Topic
300B
About: 300B is a research topic. Over the lifetime, 1 publications have been published within this topic receiving 2 citations. The topic is also known as: WE300B.
Papers
Patent•
10 Nov 2011
TL;DR: In this article, the main amplifier for an audio device of which a vacuum tube is exchangeable is provided, and a plurality of power circuits are provided for a heater power supply circuit, a plate power supply and a grid power supply, depending on the vacuum tube to be used.
Abstract: PROBLEM TO BE SOLVED: To provide a desirable vacuum tube main amplifier for an audio device of which a vacuum tube is exchangeable.SOLUTION: One of different vacuum tubes such as 2A3, 300B, 50 is plugged into a socket 31 so as to be exchangeable as an output stage vacuum tube 3. A plurality of power circuits are provided for a heater power supply circuit 6, a plate power supply circuit 7 and a grid power supply circuit 8 depending on a vacuum tube to be used. An appropriate power supply circuit is chosen by relays 62, 73 and 83 which operate in response to a vacuum tube exchange switch 5 and connected to the output stage vacuum tube 3.
2 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2011 | 1 |