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Old 28th Sep 2019, 10:44 am   #75
Argus25
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Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,679
Default Re: Bush TV22 with TC184 B3 converter.

So this circuit has an even shorter time constant than the TMB272, only 14uS. That is 14 times less than the TV22. Of note though, there is generally no need for the diode, it was never included in American circuits. I am doubtful of the advantage it confers, though there may be one. Its pretty obvious though that the TV22 has an excessively over integrated V sync pulse.
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