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Messages - SGJarrod

#1
So I recently built a Meathead and am wondering what trannies u guys used for Q2..... I built this on vero board (to easy of a build not too) and also added a spst switch to select between the input cap of .01 (normal) and .1 (dark version)....

I went with a 2n4401 in Q2, I tried 2n3904 and 2n5088 but the 2n4401 was the hands down winner.... I do not have any other trannies on hand and was wondering what else to try if I place an order soon....

FYI.... the "dark meat" switch is a must mod for this pedal......2 versions in one...why not  :o

so let me know what u guys tried and liked....Thanks to all
#2
If someone tries the 549c's please let us know the results....

I was able to tell a difference in gain between the 5088's and 5089's.....not alot of diff, main diff was the thickness and punch of the sound....... and the 549's seem to have plenty of gain and punch in my build... It is every bit as gainy as the 5088's in a creamy dreamer I just built for my cousin.... and I doubt jumping the emitter resistors on the Q2 and Q3 compaired to the 100R resistors is that huge of a difference....

I tried all the above mentioned in the mayo so I can see there being a certain gain cap that does not really help to go over....

If you find that article I would be interested as well  ;D
#3
Issue resolved... I got the BC549's and the 2n5089's that Bean sent me in the mail, neither of those had the noise....so, I guess the 5089's I had were from a bad stock  ???

I stuck with the BC549's, they were the quietest and had most clarity and punch......The MAYO is a GAIN MONSTER!!

Thanks MadBean... YOU ROCK!
#4
also I have already ran thru all the parts before I reflowed the solder and they are all correct
#5
here is some more food for thought.... I just got done trying different trannies; 2n3904 and 2n5088 do not have the noise..... maybe the extra gain of the 2n5089's.....I actually really enjoyed the trying all the trannies....its the first time I have ever done that...... I love the 5089's the most, alot more aggressive and punchy...

any how... I do not have an operating multi meter right now so readings may have to wait....Does the info from above help or bring anything else to mind?
#6
just got home from work and switched out C1 for a new cap and no difference, still have the same noise  ???
#7
so, basically try a new cap in C1?   
#8
5089's both times, and I used the diodes that are recommended in the build...1n914, and 1n4001 for protection/polarity....
#9
Tech Help - Projects Page / Mudbunny/ Big muff Noise
October 14, 2010, 02:51:48 AM
So about a week ago I finished my Mudbunny and I must say this thing rocks and is mean.. I do have one issue.. The pedal operates and sounds perfect but when I have the pedal on and my guitar volume rolled off there is a weird scratching noise coming from the amp(it happens on both my amps), the more gain the more noise... now I do understand that muffs do have white noise but this is above the normal high gain noise. It sounds like an old record player between songs, you know the sound of the needle scratching thru the speaker. I just reflowed every drop of solder in the pedal and no difference.

I ran thru the board with a audio tester and it seems like the noise appears after the first set of diodes and gets worse after the 2nd set of diodes, it goes thru Q3 and Q4 all the way to the volume pot and then out. I tried new trannies out of curiosity and that did not help. All the parts are high quality new parts from Small Bear.

Anyone got advice or help? An idea?  ???
#10
ya I'm a tard.... I had the plus lead of the snap on the outer positive in the DC Jack and not the inner one...funny this is my sixth pedal build and I never knew that made a difference...guess I got lucky on the others   :o

thanx guys
#11
So I just finished my first MadBean build. I did the MuddyBunny and it rocks.... But it does not work with a power supply..only a battery... I used the normal 9v dc jack from SmallBear and wired it center neg like I always do... When you plug in a cable from my Dunlop Power Brick it cuts of the battery but does not power the pedal... I just got done switching out the dc jack thinking it was defective but I got the same results.

I used the wiring on this link from General Guitar Gadgets...any advice or ideas?

http://www.generalguitargadgets.com/diagrams/switch_lo_3pdt_ig_dcjack.gif?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a
#12
General Questions / Re: Mud Bunny pots
September 27, 2010, 11:14:41 PM
right on.... I have both on hand but just wanted to be sure..... cuz u know once u have everything in the box all nice and neat you really do not want to take it all back out  ;D
#13
General Questions / Mud Bunny pots
September 27, 2010, 11:00:14 PM
I see that on the parts lists on V1 and V1.1 the pots are all 100kB and on the V1.5 the Vol is 100kA, I bought this board last month, does it matter which I use for the Vol pot?......I understand the difference in the tapers but do not know it there are any other effects on the circuit...Thanks
#14
Mods / Re: MudBunny/ Mayo mid switch
September 07, 2010, 08:32:20 PM
Perfect...Thanks.... the mod was how I thought  ;D
#15
General Questions / Re: MudBunny/ Mayo PCB/Layout values
September 07, 2010, 08:28:10 PM
the cap values that Brian uses are deffinately much more common values and easier to find at local electronic stores or even laying around my desk, which is a plus in my book