Transistorized instrument for remote measurement and control of temperature

Conclusions

The preceding thermoregulator uses transistors and crystal diodes in addition to thermistors, thus eliminating completely electron tubes from the circuit, and ensuring reliable operation of the relay even for weak signals received from the bridge output.

The transistorized thermoregulator is not inferior to electron tube regulators with respect to control accuracy, but it is considerably smaller and lighter than the latter.

The response of the thermoregulator to weak bridge signals makes it possible to use not only thermistors type MMT-4 in the bridge circuit, but also type MMT-6, which are microthermistors whose small dimensions provide the measurement and control of temperature at a given point.