Threshold FET 9 cartidge loading DIP switch - info please? - diyAudio
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Old 18th December 2008, 09:39 PM   #1
laugoo is offline laugoo  United Kingdom
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Join Date: May 2004
Location: UK
Default Threshold FET 9 cartidge loading DIP switch - info please?

Can anyone enlighten me on the resistor values associated with each particular DIP switch position for the FET 9 preamp? Any info on that would be appreciated. Thanks!
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Old 19th December 2008, 06:35 PM   #2
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Nobody seems to have it. As I recall, it is simply an 8 switch DIP with
the loading resistor/cap right next to each switch element. The resistors
were RN55D with the value printed "side up" showing the three digit value
with multiplier - "4752" = 475 X 100 = 47.5K

With all switches open, I think the default is 47K with 100 pf or so, and
other common values were 1K and 100 ohms, but you can read the values
and see for yourself.

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