You can use a 4N32 instead, same pin numbers and hookup.
I believe Radio Shack has the 4N32's.
You can find a good article on using the 4N32/4N33 on my website:
http://www.qsl.net/k0bx
and then goto Cw Keying.
Joe K0BX
Joe Duerbusch K0BX
http://www.qsl.net/k0bx
k0bx@qsl.net
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