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78L05 is the one you should use, so you are fine there. Are you sure your regulator is not backwards? Do you know what brand it is...possibly it has a different pinout. Any subs or mods you've done otherwise?

I believe you may be getting some bleedover. Try moving your input and output wires around a bit in the enclosure. Does it make any difference at all?

A much less elegant way is to...oh never mind, Paul's thing is too cool.

(but I do use 3m foam tape to hold mine in place the solder)

The idea there was if you are running two circuits in one box, one with the RR and one at 9v, the extra pads would be wired from the RR to the PCB using 9v. That way you do not have to double up on wires on the DC jack because those stupid things have really small holes on their lugs.

I would audio probe the circuit to see if you are getting any signal through at all, and at what point it is dropping out. Check these points:

R1/C1 for input.
Pin3 and Pin1 of IC1.

You should also see the following voltages:
9v on pin8, 0v on pin4, 5, 6, & 7, and maybe between 5-6v on pins 3, 2 and 1.

The areas that are the most likely causes for too much output are incorrect values for R5, R6, R8, R9, R10, R11 and R27. These directly correlate to the gain of the two stages of IC1. Double check those resistors first.

Finally, I have received shipping notification from the manufacturer. The Pre-Orders will start going out in just a few days time. I'm hopeful that I will be able to start shipping them on Saturday.

De-soldering braid is not too great at removing solder between pads, although it works pretty well on the surface face of them. You really need some vaccum action to get to the through-hole.

One other trick: if you have some solder stuck in a pad, heat the bottom pad up with your iron then gently push the lead of the component through the top side. The solder heats up from the iron and sticks to the lead as it is pushed through the hole.

I removed a spamming post. Please do not register here just to advertise your business.

...

One more

This sums up my philosophy perfectly!

Here is one for those impatient with Brian...

Bwahaha.

I heart this thread.

The pinouts are the same, but the power requirements are opposite. The jumpers route ground and power to the appropriate pins depending on which IC you are using. Same with the other "power swap" projects like the Aquaboy and Dirtbag.

I don't remember exactly how I expressed this in the Porkbarrel documentation, but if I said it was due to different pinouts, that isn't accurate---the correct way should be as described above.

The voltage gain is determined out of the compander is determined by the two resistors which are 47k in your case. You can lower those resistors to see if helps. You should be able to half them down to 24k or so.

The signal should be hot at pin7 on the BBD. After the signal is processed through the BBDs and filtering it is then "normalized" by the expander portion to a lossy but cleaner singal. I take it you are getting distorted signals out of pins 14 and 15 of the NE570 given your description.

If you want to post a hi-resolution close up of the top side of the board, I can help you spot check resistor values in a few key areas. Maybe another set of eyes will pick up something you might have missed.

Also, from your earlier post: using 10k for the Feedback definitely results in much sooner oscillation than a higher value. I have suggested 100k in place of that in the mods section of the forum, I think. I've found this to be true on every DMM I've built and on the one unit I own, as well.

That actually sounds about right. I'm a bit stumped.

Couple more questions: you are using 9v to supply the circuit? Have you used 47k on both R11 and R12? Positive you set all three jumpers correctly for the v3205 version?

I'm kind of baffled at the signal being okay at pin7 but coming out distorted on pin3 and 4.