Do-it-yourself pedal building
Moderator: Ghost Hip
Forum rules
The DIY forum is for personal projects (things that are not for sale, not in production), info sharing, peer to peer assistance. No backdoor spamming (DIY posts that are actually advertisements for your business). No clones of in-production pedals. If you have concerns or questions, feel free to PM admin. Thanks so much!
tuffteef
IAMILFFAMOUS
Posts: 7890 Joined: Tue May 26, 2009 7:05 pm
Location: Downunderverse
Post
by tuffteef » Sat Jun 23, 2012 12:02 am
my beloved civil war muff clone using the mudbunny board has mysteriously died
im not even sure where to start ive checked for shorts checked joints tugged wires checked power done a good eyeballing
it worked great but no moe!
the pots still wipe volume tone sweep gain
but rather the tasty smooth fuzz it just crackles and fizzles a little
where to now?
devnulljp
IAMILFFAMOUS
Posts: 3989 Joined: Fri Oct 09, 2009 11:29 pm
Post
by devnulljp » Sat Jun 23, 2012 2:21 am
Switch is fucked?
Scruffie
Admin
Posts: 4647 Joined: Sun Jun 07, 2009 8:46 pm
Location: London.. ish, Uk
Post
by Scruffie » Sat Jun 23, 2012 5:03 am
Why post your voltages of the 4 transistors good sir! And yeah you can check your foot switch for continuity too... google it.
tuffteef
IAMILFFAMOUS
Posts: 7890 Joined: Tue May 26, 2009 7:05 pm
Location: Downunderverse
Post
by tuffteef » Sat Jun 23, 2012 5:43 am
i must be checking voltages wrong cause the ones im getting are fucked do explain to make sure im doing it right
Last edited by
tuffteef on Sat Jun 23, 2012 5:58 am, edited 3 times in total.
Scruffie
Admin
Posts: 4647 Joined: Sun Jun 07, 2009 8:46 pm
Location: London.. ish, Uk
Post
by Scruffie » Sat Jun 23, 2012 5:46 am
Multimeter, poke the black lead to ground, red lead, poke it to each leg of the transistor C,B,E Q1-4. Make sure your meter is set to the right range too obv.
tuffteef
IAMILFFAMOUS
Posts: 7890 Joined: Tue May 26, 2009 7:05 pm
Location: Downunderverse
Post
by tuffteef » Sat Jun 23, 2012 5:58 am
Q1
E 7.96
B .01
C .01
Q2
E 5.47
B 1.38
C 0.87
Q3
E 4.50
B 0.74
C 0.14
Q4
E 4.50
B 0.74
C 0.14
(i think there the other way around though CBE rather EBC)
i think
Scruffie
Admin
Posts: 4647 Joined: Sun Jun 07, 2009 8:46 pm
Location: London.. ish, Uk
Post
by Scruffie » Sat Jun 23, 2012 6:09 am
Yeah they should be C,B,E... Yo Q1 voltages is mad wrong, look around there for a short/issue.
tuffteef
IAMILFFAMOUS
Posts: 7890 Joined: Tue May 26, 2009 7:05 pm
Location: Downunderverse
Post
by tuffteef » Sat Jun 23, 2012 6:13 am
Scruffie wrote: Yeah they should be C,B,E... Yo Q1 voltages is mad wrong, look around there for a short/issue.
im weirdly not getting anything from the base and emitter of Q1
so check contin from those pins?
tuffteef
IAMILFFAMOUS
Posts: 7890 Joined: Tue May 26, 2009 7:05 pm
Location: Downunderverse
Post
by tuffteef » Sat Jun 23, 2012 11:44 pm
Q3 was actually the one not registering any voltage but i replaced it and still nothings changed ive probed from those pins around and everything seems fine im confused as hell