10K square waves

discussion of magnetic volume control design for both line and speaker levels.

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dave slagle
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Joined: Sat Jan 22, 2005 3:54 am
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10K square waves

Post by dave slagle »

Here is the 10K square wave behavior of a pair of the 28 step autoformers driven from a 50 ohm source and loaded only by the scope probes.

for reference, I also measured a typical TVC under the same conditions.

dave
Attachments
The best looking waveform is 0dB and the worst is max attenuation.
The best looking waveform is 0dB and the worst is max attenuation.
TVC.gif (167.43 KiB) Viewed 3723 times
the near perfect wave is 0dB and each step is -2dB
the near perfect wave is 0dB and each step is -2dB
slagleformer.gif (77.03 KiB) Viewed 3723 times
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