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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Hum Adjust on early McIntosh tube amps posted by Halvo on May 4, 2004 at 11:21:17:
The MC-30 hum balancer 'balances' the AC supplied to the filaments of the tubes thus reducing filament hum - supposingly. Since MC-30 does supply filament voltage to the preamp octal connector, it is true that the hum balancer affects the McIntosh preamp connected to it. But the MC-30 hum balancer also affect the tubes on MC30 itself too, so you should hear a difference when you adjust it.On my MC30s, if hum balancer is out of adjustment, I seem to start picking up them Halogen light dimmer noise. All the tubes I have on my MC30's have spiral filaments and won't pick up filament hum anyways. So may be we are hearing stray RFI picked up by filament circuitry or some such.
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Follow Ups
- Re: Hum Adjust on early McIntosh tube amps - Aki 14:29:36 05/04/04 (1)
- Re: Hum Adjust on ANY tube amps - Ron Oehlert 01:01:38 05/05/04 (0)
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