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| Heath Educational Analog Computer Model EC-1
| | The Heath Company
| | Benton Harbor, Michigan
|
| Operating range: | +/- 100 volts DC |
| Computing Elements: | 9 DC vacuum tube amplifiers (6U8) |
| | 5 Coefficient setting potentimeters |
| | 3 Initial Condition Power Supplies (0 to +/- 100 VDC) |
| Options: | None |
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