CONTEST Guess how Many? [Contest]

CONTEST
Okay I'm halfway through this thing...so before I start on the transistors, I was thinking.....I'll test using the Rullyweird as well, just to see how it fares against the wonder-tool.
 
Good morning!
I got through the batch with the DCA75 and ran my matching analysis.
I'm 40% finished using the RustyWire matcher when it came to me like a flash!....no, my bench hadn't caught fire again! These results are great for the contest...but in the interest of rocknroll I think we should see just how close of a match is needed for a given circuit. I think the Phase 90 is spot on, and I think the Pharaoh of Phase @thewintersoldier should pick the specific build for this vgs shootout.

Fear not! This wont delay the contest, as soon as I finish measuring and sorting...onto the next phase.
 
Robert said:
I can contribute one of these to the cause in about two weeks.

View attachment 12885
Click to expand...
How about you do a Phase 99 next ;)
Two phase 90 circuits, switch to go between script or block circuits, independent rate knobs with a switch to synchronize them, a switch to go between series and parallel, and stereo outs. Easily the best phaser MXR has ever made.
Only thing that would make it better is if it had a switch to put the two phasers sweeps 180° out of phase with each other when the rate is synced , and maybe stereo ins instead of the series phaser option.

Pretty please??? 🥺
 
The results have been tallied. I enlisted the accounting services of Idda, Donna, and addup. The results were kept in a hermetically sealed mayonnaise jar.

So without further ad nauseam.....The winners are......[cut to commercial]

@Barry @Uberschall and @quality_jones with 17 quad sets (using a .02 threshold and the DCA745). 🥳

I'll PM you the code for your gift certificates, which are being provided by @PedalPCB and yours truly...enjoy!

The guts of the results will be posted. They are sorted by vgs(off) and list the associated transistor id, which is neatly shoved into a hunk of foam in 5 rows of 20. I used 3 thresholds for each test method .02, .01, and perfect match. Interesting.
I'll post the summary first, which is a quick read. The rest is in a spreadsheet, which I can clean it up and add some charting if there is an interest, but I think I can populate a table here with drag-drop, so I'll try that as well.

After the vgs-shootout is finished, please let me know if any of the values listed would help you make a set. I'll send them to you. It looks like I'll also have some extra quad sets as well.
 
If anyone spots an error I'd appreciate the heads up. If you'll notice, there are actually 103. A big shout out to Noe over at Small Bear for padding their count.

The first few things that pop out are the lack of matches at the upper end. It's hard to visually align the differences between the two test methods using linear data, due to the sorting. Graphing this for comparison should reveal a wee bit more.
 
Wow! That's wayyyy more than I would've expected or could hope for.

Congrats to the winners. The real winner is Fig, for all the hard earned work he's shared we all win, for getting that many sets out of the sample size.

If I order a 100 transistors, I'd get 1.5 matched quad sets...


Life's a batch.
 
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Wow that was a ton of work and tbh I was expecting the result to have been lower than the 15 I had guessed. Pretty sweet to get so many usable sets. Congratulations to the winners
 
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