Calculator Comparisons

From: Joe <rigdonj_at_intellistar.net>
Date: Sat Oct 23 14:06:47 1999

At 01:00 PM 10/23/99 -0400, Tim wrote:
>>>If you don't mind direct drive, there are TTL BCD-to-10 decoder chips
>>>intended specifically for driving Nixie tubes. I just looked in my
>>>newer databook at the 7445 and 74145, and they don't *say* "can directly
>>>drive Nixies", but they do have high-voltage open-collector outputs.
>
>>These "HV" decoders have 30 and 15 volt output devices. The one for neon
>>lamps or Nixies was the 7441.
>
>Thanks for refreshing my memory! Unfortunately NatSemi/Fairchild no longer
>list the 7441 in their TTL lineup, but I'm sure a dedicated hobbyist could
>find the parts at Halted Specialties or similar place.

  There's a store here that carries lots of these old ICs. Let me know if
you have trouble finding them and want me to check on some.
>
   Joe
Received on Sat Oct 23 1999 - 14:06:47 BST