THIRATRON MTX-90
Thyratron (from the Greek thyra - door, entrance and electron) gas discharge
(ionic) device (hereinafter referred to as thyratron) with grid torque control
occurrence (ignition) of a glow discharge *
(* kind of gas
discharge - occurs at a low cathode temperature and is characterized by
cathode potential drop - of the order of hundreds of volts, and small currents -
no more than tens of mA). The thyratron was invented in 1929 by an American scientist
A. Hull. Previously widely used in computing devices
technology as a relay and for performing logical operations.
The MTX-90 glow discharge thyratron has a non-heated cathode, an anode and
one grid (the moment of discharge ignition is controlled by the grid current).
Used in automation and telemechanics devices, in counting
devices, measuring, communication and other electronic equipment
for converting electrical signals of low power and as
ion relay and photo relay, in sensor devices and indicators
radioactivity.
Filling - neon at a pressure of 16 - 20 mm Hg.
The cathode is cold, works in any position.
The design is glass, subminiature.
Weight - 4 g
The leads of the electrodes are soft, wire. There are three conclusions:
1 - cathode; 2 - anode; 3 - grid. The pins are counted from the cathode outlet,
welded to the cylinder.
MTH-90 tubes specification:
Voltage of the discharge between the anode and cathode :150V
Voltage of the discharge between the grid and the cathode : 65-90V
Voltage of maintaining the discharge between the anode and cathode: ⩽65V
Voltage of maintaining the discharge between the grid and the cathode: ⩽85V
Voltage of the anode with the grid connected to the cathode: ⩽65V
Anode voltage at a grid current of 1 μA : 85-150V
Anode voltage with a free grid : 200V
The amplitude of the input signal required for glow discharge between the anode and cathode: 1.5 -25V