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Schaller - Fuzz [schematic]
Posted: 09 Jan 2008, 21:23
by Bernardduur
Also in a package; a non working Schaller fuzz
Schaller fuzz schematic from Analogguru's site; this version differs though:
- No C3
- C5 = 10 uF
Unit works now; sound sucks though
Transistors are BC (no further marks).
Posted: 10 Jan 2008, 01:43
by seniorLoco
Is that 4pdt switch ??!
Posted: 10 Jan 2008, 06:35
by Bernardduur
seniorLoco wrote: Is that 4pdt switch ??!
No a 4PST switch
Posted: 10 Jan 2008, 07:34
by seniorLoco
ahh yup ... looks cool tho
Posted: 10 Jan 2008, 09:30
by modman
Great pics BD!
I have a similar patient here Schaller too, didn't have the chance to post.
There a good chance that replacing the polarized electrolytes top and bottom by new ones will make a considerable difference, but check the voltages to we know what going on in the gain stages.
Case plastic too?
Posted: 10 Jan 2008, 19:50
by Bernardduur
I think so too yes.... but the owner won't let me! He likes the sound, dunno why
Voltages:
V+ = 9.03V
Q1:
C = 2.05
B = 0.63
E = 0
Q2:
C = 4.75
B = 1.69
E = 1.05
And yes, plastic case, metal underplate
Posted: 15 Jan 2008, 09:14
by analogguru
- No C3
possible, but C3 always was mounted on the solder side on all units I have seen.
analogguru
Posted: 15 Jan 2008, 10:57
by NickS
Welcome back, AG! Hope all is OK (see "AG content" thread in Members).
Good grief, that Schaller fuzz uses components I still have in my box. Those electrolytics....
Posted: 15 Jan 2008, 19:28
by Bernardduur
analogguru wrote:- No C3
possible, but C3 always was mounted on the solder side on all units I have seen.
analogguru
I checked when I got the unit if the C3 wasn't on the other side. It's not there
. Sounds pretty nice on high volume btw!
Re: Schaller - Fuzz
Posted: 10 Mar 2008, 01:04
by MoreCowbell
Pics of a different unit....
Re: Schaller - Fuzz
Posted: 10 Mar 2008, 01:22
by analogguru
That´s the older ge-transistor version probably with 2 x AC 192.
analogguru
Re: Schaller - Fuzz
Posted: 10 Mar 2008, 01:38
by MoreCowbell
analogguru wrote:That´s the older ge-transistor version probably with 2 x AC 192.
analogguru
I'm trying to buy it from the owner (bypassing the auction). Its a non working unit...I'm sure its just a fuzz face variation, but I'd still like to own it.
Re: Schaller - Fuzz
Posted: 24 Sep 2008, 22:06
by modman
Here are some pics of the older Ge unit, which might have gone under the name 'Fuzz Booster'? At least that's how this unit was listed on Ebay.
Re: Schaller - Fuzz
Posted: 02 Oct 2008, 18:42
by fosnal1950
It's one of the worst sounding fuzzes I know by modern standards - I used to play one back then !!
Alf
Re: Schaller - Fuzz
Posted: 03 Oct 2008, 13:03
by Alex Frias
fosnal1950 wrote:It's one of the worst sounding fuzzes I know by modern standards - I used to play one back then !!
Alf
Hummmm... I think now I'm into it!!!
Re: Schaller - Fuzz
Posted: 15 Nov 2008, 16:11
by plexilover
Are the guts this one of the running version?
A friend of mine has got one, not working, wired it the same way, components ok, no sound just humming...
Re: Schaller - Fuzz
Posted: 08 Jul 2010, 20:48
by lolbou
Some more guts showing different PCB placing and missing/removed part. These two units are currently for sale on a french ad site, both for around 150/200€, both claiming to be stock (which looks like a lie)... The enclosure style is different too.