Thanks to Gil Ayan and Scott Lerner!

http://www.sheetsofsound.net/images/OvertoneModded.pdf

Here's the BOM. Quantities are approximate. I suggest ordering a few extra of everything except the 350v electrolytic caps. These are the mouser catalog numbers.

(2) 140-XAL350V47-RC 350V 47uF 20%    
(2) 588-45F470E 5watts 470OHMS 1%    
(1) 72-RWM410-3K9-5 3.9k 3watts 5%
(3) 75-516D475M063-E3 4.7uF 63volts 20%
(3) 598-CD16FD331JO3F 330pF 500V +/-5%
(1) 598-CD15FD391JO3F 390pF 500V +/-5%
(1) 140-500S5-121K-RC 120pF 500V +/-10%
(2) 660-MF1/2LLT52R222J 2.2Kohms 5%    
(2) 71-RL20S-G-3.3K 1/2WATT 3.3KOHMS 2%    
(2) 660-CF1/2CT52R154J 150K ohm 5%    
(2) 71-CMF60150K00FHEK 1/2watt 150Kohms
(4) 71-RL20S-G-220K 1/2WATT 220KOHMS 2%
(2) 660-CF1/2C184J 1/2Watt 180Kohms 5%

do the mods I posted in the other thread.

here's the diagram I made with "my" mods. Thanks to Gil Ayan and Scott Lerner for the suggestions. I merely did the soldering. Gil and Scott did the engineering.

Changes are indicated in red.

http://www.sheetsofsound.net/images/OvertoneModded.pdf

try this


www.sheetsofsound.net/demos/effectrodevibe.wma

i'm going to do a full layout using nik's base layout but with the revised parts highlighted in yellow. I just finished mine tonight. My clip isn't as hip as andy's but it's here:

http://www.sheetsofsound.net/demos/effectrodevibe.mp3

here's a very quick and dirty clip done with an edwards LP with P90s. Previously, this would have been bright and shrill.

I'm getting the Illustrator file from Nik and I'll post an updated layout with the new components highlighted.

www.sheetsofsound.net/demos/effectrodevibe.mp3

if you're having problems getting the mp3 to play try this:

www.sheetsofsound.net/demos/effectrodevibe.wma

Hi Ken,

That's a good idea. Using photoshop I'll mark up the schematic when I get some time. Does anyone know what Nik uses to generate the schematics? Visio or something else? Maybe I can get the original files and replace the component values and then hilight them?

There's more. I'll post after doing my next set of mods.

Here's my list of parts:

 1    313-1210F-100K
Linear D-Shaft 100K    04/24/08    1    2.160    2.16
2    140-XAL350V47-RC
350V 47uF 20%    04/24/08    2    2.650    5.30
3    588-45F470E
5watts 470OHMS 1%    04/24/08    4    1.230    4.92
4    71-CW2B-3.3K
3watts 3.3Kohms 5%    04/24/08    3    0.760    2.28
5    75-516D475M063-E3
4.7uF 63volts 20%    04/24/08    10    0.270    2.70
6    598-CD16FD331JO3F
330pF 500V +/-5%    04/24/08    8    1.630    13.04
7    598-CD15FD391JO3F
390pF 500V +/-5%    04/24/08    2    1.310    2.62
8    81-ERB32QC2H121JDX1L
1210 120pF 500volts    04/24/08    3    0.900    2.70
9    660-MF1/2LLT52R222J
2.2Kohms 5%    04/24/08    10    0.070    0.70
10    71-RL20S-G-3.3K
1/2WATT 3.3KOHMS 2%    04/24/08    10    0.230    2.30
11    660-CF1/2CT52R154J
150K ohm 5%    05/01/08    10    0.100    1.00
12    71-CMF60150K00FHEK
1/2watt 150Kohms 1%    04/24/08    10    0.180    1.80
13    71-RL20S-G-220K
1/2WATT 220KOHMS 2%    04/24/08    10    0.230    2.30

    581-5KQ331JOCAM
500volt 330pF 5%    04/24/08    5    0.250    1.25
2    581-5MQ391KOBAM
500volt 390pF 10%    04/24/08    5    0.240    1.20
3    660-CF1/2C184J
180Kohms 5%    04/24/08    10    0.050    0.50
4    660-CF1/2C154J
150Kohms 5%    04/24/08    10    0.050    0.50

no boosts on that clip. I tend to like the sound without the PAB engaged though that may change when I get all the mods done. I'll definitely post my mods recipe.

I would like the bright switch and mid switch on a pedal...

I definitely will. Hopefully Nik will incorporate these changes into his recipe since his amp seems to be based on a particular rev of the schematic that was floating around and not necessarily the one that Robben and Larry use. The changes I'm making will make it closer to the magical version...

No. I've only done about 20% of them. I have a bunch of parts on the way from mouser. They should get here wednesday. Hopefully I'll have time wednesday night to install them.

I did some cleans for a sadowsky demo, all using the ceriatone. Some OD content also...

I did some cleans for a sadowsky demo, all using the ceriatone. Some OD content also...