Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: damnub on January 30, 2016, 02:00:10 AM

Title: wrong resistance at rca connections [resolved]
Post by: damnub on January 30, 2016, 02:00:10 AM

hi im trying to fix my crack amplifier and everything was fine exept for a small hum so i started reheating the connections and now  the resistance is wrong at the right RCA cable. the red cable has 0 ohm but the white cable is fine(100k ohm). i went back to the manual and started rechecking everything but I couldnt find a mistake.
I drew the potentiometer and the resistances i hope it makes it more clear. thanks in advance.

Damnub

Title: Re: wrong resistance at rca connections
Post by: Doc B. on January 30, 2016, 06:12:55 AM

You probably created a solder bridge from the center conductor to the outer conductor of the red RCA jack when you reheated those connections.

Title: Re: wrong resistance at rca connections
Post by: damnub on January 30, 2016, 12:27:24 PM

I couldnt see a bridge but i reheated it again. now its fine thanks a lot! now i just need to remove the some small background noise and the sound is perfect :)

Title: Re: wrong resistance at rca connections [resolved]
Post by: Paul Joppa on January 30, 2016, 03:32:00 PM

Once again, the good Doctor gets to keep the corner office!

Title: Re: wrong resistance at rca connections [resolved]
Post by: Doc B. on February 02, 2016, 11:18:35 AM

I just wish someone would clean it up...