Thermostatic relay (CB21285E)

We found this circuit in an old QST magazine. The circuit is powered according to the thermostatic relay used.

Double limit test (CB9593E)
This precision circuit can be implemented with other operational ones. We found it in a...
Amplifier For Thermoelectric Pair (CB1432E)
We find this circuit in 1975 documentation. The circuit can be used with other operational...
TMP468 High Precision Temperature Sensor
April 2017 - Texas Instruments' new high-precision TMP468 sensor can now be obtained from Mouser...