We found this circuit in a French documentation from the 80's. The components used are still common and the circuit can generate signals from 10 Hz to 100 kHz.
This is the transmitter of the transmitter of a micro remote control that appeared in the November...
This unijunction relaxation oscillator can be used as a very useful signal injector. The circuit is...
April 2017 - Texas Instruments' new high-precision TMP468 sensor can now be obtained from Mouser...