Radio valve, Mazda U.U. 120/500
Radio valve, Marconi Osram D.E.7
Radio valve R.C.A., type 47, pentode
Radio valve, Mazda AC/TP
Radio valve
Radio valve R.C.A., type 83, mercury rectifier
Radio valve G.T.5 E, Thyratron, gas filled relay
Radio valve, MS/PEN A
Radio valve type 4304 A
Radio valve, Ferranti H.4.D.
R.C.A. all metal radio valve type 6c5
Loewe radio valve
Radio valve, Mazda Q.P.240
Radio valve, Mazda A.C. V/P1
Radio valve, Mazda U.U.2
Radio valve, Mullard PZ1-35
Radio valve - 4278 A, screened grid
Radio valve type 4036 A, micro-ray tube
Loewe radio valve, type 2HF
Radio valve - C.A.T.15 for ultra short waves
Radio valve R.C.A., type UX 222, screened grid
Radio valve B.T.27, shield grid Thyratron
Radio valve - P.T.25, output pentode
Radio valve, Osram P.T. 625
Radio valve, Marconi M.S.4
Radio valve, Marconi Osram R.5V
Radio valve - AC/T6, air cooled transmitting
Radio valve, Osram L.S.5.6.
Radio valve, Mazda P.P. 5/400
Radio valve, standard Micromesh P.B.1
Radio valve, Mazda V.914
Radio valve, Mazda A.C.S/G
Radio valve, Ediswan U 235
Radio valve, Philco 36E (AC/DC screened grid)
Radio valve, B.T.H. R.H.1
Radio receiving valve R.A.F. type C
Radio valve
"Round" soft triode radio valve
NT46 or NT57 silica triode valve from the early ground radar transmitter type TF3
1936
NT46 or NT57 silica triode valve from the early ground radar transmitter type TF3, 1936
1936
McVitie Weston valve collection, Hivac valve, type D210
McVitie Weston valve collection, Hivac valve, type D210
McVitie Weston valve collection, Hivac valve, type B220
1937
McVitie Weston valve collection, Hivac valve, type A15
1937
PT54 (Hivac Z220 Harries) beam tetrode
Hivac B220 radio valve
Hivac Y220 Harries beam tetrode
Radio valve, Cosmos S.P.18 (Blue Spot)
