The Boogie Board

Just read the guide; really, really cool and interesting to read. Definatly sticky material! Great work Silverwulf! I look forward for more. Thanks for sharing your hard work, research, and years of knowledge!

Thanks for the effort. Also, those are some nice PCB shots. Some initial thoughs:

Compared to rev C+, there are some minor layout changes here and there on the clean channel. Other than that and the mentioned caps, it seems to be pretty much identical. Rev D seems to introduce some other changes, but I need more quality PCB shots to confirm.

Those larger filter caps Silverwulf mentioned are in the low voltage supply circuit and shouldn't have any effect on the tone - unless there was something considerably wrong with it to begin with. Are the B+ supply cap pairs 10uF/450V? If those would be 15uf, that would definitely make the amp more akin to the 2 channel model.

I have a 3 channel recto that to me sounds a little different then others I've played. The serial number is R- 017437. My question is .. Is this a Revc? Mine has no line above the output and solo controls, the trademark symbol is there also. The power tf is 562105. Any help would be great.

I have what I was told is a 2004 Triple Rectifier. Here is the info on mine to add to your records.

Rev: C+
Serial: R-0285xx
Brackets and "Loop Active" are present.
"TM" on front logo.

I don't how far in the timeline this was done but with my (2nd) 2008 3ch Dual Recto, both gain pots measured at 100k instead of the aforementioned 250k, even with EMG 81's I had to max the gain at low volumes and ran it around 4:00 at band levels.

I remember another forum member R_ADKINS80's 3ch Triple also had 100k pots, it was either from same year as mine or 2006.
Mine came stock with the 440's, I didn't have the older one for long, most likely had the 430's in them.

When I played my first 3ch Recto back in 2002, it didn't sound like the one mentioned above, and I had the gain around 1:00 and it was enough.
I ran my 2ch Triple with the gain the same way, so this could be one of the main differences between early 3 channels and later ones (pre multiwatt)

I lost all of my pics in an HDD crash so I'm going off my experience with all 3 amps.

I just picked up R-17433. It's a rev C+. TM on the front logo. No brackets or active loop lettering. Hopefully this adds to your info! Let me know if there any other specifics I can gather off the amp.

Awesome! I think I saw that one when I was looking around... I think you now have the earliest confirmed Rev C+, so that narrows down the serial numbers some!

I've been flipping a lot of these to document and test, and I still have a Triple at the moment that's a few hundred higher than yours. I don't recall the serial off the top of my head, but it's R-017880 or so. Somewhere in that range. Anyway, that one still has the 561140 PT in it, so I would assume that your does as well?