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McVitie Weston valve collection, Hivac XL HF triode valve, 1935

Electronic Components

1935

McVitie Weston valve collection, Hivac valve, type AC/YY

Electronic Components

Hivac B220 radio valve

Electronic Components

Hivac Y220 Harries beam tetrode

Electronic Components

Triode-Hexode valve, Hivac type AC/TZ, c.1938

Electronic Components

1938

McVitie Weston valve collection, Hivac valve, type J240

Electronic Components

PT54 (Hivac Z220 Harries) beam tetrode

Electronic Components

Hivac AC/Z Harries beam tetrode

Electronic Components

Hivac AC/Y Harries beam tetrode

Electronic Components

McVitie Weston valve collection, Hivac valve, type AC/Z

Electronic Components

McVitie Weston valve collection, Hivac valve, type SG210

Electronic Components

1933

McVitie Weston valve collection, Hivac valve, type D210

Electronic Components

McVitie Weston valve collection, Hivac valve, type A15

Electronic Components

1937

McVitie Weston valve collection, Hivac valve, type B220

Electronic Components

1937

McVitie Weston valve collection, Hivac valve, type DDT/220

Electronic Components

c. 1935

McVitie Weston valve collection, Hivac valve, type PX230

Electronic Components

McVitie Weston valve collection, Hivac valve, type VP216

Electronic Components

McVitie Weston valve collection, Hivac valve, type AC/Y

Electronic Components

McVitie Weston valve collection, Hivac valve, type P220

Electronic Components

McVitie Weston valve collection, Hivac valve, type D210

Electronic Components

McVitie Weston valve collection, Hivac midget valve type XD

Electronic Components

1935

McVitie Weston valve collection, Hivac midget valve type XD

Electronic Components

McVitie Weston valve collection, Hivac midget valve type XD

Electronic Components
Two touch-sensitive switches using Hivac tubes marked CTIS 425A2, made by Hivac Limited, aka the High Vacuum Valve Company, London.

Two touch-sensitive switches using Hivac tubes marked CTIS 425A2

Electronic Components
Fourteen examples of ruggerised miniature valves developed for proximity fuses; made by Hivac Limited, aka the High Vacuum Valve Company, London, 1944-49; also samples of components stamped from metal sheets.

Fourteen ruggerised miniature valves developed for proximity fuses, by Hivac, 1944-49

Electronic Components

1944-1949
Hivac triode valve, Miniature triode for hearing aid

Hivac triode valve

Radio Communication

1930s
Hivac triode valve, Miniature triode for hearing aid

Hivac triode valve

Radio Communication

1930s