What's amazing is the relatively small number of electronic components
given it's a 4-function calculator, and as a result it's really convoluted
how you use it.
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My friend suspects they are Natonal Electronics NL 8091 what are you
thoughts on these? I told them if they are, they are rare and extremely
valuable.
On Saturday, August 9, 2014 3:06:33 PM UTC-5, gregebert wrote:
NICE FIND !! Tubes that large are quite rare. They look like Burroughs
If they are NL8091 tubes, they are supposedly very similar to Burroughs.
The Burroughs datasheet says you can run them at 170V DC, with a 5.6K
series resistor, so you should test them to see their condition. Despite
their value, if I had these I would never sell them. Instead I'd make a
