Tetrode Characteristics with power supply and 4 meters (C.R.) (V.V.) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12174
Indian Lab Suppliers supplies the Tetrode Characteristics with power supply and 4 meters (C.R.) (V.V.) (Product ID: 12174) as part of its electronics engineering lab equipment range. It is a self-contained set-up for plotting the characteristics of a vacuum tetrode, including its negative-resistance region.
Quick Answer
The valve is wired in on the panel with three continuously variable regulated supplies: 0–250 V DC, 10 mA for the plate, 0–100 V DC, 5 mA for the screen grid and 0–5 V DC, 5 mA for bias. Four 65 mm meters read plate voltage (0–250 V), plate current (0–10 mA), screen voltage or current (0–100 V / 0–5 mA via rotary switch) and bias (0–5 V). When the plate voltage is below the screen voltage, secondary electrons from the plate reach the screen and the plate current falls as voltage rises; students calculate this negative resistance from the graph. The filament supply is not itemised; please confirm at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Device | Tetrode valve, panel mounted |
| Plate supply | 0–250 V DC, 10 mA, variable, regulated |
| Screen supply | 0–100 V DC, 5 mA, variable, regulated |
| Bias supply | 0–5 V DC, 5 mA, variable, regulated |
| Meters | 0–250 V; 0–10 mA; 0–100 V / 0–5 mA switched; 0–5 V (65 mm dials) |
| Mains input | 230 V ±10%, 50 Hz AC, with mains switch, fuse and pilot lamp |
| Dimensions | 400 x 300 x 165 mm (W x H x D) |
| Weight | 4.5 kg (approx.) |
Where This Is Used
Sits between the Triode Characteristics with power supply and 2 meters (C.R.) (V.V.) (Product ID: 12162) and the Pentode Characteristics with power supply and 2 meters (C.R.) (V.V.) (Product ID: 12163) in a valve characteristics course. The 250 V plate supply can give a dangerous shock and the valve runs hot; use under supervision. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What causes the negative resistance?
Secondary emission from the plate to the higher-voltage screen grid.
How many meters are built in?
Four.
Is other apparatus needed?
No, the supplies and meters are built in.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Physics Lab Equipment
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