Peripheral Products


7470A

Pen Plotters Selection:

Name: 7470A
Product Number: 7470A
Introduced: 1982
Division: San Diego
Ad: Click to see
Original Price: $1550
Catalog Reference: 1983, P. 618

Description:

The 7470A was the world's first small format paper-moving plotter. Previous plotters held the paper still while a mechanical arm held a pen to draw a 2-dimensional image. The advantages of the paper-moving technology were: lower costs due to fewer mechanical parts, higher speed due to the much lower inertia of the moving parts, and smaller size. The 7470A was a two pen plotter that plotted on A4-size media. It offered three interfaces: HP-IB, RS-232-C and HP-IL (for connection to HP handheld computers). The 7470A replaced the 7225A.

Collector's Notes:

These plotters are very reliable. The four units that have come through the museum have all worked fine as of 2012. In 2014, we had a unit that would not access P1 and P2 or move paper after being turned on. After powering the unit on three or four times (for 30 to 60 minutes), the machine started to remember how to move paper again. The power supply must have gotten a little tired after not having been used for so long. The 7470A does not have an exterior switch and fuse slot for changing input AC voltage. But, this can easily be accomplished by removing the top case and performing the adjustment as per the service manual.

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