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Cylinder drain and relief valve

1870-1879

McVitie Weston valve collection, Osram valve, type T.250

McVitie Weston valve collection, RCA de Forest valve, type 800

McVitie Weston valve collection, Marconi valve, type MT.5B

McVitie Weston valve collection, Marconi valve, type MT.5

McVitie Weston valve collection, ETA valve, horned triode type

McVitie Weston valve collection, Frelat valve, horned type

McVitie Weston valve collection, Tungsram valve, type OQ.70/1000

McVitie Weston valve collection, Ediswan E.S.W.501

McVitie Weston valve collection, air cooled triode

McVitie Weston valve collection, Western Electric, marked 138104D

McVitie Weston valve collection, ballcock type transmitter

McVitie Weston valve collection, Osram-GEC valve, type T.3

Spring loaded valve

1920-1940

McVitie Weston valve collection, Mullard valve, type TZ1-75

McVitie Weston valve collection, Mullard valve, type AT.200

McVitie Weston valve collection, Mullard valve, type VT13

McVitie Weston valve collection, Marconi valve, type V24

McVitie Weston valve collection, Marconi valve, type T.50

McVitie Weston valve collection, mercury arc valve

McVitie Weston valve collection, STC valve, type 3H/150J

Three steam heating valves mounted on board, LNER MIC No.120, relief, reducing, and Mason's reducing valve (1975-7121 - NRM75/20/33), sectioned. Overall: 360 mm x 380 mm x 137 mm.

Three steam heating valves, relief, reducing, and Mason's reducing valve

Piece of laboratory apparatus, metal cylinder with large screw and springs inside, possibly some kind of safety valve, owned by Sir T.L. Brunton, made and/or designed by Boulitte, France, 1851-1900

Piece of laboratory apparatus

1851-1900
Sectioned example of S.S.8 "Snapshut" petrol tap.

Sectioned example of S.S.8 "Snapshut" petrol tap.

Two Valves, sectioned, mounted on board, London & North Eastern Railway (LNER) MIC No 26. Dimensions: 11"x9" Board.

Two Sectioned Valves

Collection of 34 gas filled, cold cathode, stabilizer valves (GCS)

Collection of 34 gas filled, cold cathode, stabilizer valves (GCS)

Pair of "Supatap" model RT/D hot and cold pillar valves (c.1972). Catalogue no.16A-6299 by Supatap Ltd.

Pair of "Supatap" model RT/D hot and cold pillar valves (c.1972)

1972
Collection of radio valves presented by the Engineering Department of Cambridge University.

Radio valves

Valve from nitrous oxide cylinder, sectioned to show internal mechanism

Valve from nitrous oxide cylinder

Medical oxygen valve, from the laboratory at B.P. Chemical Ltd., (Sandbach Works), by Siebe, Gorman and Co. Ltd., English, 1935-1955

Medical oxygen valve

1935-1955
Mercury arc valve (RMW/D240 – McVitie Weston number)

McVitie Weston valve collection, mercury arc valve

Four Crane valves, cat. No. F 52, size 100, 2 way flanged valves,one with a 4" connected flanged tee.

Four Crane valves

Two cardboard boxes marked 'US Army - US Navy Secret Tube Type Jan 725-A Serial No. K8044' and 'Pattern Number CV722'. Each containing two square pieces of wood, marked 'Raytheon', and a glass and metal valve. Part of A510 wireless station, c. 1965.

Valves for wireless station A510, c. 1965

1965