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FERNSEH · 30th Apr 2017, 10:03 pm

Waveforms from the line timebase. The sawtooth drive to the KT44 grid and the pulse present at the screen grid of the KTZ63 oscillator. Oscillation takes place between the control and screen grids. The sawtooth waveform is developed on the anode. Repetition rates apart, it's a similar circuit arrangement for the frame timebase.

DFWB.

30th Apr 2017, 10:03 pm	#30
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: HMV 1804 Television. Waveforms from the line timebase. The sawtooth drive to the KT44 grid and the pulse present at the screen grid of the KTZ63 oscillator. Oscillation takes place between the control and screen grids. The sawtooth waveform is developed on the anode. Repetition rates apart, it's a similar circuit arrangement for the frame timebase. DFWB. Attached Thumbnails