Page 1 of 1
EHX - Axis [schematic]
Posted: 15 Aug 2007, 10:37
by pf_fan
Those pics can be compared with the schematic from GEO-Fex:
http://www.geofex.com/FX_images/eh_axis.gif
Posted: 15 Aug 2007, 15:16
by markm
Hey, there's some nice soldering huh?

Posted: 19 Aug 2007, 12:40
by krome_magnon
Wonder if the decaying sponge thing and the spiderwebs add some vintage tone mojo?
Posted: 19 Aug 2007, 21:45
by soulsonic
krome_magnon wrote:Wonder if the decaying sponge thing and the spiderwebs add some vintage tone mojo?
Hey that's at least half of it! Once I cleaned the yellow "mystery powder" (decayed foam) out of my old Shure 55 it wasn't quite the same.

Posted: 03 Sep 2007, 23:56
by Meanderthal
I've built this... very much one o them in-a-godda-da-vida type fuzzes. Cool if ya wanna sound... old...

Posted: 04 Sep 2007, 01:30
by analogguru
I've built this...
Hmmm....really ?.....from the schematic circulating around ? then you haven´t build THIS....
Because THIS is more like the Mosrite Fuzzrite, Orpheum Fuzz, Shin-ei FY-2 (or similar units) with a 100k and 47k in the collector path of the second transistor and a 100n from the node between the resistors to GND.
analogguru
Posted: 04 Sep 2007, 08:23
by Dan N
Thanks for the photos!
AG, what would be the PNP compliment to the 2N5133?
Posted: 04 Sep 2007, 09:03
by analogguru
2N 5133: 18V/50mA/200mW ß:60-1000/1mA fg>40MHz
A BC239C, a BC 550C or a 2N5088 should be usable as a replacement.
So a PNP equivalent would be for example a BC 309C or a BC 560C...
analogguru
Posted: 04 Sep 2007, 11:15
by Meanderthal
analogguru wrote:I've built this...
Hmmm....really ?.....from the schematic circulating around ? then you haven´t build THIS....
Because THIS is more like the Mosrite Fuzzrite, Orpheum Fuzz, Shin-ei FY-2 (or similar units) with a 100k and 47k in the collector path of the second transistor and a 100n from the node between the resistors to GND.
analogguru
Yep, it is one of those... the weird 'tone' control, etc. It wasn't the Mayer tweaked FF, rather it was the Orpheum type- AKA the 2 knob Foxey Lady.
However, I did build it from a schematic that had been floating around for a while, so it may not be exactly the same(didn't compare).
I used 2n5133, I socketed the trannies, and found that they had more grit than 2n5088,89, or mpsa18. Or maybe I fooled myself because they look so cool...
