Trumpeter
- Thread starter K Pedals
- Start date
caiofilipini
Well-known member
So clean!
Chuck D. Bones
Circuit Wizard
You really kicked it up a notch with those Cricut labels. Looks great.
chongmagic
Well-known member
How much did the cricut machine set you back?
K Pedals
Well-known member
They’re like $150 on amazon so I ended up paying $200 after getting some vinyl rolls and transfer paper...
Danbieranowski
Well-known member
Looks excellent. What do the resistors between the 3pdt and main PCB do?
K Pedals
Well-known member
Nothing just 0 ohm resistors
Just looks cleaner to me
Danbieranowski
Well-known member
Understood. Yeah I like the look too.
Chuck D. Bones
Circuit Wizard
In the sales world that call it "apparent value."
Chuck D. Bones
Circuit Wizard
[snicker]
I'll bet that pot would have a better feel if it was C-taper.
I'll bet that pot would have a better feel if it was C-taper.
K Pedals
Well-known member
Let me check it out
Thanks for checking! I used tin can versions of the 2n2907 so I thought maybe I had a issue with mine
all in all the "trumpet" sounds are kinda hard to achieve but even so it's a real good sounding fuzz ! Very versatile 
K Pedals
Well-known member
Yeah I did some research and they say that the hFE on that transistor is 187Hfe but I couldn’t find anything on the other one... so none of the can ones I had measure in that range... I had some MPS2907A that was perfect... and I socketed the other one and tried a bunch of different values and they really didn’t have any affect... I never could get it to sound quite right... or like the real one... but it is a real good sounding fuzz...
Kroars
Well-known member
Late reply, but I thought it may be worth it. I recently built a couple of these and had the same experience with it not quite reaching that “trumpet/trombone” sound with various transistors in the 187 hfe range. Found these metal can 2n2907a’s at SB and a lot of them were right in that range. Fortunately, I socketed the board and when I threw one of those metal cans in (183 I believe) it came to life. Maybe a little mojo is all you need at times.
Just in case:
