NT46 or NT57 silica triode valve from the early ground radar transmitter type TF3, 1936
1936
Fleming Oscillation Valve
1905
Radio valve, Western Electric 216A
NT46 or NT57 silica triode valve from the early ground radar transmitter type TF3
1936
"Round" soft triode radio valve
Radio valve
Radio valve, Western 4211-E
Radio valve, Mazda U.U.2
McVitie Weston valve collection, Hivac valve, type D210
Loewe radio valve, type 2HF
Radio valve, Mazda A.C. V/P1
Radio valve, Mazda P.P. 5/400
Radio valve, MS/PEN A
Radio valve type 4304 A
Hivac B220 radio valve
McVitie Weston valve collection, Hivac valve, type A15
1937
McVitie Weston valve collection, Hivac valve, type J240
Radio valve, Osram L.S.5.6.
Light bulb, or radio valve envelope
1968
Radio valve, Mullard PZ1-35
Radio valve, Ferranti H.4.D.
Radio valve type 4036 A, micro-ray tube
Radio valve, Marconi Osram D.E.7
R.C.A. all metal radio valve type 6c5
Radio valve R.C.A., type 47, pentode
Radio valve
Radio valve, Mazda U.U. 120/500
PT54 (Hivac Z220 Harries) beam tetrode
McVitie Weston valve collection, Hivac valve, type B220
1937
Radio receiving valve W.D. type AR
Light bulb, or radio valve envelope
1968
Light bulb, or radio valve envelope
1968
Radio valve type 4017 B
Radio valve, Mazda A.C.2 Pen D.D.
Radio valve, Mullard Pen 4V
Radio valve,Mazda P.D. 220
Radio valve type 4282 B
Radio valve, Mullard Acorn (1919)
Radio valve, Tungar rectifier, 6 amp. type
Radio valve, Osram M.U.12
Radio valve, Mullard 1W4/350
R.C.A. all metal radio valve type 6F6
McVitie Weston valve collection, Hivac midget valve type XD
1935
McVitie Weston valve collection, Hivac valve, type VP216
Radio valve, standard Micromesh P.B.1
Loewe radio valve
Radio valve, Philco 36E (AC/DC screened grid)
Radio valve, Marconi Osram R.5V
Radio valve, Mazda AC/TP
