|
|
 |
|
| This is the famous EC-1 analog computer from Heathkit, which was sold in 1960 as a do-it-yourself kit. The op-amps still use valve tubes. | |
| Total images: 69 | Help | |
|
|
|
|
| This is the famous EC-1 analog computer from Heathkit, which was sold in 1960 as a do-it-yourself kit. The op-amps still use valve tubes. | |
| Total images: 69 | Help | |