Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Quickie => Topic started by: jvmonta on May 11, 2013, 05:06:35 PM

Title: pjccs noisy
Post by: jvmonta on May 11, 2013, 05:06:35 PM

I installed pjccs and like it's attributes but mine is noisy. At first I thought it was tube noise but it was definitely the pjccs, sounds like a dirty volume pot except it does it on it's own. I've heard this sound with bad transistors before and that is what I'm suspecting. Anything else I might be missing? Thanks.

Title: Re: pjccs noisy
Post by: Paul Birkeland on May 11, 2013, 05:12:39 PM

Is it noisy regardless of the position of the volume control?  Are the voltages in spec?  Does the noise occur in both channels?

Title: Re: pjccs noisy
Post by: earwaxxer on May 11, 2013, 05:45:55 PM

I would take the PJCCS out and put the resistors back in and make sure is all good. It might make it easier to check everything on the PJCCS as well. Just to help make sure you are barking up the right tree!

Title: Re: pjccs noisy
Post by: jvmonta on May 12, 2013, 07:39:01 AM

I am barking up the wrong tree, the noise is still there after removing pjccs, both channels, just not as pronounced. I will investigate further.

Title: Re: pjccs noisy
Post by: 2wo on May 12, 2013, 09:56:30 AM

Short the inputs and try that...John

Title: Re: pjccs noisy
Post by: Paul Birkeland on May 12, 2013, 04:59:17 PM

I would also advise cutting a long piece of wire, then touching it to the chassis of your source on one end, and the shell of an RCA jack on the other.

You can also try this with your amplifier.