On 3/1/12 7:52 AM, Ron Schuster wrote:
Could you clarify something for me? Are you saying is that a 74141 should not be used for cathode-side blanking? What about the Russian K155ID1, which I assume has similar specs to the 74141?
The 74141 is not designed for blanking. The Russian chip is said to have higher voltage Zeners, so it may work. You do need to use a fairly low supply, like 180V. A regulated switcher is best for this.
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