Antique radios, Old Time Radios
21E1
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Country:
Poland
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| Identical to |
21E1
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| Was used by |
Technology / Measurement |
| Filament |
Vf 0.6 Volts / If 6.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Round oscilloscope tube with green medium-persistence phosphor, 20cm useful diamaeter
4kV accelerator voltage, 3.1V/mm sensitivity
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Dimensions (WHD)
incl. pins / tip |
214 x x 410 mm / 8.43 x x 16.14 inch |
| Weight |
1000 g / 35.27 oz |
| Information source |
-- Original-techn. papers.
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21E1: Manufacturer's data
Tomasz Szczesniak
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You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
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| Data Compliance |
More Information |
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