Heath Schlumberger frequency Counter SM-104 F*S Optical Flat 3/4" NPT male service stems

3/4" NPT male service stems

insulated lines

The lid fits both the outer and the inner pan

It looks like new and includes the original manual

Olympia SM 5 Manual Portable Typewriter owner's manual This is a downloadable PDF and a high-quality digital photo-scan of an Olympia SM 5 Manual Portable Typewriter owner's manual

Heath Schlumberger frequency Counter SM-104 F*S Optical Flat 3/4" NPT male service stemsSM 104A counter provides the same range and readout as the SM 105A, but has a research grade TCXO time base guaranteed stable to 1 part in 10E6 per year and 5 digits of TTL compatible BCD output. Tested and working perfectly. F*S