Power amplifier tube true and false identification

The power amplifier tube is a key device in the audio power amplifier, and now compares the genuine product with the fake one. 1. Judging from the printed fonts: the authentic fonts are well-proportioned and beautiful, and the writings are not easy to be wiped off

Power amplifier tube true and false identification

The power amplifier tube is a key device in the audio power amplifier, and now compares the genuine product with the fake one. 1. Judging from the printed fonts: the authentic fonts are well-proportioned and beautiful, and the writings are not easy to be wiped off

[Photo] DIY of TC9153AP volume control circuit

DIY of TC9153AP volume control circuit Since Toshiba ’s electronic file did not directly give the application circuit of TC9153, I had to bite the bullet and gnaw the file, and finally found the reason: the original "Application" article made a mi

[Photo] High-Fidelity FM Tuner

1. Performance requirements of high-fidelity FM tuner Due to high-fidelity needs, the tuner has the following three points in terms of component selection and performance requirements: 1. High-frequency head The high-frequency head is the gateway of the tuner, and

[Photo] 4 tube FM transmitter

In-depth analysis of the first-level cache and second-level cache of the technical zone CPU eMMC mass burning dilemma, do you really know? Isolation flyback and non-isolated BUCK application design plan Schottky barrier diode selection and application guide How to

[Photo] FM radio transmitter with 1W power

1W power FM radio transmitter Idle is also idle, it is better to be a 1W power FM radio transmitter Speaking of the production of transmitters and the like, there are the most bugs. The expanded version is said to have hundreds of them in FOLLOW ME RADIO. Haha, i

Discussion on audio system standards and protocols

Today's audio design challenge is how to simulate actual sound and transmit it through various audio devices. Sound can come from any direction. In fact, our brain can calculate and perceive the source of sound. For example, when a fighter flies from one point to another,

How to build a simpler CMOS single zone alarm

How to build a simpler CMOS single zone alarm Explanation This is a simple single-zone anti-theft alarm circuit. Its functions include automatic entry and exit delays and timed Bell / alarm shutdown. It is designed for normal use with normally closed input devices, such as-r