Found the crackling problem.  When I turned up the sensitivity of my scope I could see the noise way back at V1.  Problem ended up being the 50pf cap coming off the plate of V1.  Not a cold solder joint but a bad cap.  What a relief!
Steve
					Search found 3 matches
- Sat Jul 26, 2008 6:17 am
 - Forum: Trainwreck Discussion
 - Topic: Liverpool with odd problem
 - Replies: 3
 - Views: 841
 
- Fri Jul 25, 2008 3:41 am
 - Forum: Trainwreck Discussion
 - Topic: Liverpool with odd problem
 - Replies: 3
 - Views: 841
 
Liverpool with odd problem
Hi everyone, I finished a Liverpool project about 7 months ago and all has been fine up until now. Basically what I'm getting is this: As the amp warms up I get this very loud crackling noise that gets louder if I turn up the volume control. When the amp is fully cool it can take up to 5 minutes to ...
					- Fri Jul 25, 2008 3:40 am
 - Forum: Trainwreck Discussion
 - Topic: Liverpool with odd problem
 - Replies: 0
 - Views: 542
 
Liverpool with odd problem
Hi everyone, I finished a Liverpool project about 7 months ago and all has been fine up until now. Basically what I'm getting is this: As the amp warms up I get this very loud crackling noise that gets louder if I turn up the volume control. When the amp is fully cool it can take up to 5 minutes to ...