HP-67/97
Videos
The HP-67 is a magnetic card-programmable handheld calculator, introduced by Hewlett-Packard in 1976 at an MSRP of $450. A desktop version with built-in thermal printer was sold as the HP-97 at a pric
HP-67
HP-67 in programming mode showing the key code for STO + 6
The magnetic reading head (top) of the HP-67 and a part of the transport mechanism (rubber rollers and cogwheel) of the integrated reader for magnetic cards
HP-67 with Blackbox in action
Tape head
Videos
A tape head is a type of transducer used in tape recorders to convert electrical signals to magnetic fluctuations and vice versa. They can also be used to read credit/debit/gift cards because the stri
HP-67/97
…manufactured by Educational Calculator Devices named EduCALC 67 GD existed as well. HP-67 in programming mode showing the key code for STO + 6 The magnetic reading head (top) of the HP-67 and a part of the transport mechanism (rubber rollers and cogwheel) of the integrated reader for magnetic cards HP magnetic card…
Tape head assembly from a compact cassette deck. The compact cassette uses four tracks, two for each side; visible are two heads (the silver rectangles inside the black rectangle) for playing one side of the tape at a time.
Erase head
D6 HDTV VTR Scanner and video head, removed
Inside a D6 HDTV VTR Tape Deck, VTR Scanner and video head in place.