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A2087 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - VHF Noise Generator Diode - GEC

भाग संख्या A2087
समारोह VHF Noise Generator Diode
मैन्युफैक्चरर्स GEC 
लोगो GEC लोगो 
पूर्व दर्शन
1 Page
		
<?=A2087?> डेटा पत्रक पीडीएफ

A2087 pdf
TYPICAL OPERATION
Noise Diode for use up to 220 MHz
Anode voltage
Saturated anode current range
Filament voltage range (approx)
*Source resistance
* Noise factor measurement
range (approx)
100
0-20
0-4.3
50
0-13
100
0-20
0-4.3
70
0-14.5
100
0-20
0-4.3
300
0-20.8
V
mA
V
0
dB
*When measuring receiver noise factor, using with the diode a source resis-
tance Rs (to match the receiver input) and the technique of setting the value
of la(sat) to double the noise output power to the receiver detector, the range
of noise factor that can be measured with a given value of Rs is as shown.
Then, noise factor = 10 IOg10 (20 la Rs) dB,
where la is the diode saturated anode current in amperes and Rs is the source
resistance in ohms.
INSTALLATION
The valve can be mounted in any position.
A screening canister, which also serves as a retainer, is necessary.
Free air circulation around the canister is preferable. The temperature of the
hottest part of the bulb must not exceed 200°C.
This valve has been designed to give a life of 1,000-2,000 hours operating at
a saturated current of 5 mA. With a saturated current of 20 mA the Iife is
approxi mately 100 hours.
No correction of the norse factor for electron transit time when measured as
above is necessary for use up to 220 MHz.
Whilst M-OV has taken care to ensure the accuracy of the information contained herein
it accepts no responsibility for the consequences of any use thereof and also reservesthe
right to change the specification of goods without notice.
M-OV accepts no liability beyond that set out in its standard conditions of sale in respect
of infringement of third party patents arising from the use of tubes or other devices in
accordance with information contained herein.
A2087
Page 2

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