Neovibe voltage regulator orientation.

[GonzoBonzo]

I finished populating my Neovibe board last night.  FYI, the PCB from GGG is printed wrong.  It shows the input of the voltage regulator going to the bulb, and the output going to the diode bridge of the voltage input.  I was also looking at steveb's post http://www.diystompboxes.com/smfforum/index.php?topic=69303.0.  Is the voltage regulator backwards?   It seems it should be mounted facing the other way.  I'm using a L7815ACV, and when I tested a spare one with voltage off the board,  the pins seemed reversed from whats it the pic.

Great clips btw Steve.  Best Hendrix Woodstock sound I've ever heard.  Out of a Fender Princeton?   Maybe mounting the regulator backwards is your secret.

[R.G.]

I'll go check the source files.

[R.G.]

FYI, the PCB from GGG is printed wrong.  It shows the input of the voltage regulator going to the bulb, and the output going to the diode bridge of the voltage input. ...  Is the voltage regulator backwards?   It seems it should be mounted facing the other way.  I'm using a L7815ACV, and when I tested a spare one with voltage off the board,  the pins seemed reversed from whats it the pic.

The last PCB source files I have of that version shows it correct. However, just to be sure, can you take a photo of the actual board you have and post or send it?

The orientation of the 7815 in the TO-220 package is as follows: metal tab away from you, pins down, pins from left to right are input, ground, output. For the TO-92 package, with the flat facing you, pins down, they are from left to right output, ground, input. This is why the printed face of the TO-220 and TO-92 packages on the board face opposite directions.

On the board, the + terminal of the diode bridge goes to the two filter caps, then to the terminal of the 7815 nearest the light shield, the input pin. This goes to the lamp/bulb, because the LFO uses unregulated power, not regulated power. The output pin of the 7815 is nearest the diode bridge, but does not connect to it. It should have traces going past the diode bridge on a jumper and up to the signal path. That doesn't seem to match what you said, so can you take some photos and lemme suss it out? Could be the PCB house went mad on J.D. 

[GonzoBonzo]

On the board, the + terminal of the diode bridge goes to the two filter caps, then to the terminal of the 7815 nearest the light shield, the input pin. This goes to the lamp/bulb, because the LFO uses unregulated power, not regulated power. The output pin of the 7815 is nearest the diode bridge, but does not connect to it. It should have traces going past the diode bridge on a jumper and up to the signal path. That doesn't seem to match what you said, so can you take some photos and lemme suss it out? Could be the PCB house went mad on J.D. 

Ahhh...thanks so much R.G.  Didn't know the Bulb used unregulated power.  Ok, Steves was right, and I put mine in right.  The schematic makes sense now.  The +15 volt on the output goes to the audio section, not the power coming in.  Should be able to power it up tonight.  I'll have to get a bigger case, forgot about the dual pot.

TA
Gonzo