Auster 隨手亂彈

電位器(英文：Potentiometer，通俗上也簡稱 Pot，少數直譯成電位計)

25k pot and 1 Mohm form the input impedance.
The 1 Mohm is there for safety ... in case the glider of the pot loses contact.

If you have, like me, in your CD-Player volume control
you should be able to remove 25k pot.

But the pot has got another task. too:
If you use different sources and the amplifier gain is high (sse my prvious posts! )
Then this pot lets you adjust the level,
so that amplifier Will Not Clip.

Rule, if you keep 25k pot.
1. Put your CD-Player output, to 80-90% of max rotation.
2. Play a record with 'normal' output level. Those your favourites!
3. While keeping the CD volume at 80-90%, adjust 25kOhm pot
for a rather high sound output.

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Wrong method to set level:
Turning up the 25k very much, and only be able to use your remote CD-Volume to maybe 15-20%
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