Tube Amplifier

Since most audiophiles already have a transistor power amplifier with good perfo...

The circuit principle is shown in the figure below, which is a typical OCL power...

This amplifier is a single-ended Class A amplifier with a fully symmetrical mirr...

This circuit has only two stages of amplification. The front stage is a 6N3 comm...

The more mature LM1875 integrated amplifier is used to make this gallstone ampli...

This article introduces two tube preamplifiers with their own characteristics. T...

The Sugon new 2A3C is an improved version of the factory's 2A3. Its main feature...

The power amplifier circuit that I used 2A3C to connect is shown in the figure. ...

Two 6p1 power tubes are used for stereo class A output, and the output power is ...

Since FM broadcasting (TV audio) operates in the ultra-high frequency range, und...

This article introduces a "homemade" tube amplifier to audiophiles who like to g...

This circuit is designed for power tubes with high negative gate voltage, and is...

Now, we introduce a method of making a tube power amplifier that uses the mains ...

The author has designed a pre-stage board circuit (as shown in the figure). As l...

The pre-stage circuit made by the author is shown in the attached figure. It com...

The whole circuit is shown in the figure. The voltage amplification adopts high ...

The following electron tube amplifier is made of the most common electron tubes....

After connecting a 6N8 to drive a FD422 single-ended tube amplifier, the circuit...

The author bought a Chunfeng brand SC-1 6-lamp two-band dual-purpose tube radio ...

The author believes that the vacuum tube televisions at that time were high-tech...