This circuit produces a signal in the range corresponding the the VHH channels between 2 and 6. The circuit can be used to test TV receivers or with other purposes. The output is a small antenna 15 to 30 cm long. All capacitors must be ceramic types and equivalent to the transistor, such as the 2N2222, can be used. An audio oscillator can be plugged to the iput modulation to produce horizontal bars in the TV under test.
VHF TV Signal Generator
