Antique radios, Old Time Radios
LM399
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Country:
United States of America (USA)
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| Identical to |
LM399
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| Similar
Tubes |
Other class quality (otherwise equal):
LM299
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| Base |
Wires
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| Description |
Precision voltage reference, temperature stabilized subsurface active zener.
6.95 typical breakdown voltage, 0.5 ohms dynamic impedance, 3 ppm typical, 20 ppm max temperature coefficient. Also 'A' suffix, tight specs.
TO-5, four-pin metal-can case with thermal shield.
0 to +70 degrees/C operating temp. range.
National Semiconductors.
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
9 x 5 x 8 mm / 0.35 x 0.20 x 0.31 inch |
| Weight |
1 g / 0.04 oz |
| Information source |
- - Manufacturers Literature Special Function DB, 1976
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LM399: National Semiconductor
Günther Stabe † 19.8.20
More ...
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LM399: National Semiconductor
Günther Stabe † 19.8.20
More ...
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LM399: National Semiconductor
Günther Stabe † 19.8.20
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
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