http://stevekulpa.net/pins4sale/pins4sale.htm
Hi and Low LEDs, unique beep-tones, TTL/CMOS and PULSE/MEMORY
switches. I use one like this myself and am very happy with it. It's
perfect for trouble-shooting your digital electronic circuit boards.
$25.00 each which includes domestic shipping. I'll ship to
international addresses too for extra shipping charges, just e-mail me
for details. My supply is limited, so if you need a nice logic probe,
act now!
thanks for looking,
steve