Bottlehead Forum
Bottlehead Kits => Legacy Kit Products => Quickie => Topic started by: InTheWoods on December 30, 2016, 05:03:06 AM
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I have had my Quickie for about 4 years now. I moved to a new home, hooked it up after it sat for two years, and noticed I had a buzzey hum. So I fashioned a ground for one of the RCA inputs and grounded to my electrical outlet ground. That helped not only with the buzzey hum but also with the inductance I hear when I place my hand close to the tube. However it produced a rhythmic click. I installed a PJCSS upgrade last night. The clicking did not go away, and I may have a little more buzz now since almost eradicating it.
In checking the voltages this is what I have:
IA/IB - 35.75 on each.
A6/B6 - 24.25/27.15
A5/B5 - 1.9/2.1
I am using a Adcom 545 power amplifier and CD input.
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Clicking can come from your cell phone, or occasionally a wifi router or computer that's in close proximity.
Switching your phone to airplane mode and shutting down your computer would be good steps to take to eliminate each as a potential source of noise.
-PB
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Thanks for the reply CBP. I have a wifi router in close proximity and it also shares the same electrical circuit. Ill play with that some.
So the voltages look ok? The A6/B6 voltage is way off according to the instructions.
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So the voltages look ok? The A6/B6 voltage is way off according to the instructions.
Your plate voltages look OK, especially considering that your filament bias voltages are about spot on.
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Well I feel like a heel. I rolled a new set of tubes in and everything quietened down. A very small minute amount of noise with your ear pressed against the speaker like she was your date. All is good.
Why or why do I always think the worst!
Thank you for your responses CBP.
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I'm glad to hear everything worked out for you. If the batteries are all fresh, high plate voltage can indeed be an indicator of a tube that's starting to wear down (and a listener who is doing his job well!).
-PB