is the "PC1EX" only a potentiometer inbuild in an enclosure or is there also a buffer stage include?
here is the product sheet:
PC1EX | Volume Controller | Fostex
and high resolution image
http://www.fostexinternational.com/public/images/product_zoom/PC1EX_Top.jpg
http://virgo-dragoon.blog.so-net.ne.jp/_images/blog/_a04/virgo-dragoon02/PC_1EX_W_003-632f8.jpg
http://virgo-dragoon.blog.so-net.ne.jp/2011-04-25
Thank you for comments.
here is the product sheet:
PC1EX | Volume Controller | Fostex
and high resolution image
http://www.fostexinternational.com/public/images/product_zoom/PC1EX_Top.jpg
http://virgo-dragoon.blog.so-net.ne.jp/_images/blog/_a04/virgo-dragoon02/PC_1EX_W_003-632f8.jpg
http://virgo-dragoon.blog.so-net.ne.jp/2011-04-25
Thank you for comments.
Last edited:
Hi
I'm going to make this myself !
What wattage would the piggy back pot' be /
The ones i've seen advertised are 0.1W
I'm going to make this myself !
What wattage would the piggy back pot' be /
The ones i've seen advertised are 0.1W
> What wattage
Do math.
What's your signal voltage? 1V? 10V??
Voltage squared, divided by resistance, is Watts.
1V^2/10,000 = 0.000,1 Watts
10V^2/10,000 = 0.01 Watts
So a 0.000,1W part is probably OK, a 0.01W part is surely OK.
(Extra-OK because "1V signal" often means Peak, the average is lower, and something as big as a pot won't cook on a short audio peak.)
Since you can't buy less than 0.05W, it isn't important.
Do math.
What's your signal voltage? 1V? 10V??
Voltage squared, divided by resistance, is Watts.
1V^2/10,000 = 0.000,1 Watts
10V^2/10,000 = 0.01 Watts
So a 0.000,1W part is probably OK, a 0.01W part is surely OK.
(Extra-OK because "1V signal" often means Peak, the average is lower, and something as big as a pot won't cook on a short audio peak.)
Since you can't buy less than 0.05W, it isn't important.
It doesn't work !
I've just tried a 10K Alps pot in front of my Seiwin ST-6A active monitors.
The multi-meter says what you'd expect but the volume doesn't go down ?
I've just tried a 10K Alps pot in front of my Seiwin ST-6A active monitors.
The multi-meter says what you'd expect but the volume doesn't go down ?
> It doesn't work !
I hate that phrase. It gives _NO_ useful information to aid debugging.
> The multi-meter says what you'd expect
What would _I_ expect? And what did you expect? Say what you got, not a reference to some one else's expectation.
Look at Beavis' page and try it his way.
Stereo Volume Controls
If you found a _stereo_ pot with all the pins in-line, the pinout is tricky. I can't find my sketch; and since these are very-low-cost (cheap) pots, I would suggest getting a more-normal (and perhaps better quality) 2-unit pot.
I hate that phrase. It gives _NO_ useful information to aid debugging.
> The multi-meter says what you'd expect
What would _I_ expect? And what did you expect? Say what you got, not a reference to some one else's expectation.
Look at Beavis' page and try it his way.
Stereo Volume Controls
If you found a _stereo_ pot with all the pins in-line, the pinout is tricky. I can't find my sketch; and since these are very-low-cost (cheap) pots, I would suggest getting a more-normal (and perhaps better quality) 2-unit pot.
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