Trying to trouble shoot Hum with LP PSU Pre

[makinrose]

Hi Kevin.



Email sent.



We have really been struggling to get this whole thing together. The instructions that came with the kit(s) were somewhat confusing. I've attached what we have as far as those go. Over the coarse of time, did those get changed/updated?



The top photo in this thread shows the front of the amp. From left to right,  AC power lamp (under that power on/off switch), Mid, Bass, Treble, Gain, Master, and then guitar input.



On the back left to right: AC power, effects loop (yellow) wire, Speakon speaker connector.



We've heard on other forums that the star ground is the best route to go for grounding. The TUT3 book looks interesting but @ $86.00 a bit out of our range. Can you offer any other advice?



Thanks again,



Jonathan

Jonathan,
This just my two cents but I think it would be very wise to invest in a quality text like TUT3 especially if you plan on doing projects of any sort with guitar amps.  The London Power instructions I've received have all been very clear but required I had enough background to know how to use the instructions.   When I first started building amps I was using "internet experts" and old layouts and schematics. I was soon was exasperated with the lack of quality and consistency of the information.  Getting some quality texts were HUGE step forward for me.  The best analogy  difference between reading a blog about scientific discoveries and having access to peer reviewed journals.    

All the best with your project!