Ruby amp from newbie not working

[beatstrat]

I built the Ruby from ROG and incorporated the 'Bassman' mods.  When the battery is connected/disconnected while the guitar is plugged into the Ruby and it into the 8 Ohm, 12" Celestion (old Fender cab), there is a 'popping' sound like you would expect when plugging a gtr into a 'live' amp.  Also, when flipping the SPST (described later in msg), there is a slighter popping (very subtle) -- other than this, it does nothing.  I am certain of my gtr, cable, spkr box, spkr cbl, etc.

IC (Radio Shack LM386) shows the following VDC readings: pin 1 @ 1.32 VDC; 2 @ 6.9 mV; 3 @ zero; 4 @ zero; 5 @ 4.38 VDC; 6 @ 9.4 VDC; 7 @ 4.74 VDC; and 8 @ 1.32 VDC.  Copper Top showing 9.5 VDC.  MFP102 shows 9.4 VDC @ Drain; zero @ Source and 0.2 mV @ Gate.

I built it on perfboard.  Used the suggested 10K Ohm Log pot for Volume and left off the gain pot in favor of a mini SPST between IC pins 1 & 8 switching between nothing and a 2.2K Ohm resistor (as part of the 'Bassman' mods).

I'm not finding anything shorted to ground that shouldn't be; I've not found any shorting via sloppy soldering, etc.  I did read the 'what to do when it doesn't work thread' and hope I've included sufficient information here.  I would greatly appreciate any help.

Thank you.

[beatstrat]

Anyone?

[beatstrat]

Bump...

[B Tremblay]

Maybe you transposed the pins when posting the voltages, but having the source pin at zero volts would indicate an issue.  This could be due to wiring or incorrect pinout.

[jxoco]

is the MPF102 flat side up  D S G in your circuit?