search words.
eg mullard triode-pentode IO will search for all Mullard triode pentodes with an International Octal base.
Click here for keyword list.
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Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact 35L6 Sensibly equivalent to: CV561 Extras Unknown ...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact CV65 Sensibly equivalent to: Pen25 Extras Unknown ...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact Television Committee's Report - Analysis R W Hallo...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact QS92/10 measured Information courtesy of Jacob Ros...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact GEC A2521 Extras No extras An indirectly heated, h...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact The Cooper-Smith 20 Watt Amplifier W Holmes, The R...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact The EF91 Stef Niewiadomski, The Bulletin of the Br...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact AC Voltage Stabiliser T A Ledward AMIEE, Wireless ...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact Monodial AC Super W T Cocking, Wireless World, Apr...
Menu Home Search Indexes Equivalents Articles Adverts Boxes Timeline Collections Donate Contact Radio Valve Data: 1915-1960 Keith R Thrower OBE, T...
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Type Finder
Need to identify an unknown valve? click here for details.
Type Finder is only available to Museum Friends.
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