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Questions about tubes and gear that glows. FAQ

RE: more on Hk W-5m restoration, passive preamp?

If you use a 100k pot it's output impedance will be 25k when adjusted to -6db.

If you have 200pf of cable + Miller capacitance the -3db point will be 32kHz. The phase will be off all the way down to 3.2kHz.

Get a autoformer volume control from Dave.

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