Characteristic Curve Apparatus (Value) |
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Pentode Characteristic Apparatus :
(ZES-90)
The instrument is designed to draw the characteristic of the Pentode valve. It has
two built in power supplies. Four 65mm, dia meters are provided to read different
Electrode volt/current. The Pentode valve is fitted on panel.
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| Input |
230volts AC |
| H.T. 1(Stabilized) |
0-300volts at 30mA |
| H.T.2 |
0-250volts at 25mA |
| Bias |
0-10 volts at 100mA |
| L.T. |
6.3 volts at 2Amps. |
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Built in a nicely polished box with on/off switch, jewel light etc.
(b) ….Do.. (Tetrode Characteristic Apparatus) |
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PENTODE/TETRODE VALVE ON BOARD (ZES-91) |
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Triode Characteristic Apparatus :
ZES-92)
The instruments is designed to work on 30 volts AC it consists of Power Supply of
its own, fitted with a Triode Valve. Three meters are provided to read the Anode
Voltage/Current & Bias.
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| Specifications |
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| Stabilized Power Supply |
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| Input |
230 volts AC 50 c/s |
| H.T. |
0-300 volts at 30Milli Amps |
| Bias |
10-0-10 volts at 50 Milli Amps |
| L.T. |
6.3 volts at 2 amps |
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The instrument is built in a steel box nicely polished.
(b) …Do… with Two meters. |
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Diode Characteristic Apparatus : (ZES-94)
The instrument is designed to work on 230 volts AC. It consists of Regulated
Power Supply of its own, fitted with a Diode Valve on the front panel. The anode
voltage can be varied from 0-250 volts at 25 Milli Amps. Two meters are provided
to read the Anode Voltage a anode current. This apparatus is very useful for
plotting the characteristic curve of a Diode valve. The instrument is built in a steel
box nicely polished.
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| Specification |
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| Stabilized Power Supply |
|
| Input |
230 volts AC 50 c/s |
| Output |
0-250 volts at 25 Milli Amps |
| L.T. |
6.3 volts AC at 500 mA variable (Continuously variable) |
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(ZES-95)
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Photo Cell Characteristic Apparatus :
(ZES-96)
Specifications
A variable DC power supply is fitted with two meters to read DC voltage applied to
the Photo tube, and second meter is provided to read the current. |
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PLANCK'S CONSTANT APPARATUS With Analog Meter :
(ZES-97)
The instruments is provided with complete circuit diagram for estimation for plank
constant. Power supply is built in provided with Micro ammeter and Voltmeter to
read the current and voltage. Set of three filters are provided. Photocell vacuum
tube 868 or its equivalent is used.
(b) …do…… With Digital Meter
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Thyratron Characteristic Apparatus :
(ZES-98)
To study the ionization potential of thyratron valve (Control characteristic) it
consists of three meters to read Anode Voltage. Anode current and Grid bias.
Provided with two power supplies of its own, with circuit diagram and instruction
manual.
(b) ..do.. Ionization Potential of Mercury Using Thyratron Valve 2D21 with 2
meters. |
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Milikan's Oil Drop Apparatus :
(ZES-99)
Complete with Power Supply.
(b) — do — power suppy for above. |
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Work Function of a Diode Valve :
(ZES-100)
Complete with 3 Meters, Power Supply & Diode Valve. |
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To Verify Inverse Square Law Using Photo Voltic Cell
(ZES-101) |
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