US$ 1312.00
this metal-base board tensions six 1-meter wires side by side with 4mm socket terminals at each end
sized so students don't switch between two hand tools while preparing leads for student-built bench circuits
with a captive thumbscrew on one prong for Melde's standing-wave experiment and binding posts accepting 2-6V DC
with a slide-bar carriage carrying a phosphor-bronze contact and three binding posts
Zener Diode Unit Racks & Stands_Flask Stands this metal-base board tensions sixMounted Zener diode on a transparent base with 4mm color coded sockets and a printed circuit diagram, available in voltage ratings from 2. 7V to 24V for breakdown region demonstrations.