Vintage Rockwell Scientific Slide Rule Electronic Pocket Calculator, Model 63R, Rechargeable Battery & AC Adapter, Assembled In Mexico, Circa 1975 : 無料・フリー素材/写真
Vintage Rockwell Scientific Slide Rule Electronic Pocket Calculator, Model 63R, Rechargeable Battery & AC Adapter, Assembled In Mexico, Circa 1975 / France1978
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | This calculator was introduced in 1975 with a list price of $99.99 when the price of electronic calculators was was falling rapidly due to increased competition in the market especially from the Japanese. In 1976, it was offered in one newspaper ad for $39.88.The calculator has an 8+2 digit blue vacuum fluorescent display (VFD) with a ninth digit (and intervening one) for the minus signs. Display input starts at the left rather than the normal right. |
| 撮影日 | 2018-04-23 19:45:00 |
| 撮影者 | France1978 , USA |
| タグ | |
| 撮影地 | |
| カメラ | iS2132 , Polaroid |
| 露出 | 0.017 sec (1/60) |
| 開放F値 | f/3.5 |