This 100 MHz bridge circuit was found in an American 1970s documentation. The supply voltages are not indicated, nor are the tubes.
We found this circuit in the Linear Technology Applications of 1997. The circuit uses components of the...
This circuit can generate signals up to 100 kHz. Found in documentation from the 1980s, it makes...
Found in Popular Electronics from the 90s, this circuit has 7,500 ohm of input impedance. The circuit...