Half Wave and Full Wave Rectifiers II

TUNGSOL U52 ribbed plate 1940s £ 450 pair

TUNGSOL U52 ribbed plate 1940s £ 800 quartet

CV493 GEC KB/Z Hammersmith GBP 100 pair.

CV4005 GEC KB/Z Hammersmith GBP 100 pair.

GEC Osram CV4005 GBP 80 pair.

GEC Osram CV493 GBP 100 pair.

Mullard EZ90 6X4 Yellow print GBP 80 pair.

Mullard EZ90 6X4 White print GBP 80 pair.

U78 Marconi Osram 6X4 with black plate and square getter GBP 250 pair.