Philips Miniwatt tube boxes?

Hi all,

Could somebody kindly advice when Philips Miniwatt tube series using these boxes were first time launched on the markets? Thank you.

Best regards
Ake
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• PhilipsTube-boxes (113 KB)

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Hello Ake,

Philips launched the Miniwatt boxes in the year 1925. The design of your boxes is from Ir. Louis Christiaan Kalff (1897-1976), who joined Philips in the same year. It was one of the first designs he made for Philips.

Boxes of similar design were used for non-Miniwatt tubes too, see attachment.

The "Miniwatt" label was used by Philips from 1924 (Tube types B2 and B6) untill the end of the tube production in the seventies.
Attachments:

• Philips 452 tube box (27 KB)

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Hi John,

Thank you of your information.
Do I understand correctly that both of "my boxes" are about same age?

BR
Ake

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Ake,

Not nescessarily, a design for a tube box was used for a number of years. I do not have exact figures for that.

Marketing is not technology, a design for a tube box could be used for 10-20 years or even longer.

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