Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 5859565 | Cathode-follower high-fidelity power amplifier A cathode-follower power output stage is driven by a novel drive stage to provide with low distortion the large signal required to drive the output stage. The drive stage comprises two series connected vacuum tubes which share the large static and dynamic... | 01/12/1999 |
| 4107725 | Compound field effect transistor A horizontal junction-type field effect transistor having a saturated drain current to drain voltage characteristic and constituting an input transistor and a vertical junction-type field effect transistor having an unsaturated drain current to drain volt... | 08/15/1978 |
| 3980965 | Frequency response control circuit apparatus The present circuit comprises a simple variable capacitive coupling to ground for two outputs of a two-output amplifier wherein the frequency gain is either boosted or cut in accordance with the setting of a reactive coupling device. For high frequencies ... | 09/14/1976 |
