So I finally tried that 42tl013 at 640mh.... I just get a muffed low volume signal and the 2 other foot switch don't work :/. I will double-check all the resistors and connection, if I don't find a culprit I will try and remove the transformer and just jumper the connection see if it work... I...
Well finally got some measurements !
Ic:
1=0.12
2=4.5
3=4.5
4=0
5=0.12
6=4.5
7=7.2
8=0
Transistors from left to right on the board
Q1 9.15 4.0 3.6
Q2 5.6. 5.04. 5.6
Q3 9.15. 7.36. 7.12
Q4 5.75. 3.9. 3.4.
Q5. 5.55. The 2 other pins fluctuate from 2v to 0v when picking the Strings
Q6 5.55...
Quick update.
I got the transformer from the electronic store here in Montreal... Didn't realize it was a 42tl013 and not a 42tm013 :/ I picked one up regardless and I believe be close enough to work. On my transistor tester it reads 641mh :) Just checked mouser.... It's also out of stock :(
I still have my boards unpopulated at the moment :/ I got a few other builds I need to finish before I get to it! I have a few different transformers on hand and I am planing to socket and test different ones to see what I like best :) I will be updating my findings in a couple of weeks :D
Just got my new mega328 transistor tester and used it to mesure the inductance of the 42tm003 transformer ... I get 2.5U xD about 5 times the inductance of the 42tm013. I dunno if I can trust the tester's reading without comparing it to a 013 :/ I have a electronic store in Montreal that sells...
I have seen a couple of post having issues with the circuit... Also found out on other forums how hard it is apparently go get this circuit to do it's thing :/ I tried a lot of diffrent jfets the 2sk30a I have range from Id 0.44ma VG .031v to .66ma and .43v.
Tried also 5457 and, tried 2n5952...
I did ask on a other thread for this but never followed through, I was kinda curious what the original TMR version sounded like. It's a modified version of a old octave fuzz circuit so this might be a good place to start if you wanna give it a shot...
^^ got them :)
Q1 D:7.1v
S:0.19v
Q2 D:0.9v
S:0.16v
We're spending the night in the country at my folks house with the kids so packing everything and getting ready in the morning made it pretty much impossible to check the measurements :).
I asked my dad for a screwdriver about 15...
I am trying to get loose on my end ... but I got a accord with the wife not to tinker on pedals in the day time on weekends xD I am waiting for the opportune time not to get scolded :/
Yep I used j201 smds from mouser.
Here is the exact link from my order ^^
https://www.mouser.ca/ProductDetail/on-semiconductor/mmbfj201/?qs=ljbEvF4DwONpFpdsobl6fQ==&countrycode=CA¤cycode=CAD
I will try to go down in the basement and mesure the drain on my multimeter ! I would have love...
You're right I thought that C6 was 100n xD I must have not looked correctly ! And yeah it is a awesome little fuzz :p I mostly build nowadays just because I love it and I really enjoy trying out new circuits, so I mostly sell my builds on reverb... To buy more pcbs and build more pedals xD it's...
I believe it's lug 3 to out pcb, lug 2 to out jack and lug 1 to ground but I could be wrong :/ I would use alligator clips beforehand just to be sure !
Yeah it's real simple. I just used a a100k pot. You just got to hook one lug on the "out" pad of the PCB, one lug to ground and one lug to the out jack.
I don't remember exactly what lug goes where xD when I did it I used alligator clips to test everything before soldering :)
Here's another one I made a while back, the quarantine fuzz ! Such a nice PCB and big muff type fuzz. Looking at the raincoat schematic I only saw a 100nf to 10nf change, I should have socketed that cap just to see if it makes a big difference :p
Made those about a month or so ago, now I can post some pics :p. Both very nice octave fuzz pedals, but I really got a soft stop for the Propolis ^^, I think being a white stripes fanboy maybe is affecting my judgement :)
Added just a volume cut pot at the end of the propolis just to make it...
Finally got a photo compression app so I can post photos on the forum now xD.
Here's a build of the calamity fuzz, it's just awesome... If you haven't build it yet, order it now xD. I really love the calamity Jane graphics I did on this one :p
Yeah I hear you :p I bought 2 for trying it out and then selling them, I was real curious of what that pedal could do but now they're stuck in a plastic bin xD ain't got the courage to try and trouble shoot them.
The worst part of it all is maybe it's supposed to sound like that but I haven't...