Plexi 18w Grounding schematic

[Marcfrom]

Hi Guy,
Does anyone have a good grounding schematic of Plexi 18w?

I just finish this amp for the first time, but there's a hum on the vibrato channel, the normal channel is ok.

Thanks.
Marc

[mark enger]

Pix would be very helpful, what grounding did you use?

[Mark]

I built a regular 18 watt amp and I used the diagrams at 18watt.com.