Antique radios, Old Time Radios
TDA2140
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Country:
Germany
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| Identical to |
TDA2140
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| Base |
SPECIAL TUBEBASE in general
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| Description |
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High stability of the 4,4 MHz subcarrier oscillator against temperature and supply voltage variations
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High noise immunity by triggering ACC and APC circuits
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High noise immunity of the identification circuit
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Internal generation of a combined blanking and burst key pulse by means of the flyback pulse
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When the antenna signal decreases, chroma saturation is automatically reduced before colour killer action
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Colour killer acts at low antenna signal, or oscillator not locked, or PAL-flipflop incorrectly identified, or no burst
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The colour killer is working with a hysteresis
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No adjustments of ACC level and gain are needed
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Integrated 90° phase shifter
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
22 x 7 x 8 mm / 0.87 x 0.28 x 0.31 inch |
| Weight |
1 g / 0.04 oz |
| Information source |
-- Original-techn. papers.
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TDA2140: TTT Steidle 1981
Günther Stabe † 19.8.20
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TDA2140: Telefunken
Thomas Günzel † 1.8.22
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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