Antique radios, Old Time Radios
Z4_Philips
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Country:
Netherlands
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| Identical to |
Z4_Philips
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| Similar
Tubes |
Normally replaceable-slightly different:
Z4_Ideezet
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| Production stop |
1927 |
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Successor Tubes
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TA6/400
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| Base |
Wires
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 6.5 Ampere / Direct |
| Description |
240W plate dissipation, 300mA at 3.5 to 5KV, gain 80.
Advertised in 1923. Most of the Z types had a matching rectifier which were a look-alike of the Z type. The rectifier for the Z4 was the ZG4 which had no grid and grid connection. The Z and Zg tubes were replaced in 1927. The Z4 was replaced by the TA6/400.
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| Information source |
-- Collector info (Sammler) Banneitz, TB der drahtl. Telephonie u.Telegr. 1927
-- Original prospect or advert Di tubo in tubo, Soresini, pg 97
- - Manufacturers Literature
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Z4_Philips: own collection
Peter den Boer
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