3/4 track for sale, brand-new and used.

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Span Track conveyor section Shelfless carton rollers; 15 1/2" wide x 42" long (rollers are 14" long x 3/4" diameter) ; rated at 50 # per foot Used, good condition Buyer pays shipping Accept Paypal

The Diffraction Apparatus let students create, view, and measure diffraction and interference patterns. The included Red Diffraction Laser provides a clean monochromatic light source. Slits are made by depositing metal film on glass, creating extraordinarily clean slits with fully opaque blocking areas.

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Panasonic Microcasstte Transcriber with Owner’s Manual & Accessories Model: RR-930 Very nice, super clean, working Panasonic microcassette transcriber. This unit is in like-new condition, both cosmetically and functionally. The Panasonic RR series is designed for the small office/home officemarket.

This Sanyo Court Conference Transcriber features 4 track transcribing, 3 speed operation with built-in playback speaker and speed, tone, volume and auto backspace controls. 4 Track Transcribing Transcribe on 4 separate tracks simultaneously or individually 3-Speed Operation Transcri