Muff Fuzz Debugging

[Pakaloabob]

I have built a Muff Fuzz to spec. on perfboard from the schemtic here: http://www.generalguitargadgets.com/diagrams/muffsc.gif
I was getting decent sound but with some gating-type effect. The note would ring when picked hard, but quickly be dampened.
The voltages that JD Sleep listed are as follows (from GGG http://www.generalguitargadgets.com/bom/muff.txt)

Q1 E - 0
Q1 B - .585
Q1 C - 1.728

Q2 E - 1.18
Q2 B - 1.72
Q2 C - 8.36

I am getting this:

Q1 E - 0
Q1 B - .563
Q1 C - 1.743

Q2 E - 1.139
Q2 B - 1.742
Q2 C - 4.22

As you can see, I am only getting about half the voltages that I should be getting at Q2's collector. I am not experienced enough in debugging to figure out what component I should check to remedy the problem.
As a n00b I figured this simple circuit would be a good one to debug to gain experience for future builds.
Thanks in advance to anyone who can give me a clue 

[Kearns892]

Since all of your other voltages appear to be correct, check the connections around Q2. Make sure the total resistance from the positive 9 volts to the collector is in fact 10k ohms.
You said you did this on perf, check to make sure none of your joints are accidentally making a connection where there shouldn't be one. Which Perf layout did you use to make this?

[Pakaloabob]

@Kearns892: Thanks for the quick reply!
I actually kind of made my own perf layout. I placed the components pretty much as they are on the schematic and left plenty of space in between to avoid anything touching. The solder side of the perf seems to be pretty clean with nothing touching that shouldn't be touching.
I verified across the 10k resistor from +9V to collector of Q2: 9.83 k.
What next...

[Kearns892]

Hmmm, I would still like to see the perfboard layout. You could take some pictures and post them or create the layout exactly as you have it in the DIY layout creator program (a link to download the program can be found at the sticky near the top of the page).

[Mugshot]

Q2 collector voltage is low, as per JD's pin voltages. maybe a short somewhere around Q2, or maybe replace Q2 altogether. sometimes too much heat kills trannies. i did in some of my builds

[Pakaloabob]

That should be easy enough to check since all my tranis are socketed. I guess I should check components first anyway.
Update to follow...

[Kearns892]

If you socketed your transistors I doubt they were overheated (granted they were put in after soldering the sockets in) and even if they were fried that wouldn't lower the voltage at the lead (unless you made a new connection there by accident). Still though if you cant see anything else, might as well give it a try.

[Mugshot]

or maybe a half-dead battery?

[Pakaloabob]

I did check the battery voltage. Although not new, it is running about 8.6V.
If the battery voltage was low, wouldn't the other transistor voltages be lower also, not just the Q2 collector?

[Kearns892]

8.6 Volts should be fine

[Mark Hammer]

Possible that something to the right of Q2 in the schematic is pulling the collector voltage down.

[Pakaloabob]

Possible that something to the right of Q2 in the schematic is pulling the collector voltage down.

That is kind of what I was thinking. I tried desoldering the C3 cap and the diode pair and rechecked the voltages - still 4.2v!
I guess my next step will be to remove the Q2 trani socket and clean the area on the board with desoldering braid. If that doesn't do it, I may have to start fresh with new perfboard. However, I would REALLY like to be able to troubleshoot and fix the problem without having to start over.
I WILL win this battle 

[Gus]

How do you know your voltages are wrong? GGG's could be wrong.  Most people want about 1/2 the supply voltage at the 2nd transistor collector(I like to make it adjustable for different sounds) in a FF the Muff fuzz is just another Si FF like circuit with fixed gain.

Ohms law can help. 

Lets look at your voltages take the voltage at the emitter of Q2 1.139VDC and you have a 2.7K emitter resistor that is about .42ma (ohms law V/I)

.42ma x 10K = 4.2VDC drop across the 10K
9VDC supply - 4.2VDC =4.8VDC at the collector
8.6VDC -4.2VDC = 4.4VDC
This is not taking into account Q2 base current and resistor tolerances etc.

[Pakaloabob]

Well, I hate to say I gave up but I kind of did.
After checking all components on the board, I decided that I must have a short somewhere that I could not locate.
I de-soldered all parts and dropped them in a breadboard - voila! Working perfectly.
Made a new perf and everything working fine. Must have been a bad solder job the first time around - I am getting better now.
Thanks to everyone who gave me suggestions. They were helpful in guiding my first real debugging.