review33.com: 影音天地: 請問有冇高人知道,呢對膽點解印cvx492?

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[#1] 請問有冇高人知道,呢對膽點解印cvx492? Brimar, 點解多個X 最後修改時間: 2025-05-12 05:02:45		Ax1 正式會員 145.xxx.xxx.114	2025-05-12 05:02

[#2] 請問有冇高人知道,呢對膽點解印cvx492?
正面

Ax1

正式會員
145.xxx.xxx.114

2025-05-12 05:03

[#3] 請問有冇高人知道,呢對膽點解印cvx492?
真是未見過，我手上的Brimar CV492 也是没有X
我問了AI , 回答如下，可作參巧

What Does CV Stand For?

CV in vacuum tube naming, particularly in the UK, stands for "civilian valve." This term is part of the British military numbering system, introduced during World War II to standardize designations across armed services for both military and civilian use. For example, CV492 is known to be equivalent to the 12AX7, a common dual-triode vacuum tube.

Why Does CVX492 Have an Extra "X"?

The additional "X" in CVX492 likely indicates that it is a pre-production, experimental, or special-purpose version of the standard CV492 tube. Research shows that similar designations, like CVX465, are described as pre-production batches of standard CV tubes, suggesting CVX492 follows a similar pattern. This "X" may denote a prototype or a tube developed for specific testing or applications, though specific details on CVX492 are less documented.

最後修改時間: 2025-05-12 07:06:48

WilliamsonAudio

正式會員
182.xxx.xxx.180

2025-05-12 07:04

[#4] 請問有冇高人知道,呢對膽點解印cvx492?

Pre-production batch type of the CV465

WilliamsonAudio

正式會員
182.xxx.xxx.180

2025-05-12 07:10

[#5] 請問有冇高人知道,呢對膽點解印cvx492?
https://www.radiomuseum.org/tubes/tube_cvx465.html