The tube: ILC 1-1/8 – Updated!

20160404_134417(0)

Here is a detailed description of the tube.
The Filament voltage is 3.15V (150 mA). You have pins 1,2 (+) and 14,15 (-) to use. It’s not necessary to use both couple, 1 or 2 and 14 or 15 are enough.
(It’s also possible to use AC for the filament.)

The next is our Grid voltage, +20V (45mA .. 50mA). The Grid are the pins 4, 8 and 13 (one of these).

The other pins are the segments. To use with +20V too. Each segment needs 3mA .. 4mA current.

Annotaion:
It’s possible to reduce the Grid and segment voltage down to 12V. The segments are still on, but not so bright. For test it’s great!

An example:
20160404_132524

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