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Hivac

The High Vacuum Valve Company [probably] began production in 1932. They specialised in miniature valves for hearing aids and portable radios, although they did also make full sized valves of very high quality - e.g. this PX230. Their boxes were particularly attractive.

I have some data and/or prices for the following types:-

B220, D210, H210, L210

P210SW

P220, PP220, PX230

PX230SW Review, Advert

SG210

SG220SW

V220, VS210

XD, XL Review, Curves, Advert 1, Advert 2, Advert 3

XP

XSG Review and Curves, Advert 1, Advert 2, Advert 3

XY Advert 1, Advert 2

Y220

Z220

Here are thumbnails which link directly to the adverts, which are shown in approximately chronological order, and contain some data. They are all from the T&R Bulletin between 1933 and 1937. The Transmitting and Receiving Bulletin was the official journal of the Radio Society of Great Britain before the Second World War.

Hivac Advert
XSG, XD,
XL
Hivac Advert
XSG, XD,
XL
Hivac Advert
H210,L210,D210.SG210,VS210
P220,PP220,V220,Z220,B220,PX230
Hivac Advert
valve
features
Hivac Advert
valve
features
Hivac Advert
increased
range
Hivac Advert
XSG, XD,
XL, XP, XY
Hivac Advert
XY
.
Hivac Advert
PX230SW
.
Hivac Advert
Y220
.

Andy Cowley, 2005    Home