HAO - Rumble MOD

kusi · Post by **kusi** » 02 Dec 2007, 13:19

hi

have a look at this very special circuit;
http://forum.musikding.de/cpg/displayim ... at=0&pos=0

regards, kusi

jakerandall · Post by **jakerandall** » 02 Dec 2007, 13:39

kusi any chance of a rust booster.

Post by **modman** » 02 Dec 2007, 13:54

jakerandall wrote:k**i any chance of a rust booster.

No chance at all: all hard work (not by me though)
HAO Rust Driver gut shots - schematic - manual PDF - pcb layouts

eddieod · Post by **eddieod** » 03 Dec 2007, 19:44

Hi everyone,

Kusi, can you specify T1/T2 for us? Just ordinary 2SC1815's?

Like to hear more from you.

Keep up the good work!

Ed's Custom Shop
Edwin Thoen

kusi · Post by **kusi** » 19 Dec 2007, 08:30

Hi edwin,

yes, the transistors are 2SC1815.

regards, kusi

analogguru · Post by **analogguru** » 25 Dec 2007, 14:38

Here some guts:
http://www.digimart.net/images/64/DS00319588_1.jpg
http://www.digimart.net/images/64/DS00319588_3.jpg

analogguru

eggstein · Post by **eggstein** » 07 Apr 2008, 09:49

Hi, I was wondering if the numbering of the pots correct?
Also if they are correct should the 2nd lug of the dual pot stay open?
I built this without paying attention to the numberings(thought it was the 1-3 left to right) and resulted with no sound.

madmac · Post by **madmac** » 19 Dec 2008, 12:48

Hi guys

Found this while looking around. Its not mine and not verified.

madmac · Post by **madmac** » 19 Dec 2008, 12:52

gut shot

Pedalpusher · Post by **Pedalpusher** » 02 Mar 2009, 18:19

One of these days I'm going to build an "improved" version of this pedal. The colour knob has a spot where it sounds good with single coils and another where it sound good with hums. I'd just use a switch to with 2 fixed resistances and label it Hum/Single, then figure out where to put a more useful tone control. Maybe even a bass and treble control.

idy · Post by **idy** » 30 Dec 2015, 00:33

Opened up one of these. The schematic above doesn't quite get the dual pot/boost-drive thing. The toggle switches between the two halves of the dual pot, one of which has a low limit resistor and the pair of diodes. Why they bothered with the dual pot I miss/ escapes me.