ORPHEUM FUZZ !

[Dan N]

There seem to be different versions. Ryan posted some cool pics in this thread:

http://www.diystompboxes.com/smfforum/index.php?topic=46251.0

Analogguru has a schematic here for a Ge version:

http://analogguru.an.funpic.de/

The values Yun posts must come from a third version.

Funny, when we worked on Ryan's pedal, I unknowingly had Analogguru's schematic in my files. In retrospect, I would have just adjusted his schematic to reflect the changed values of the new version.

[analogguru]

Maybe you look for comparision purposes at the Fuzz part schematic of the "Acoustic 360" and the "Benson 330H" posted (new) on my site.

Acoustic 360 uses a silicon for the first stage and a Germanium for the second stage.
For the 2 N 1306 you can use an AC127 or similar.

In principle the Orpheum is a copy of the early Mosrite Fuzzrite - you can find inside pictures and a schematic here:

http://eu11.stripper.jp/pulcino/blog/archives/cat_mosrite_fuzzrite.html

also the early Guild Axis-Fuzz used the same circuit, inside-picture can be found here:

http://www.electroharmonix.ronsound.com/gallery/foxey/foxey_lady.jpg

they only changed the input resistor from 10 M to 2x 10 M in paralell = 5 M.

All silicon version used the 100k (in series with 47k) in the collector of the second stage.

when i find some time i will write an article of this stuff with nice pictures.

The Orpheum Fuzz was also sold as the E.U. Wurlitzer "Fuzzer Buzzer":



analogguru

[Dan N]

Very interesting! Thanks!

[nightingale]

Cool,
Let me know if you need any pics of the one seen in the other thread for your article.
I am now the owner of that one.
regards,
ry

[Yun]

here's my take on this fuzz, i mostly stayed true to the amplifier handbook that i said about in my earlier post....



I just built it like that and it sounds AMAZING!  Much more thicker, and nastier tone.  Think of it as a maestro fuzz-tone with a thicker and meaner attitude.  The tone control sounds very (shockingly) much like the BMP's tone stack....

ENJOY!!!!!

[lucaneo]

Can you make some samples?

I've done a layout of your mod...http://img208.imageshack.us/my.php?image=orpheumfuzzmodificacr5.gif

[The French connection]

There's a lot of stuff in the layouts gallery...

http://www.aronnelson.com/gallery/main.php/v/DRAGONFLY-LAYOUTS_0/album18/album144/album109/orphclone2.mp3.html

Dan

Edit: hum but not necessary with the mod...

[lucaneo]

I've built the orpheum fuzz, it's nice, but for me it is uncontrollable ( I would have built the mostrite, but I've made this and I  wanna mod it  )
So" the Yun mod" seems cool and I was asking a sample about it....

[GREEN FUZ]

I've built the orpheum fuzz, it's nice, but for me it is uncontrollable...

In what way? Can you describe the symptoms?

[lucaneo]

It's not easy...By the way there is lot of noise, too trebles tone and I use it only with ds-2 or ts 808...Only orpheum is not a good sound for me.  I've listened the Dragonfly germanium mosrite and it seems really better. Anyway the Yun mod seems good, I believe I'll try it!

[tcobretti]

All of that style of fuzz are very trebly.  You can try to fatten it up by using a larger output cap.  The Germanium Mosrite will not be much less trebly.  If you want fat fuzz you should build a Fuzz Face.

[GREEN FUZ]

Swapping the .0022uf cap for a higher value makes a difference aswell. Try a .01uf to start with.

EDIT: On the original schematic that is.

[lucaneo]

ok thx!