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FERNSEH · 2nd Oct 2019, 10:10 am

An alternative to the usual resistor and capacitor frame pulse integrator is to employ an inductor. The attachment shows the sync separator circuit employed in the Masteradio T852. The 0.5H inductor will present a high impedance to the line sync pulses and will serve as the anode load. Note the frame sync coupling to the blocking oscillator. The 0.002uF capacitor and 27Kohm resistor form a differentiator and flyback will be initiated by the positive going frame pulse.

DFWB.

2nd Oct 2019, 10:10 am	#92
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Bush TV22 with TC184 B3 converter. An alternative to the usual resistor and capacitor frame pulse integrator is to employ an inductor. The attachment shows the sync separator circuit employed in the Masteradio T852. The 0.5H inductor will present a high impedance to the line sync pulses and will serve as the anode load. Note the frame sync coupling to the blocking oscillator. The 0.002uF capacitor and 27Kohm resistor form a differentiator and flyback will be initiated by the positive going frame pulse. DFWB. Attached Thumbnails