This 3-tube receiver is from a 1924 publication. The circuit has 3 supply voltages and a high-impedance headphone output.
Found in Motorola documentation from the 90's, this circuit charges the capacitor with a constant...
This linear characteristic circuit is based on a junction field effect transistor. The FI and BFO...
Analog Devives EVAL AD5941 Electrochemical Evaluation Board This board provided by Mouser...