This has no diode or capacitor that I could see, so I would assume it is not polarity sensitive
sorry the photo is out of focus…mobile phones!
Right, any capacitor or diode would have been right up on top. Single contact points, too, very old, everybody does double points now.
Most likely the diaphragm will be old and stiff and may not move at all, that’s why it doesn’t click continuously.
So you can sell it to an SS or Mark IV or MGT owner as a rebuildable core.
That unidentified bracket may be Morris or Austin or anything.
SS and Mark IV used a right angle bracket as you can see on mine.
…and
Alvis 1933-50
Aston Martin 1933-50
Jaguar and SS 1936-40
Jaguar 1946-48
Lea-Francis all 1928-51 with AUA25 LP pump
MG 1929-53
Morris 1933-39
Morris 1939-48
Morris 1951-70
Riley 12HP 4 Cyl. Hi-Perf; 1950-51
Riley 12HP RMA2 4 Cyl. 1955
Riley 16HP RMB; RMC;1948-51
Riley RMF 1952-54
Singer LeMans 1934
Singer 9 HP 1939-46
Singer 10 HP Sports; 1935
Singer 11 HP 1939-46
Wolseley 8 HP 1946
Wolseley 9 HP 1934-35
Wolseley 10 HP 1936-47
Wolseley Hornet 12 HP. 6 Cyl. 1930-34
Wolseley Wasp 6 Cyl. 1935-36
Wolseley 12 HP Series 3; 4 Cyl. 1937-46
Wolseley 14 HP Hornet Special 1935
Wolseley 14/50; 14/60; 1936-46
Wolseley 16 HP 6 Cyl. 1933-35
Wolseley 16 HP 6 Cyl. Super Sixteen; 1936-39
Wolseley 18 HP 1935-38
Wolseley 21/25 HP 1936-39
Wolseley 21/60 1933-35
Wolseley 25 HP Sportsmans Coupe 1938
Wolseley 4/44 4 Cyl. 1953-56
Wolseley 4/50 4 Cyl. 1948-53
Wolseley 6/80 6 Cyl. 1948-53
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