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Jun 14, 2025 | 0 comments

A Brief History of the Vacuum Tube: The Glowing Heart of ...

Published by IWISTAO Before the age of transistors and microchips, the vacuum tube reigned supreme. From radios and televisions to oscilloscopes and early computers, vacuum tubes were at the core...

Nov 21, 2022 | 2 comments

Brief of Vacuum Tube Models and Replacement

The blog collects some tube models and give them a brief, also you can do a simple replacement, but for details, you need search them and get detailed parameters and curve.

IWISTAO Vacuum Tube Preamplifier