TD253
The TD253 is a 10mA germanium tunnel diode. It is used in several Tektronix instruments, including the 547. It is specified to have a maximum capacitance of 9pF. There is also a TD253A, which has a maximum capacitance of 5pF.
The TD253 is a 10mA germanium tunnel diode. It is used in several Tektronix instruments, including the 547. It is specified to have a maximum capacitance of 9pF. There is also a TD253A, which has a maximum capacitance of 5pF.