Author Topic: Anyone else built a Thunderdrive from DIY Mod Kits?  (Read 1351 times)

Ghost Planet

Anyone else built a Thunderdrive from DIY Mod Kits?
« on: February 24, 2013, 04:31:33 PM »
I got the schematic for a Thunderdrive from their website and built it has the distortion in my tiny giant. It sounds really good. It's a super simple circuit, looks just like an Electra distortion with an MPSA18 transistor. I was just wondering if anyone else has built the circuit or the entire kit for that matter? They list all the schematics to their kits on their website. I'm thinking about buding the rattler next. A link to the schematic is below.

http://www.modkitsdiy.com/sites/default/files/product_files/the_thunderdrive_schematic.pdf

Renegadrian

Re: Anyone else built a Thunderdrive from DIY Mod Kits?
« Reply #1 on: April 24, 2013, 02:58:45 PM »
PNP fuzz face with diodes sticked at the end? wow that's original!!! ;D
They even cloned the idiot wah by tim escobedo, see tea philter... :-\
Done an' workin'=Too many to mention - Tube addict!

Kipper4

Re: Anyone else built a Thunderdrive from DIY Mod Kits?
« Reply #2 on: April 24, 2013, 04:52:15 PM »
Yes i built the thunderdrive.
from scratch it's an ok effect i wasnt blown away.
For a parts count pedal it rocks but i can still think of better.
I prefer the SHO
"Duck_Arse
otherwise, you might end-up with SOIC or gullwings, for surface mounts."


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

imguitardan

Re: Anyone else built a Thunderdrive from DIY Mod Kits?
« Reply #3 on: February 05, 2021, 01:19:31 PM »
Iíve got a Thunderdrive deluxe kit on the way. Itíll be my first build. I really got it bc I wanted a COT on the cheap. Can anyone tell me in laymanís terms what to swap out to make it a COT?  I donít understand schematics yet. Thanks

iainpunk

Re: Anyone else built a Thunderdrive from DIY Mod Kits?
« Reply #4 on: February 05, 2021, 04:31:24 PM »
welcome to the forum

at least, you need to learn how to read schematics, if you plan on doing more complex pedals in the future, or modifications to existing kits like this one. i recommend you build it first the way it was intended in this kit, its probably a solid, good sounding pedal to begin with, if you insist tho... there are a few changes needed:

collector to 9V resistor 4.7k -> 3.3k
in the kit, there is no emitter resistor, the cot has a 47ohm, a 330ohm and a 1kohm pot in series, and parallel to the 330ohm is a 47uF capacitor
add a 500pf capacitor parallel to the diodes.
the 2n5088 that is in the cot is a little lower gain than the mpsa18 in the kit, but i doubt it will make a difference.
skip the distortion controll, since its replaced with the 1kOhm pot in the emitter path to ground

cheers, Iain
half man - half snail - 6 feet to scale - Snail man's - not frail - He's been - to jail - snail man is fuccing real
『snailpilled』

imguitardan

Re: Anyone else built a Thunderdrive from DIY Mod Kits?
« Reply #5 on: February 05, 2021, 07:25:14 PM »
Thanks for the advice and the details.🙌