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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: LCR Phono stage posted by walge on May 1, 2021 at 12:38:09:
Btw, the test was not done with 100pF load but with my 1:10 probe which is about 15- 18pF. So the 3 o'clock setting is about what you asked for (-4dB, almost -6dB )Walge, the capacitance load of the potentiometer largely determines the frequency response. So the capacitance load of the next stage is very important.
The great advantage of a normal potentiometer is the absence of all kinds of resonances at higher frequencies. At the same time, the impedance of a normal potentiometer is still high, that's is why professional equipment with tubes usually use lower values and also compensation circuits.
Edits: 05/01/21 05/01/21 05/02/21
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Follow Ups
- RE: LCR Phono stage - kobasa@xs4all.nl 13:45:45 05/01/21 (1)
- RE: LCR Phono stage - walge 12:15:42 05/02/21 (0)
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