Maestro - FZ-1B Fuzz-Tone

MoreCowbell · Post by **MoreCowbell** » 08 May 2008, 15:14

OK...did a search and it seems we have threads for the FZ-1A and the FZ-1S, but not the FZ-1B...

Gut shots....

Here's what I have so far :

seniorLoco · Post by **seniorLoco** » 09 May 2008, 01:13

2N3860 small signal NPN
hFe min 150 max 300

seniorLoco · Post by **seniorLoco** » 09 May 2008, 01:22

scroll down here
and click on the maestro fz-1B link

MoreCowbell · Post by **MoreCowbell** » 09 May 2008, 01:57

seniorLoco wrote:scroll down here
and click on the maestro fz-1B link

Thanks...but that schematic differs from the unit in the pictures.

(at the very least a few of the values differ)

hamster · Post by **hamster** » 09 May 2008, 02:30

C3 should not go to V+, only R9 (offboard) and R11.
R5 & R8 = 22k are 2k2 on your sample
R6 = 120k is 56k on your sample

Rest looks good.

MoreCowbell · Post by **MoreCowbell** » 09 May 2008, 03:13

hamster wrote:C3 should not go to V+, only R9 (offboard) and R11.

no caps are shown going to V+ in my prelim schematic...i assume that youre looking at the pdf and that the cap in the pdf shouldnt connect to V+

I cant tell here its going in the photos. Originally, before looking at the pdf, i had assumed it went to a pot, but after looking at the pdf I'm sure it connects to R9 / R11

R6 = 120k is 56k on your sample

green - blue - yellow = 560k, not "56k"

if it was green - blue - orange it would be 56k...but it's not.

MoreCowbell · Post by **MoreCowbell** » 09 May 2008, 03:24

Here's the updated schematic, using "missing" values from the PDF...
Thanks for the link and additional info !

hamster · Post by **hamster** » 09 May 2008, 03:59

Jack

MoreCowbell · Post by **MoreCowbell** » 09 May 2008, 04:14

This photo shows C3 as either a .15uf or a .1uf ....hard to tell which from the pic...you have it labeled as .22 (like the factory schematic) ..i thought it looked more like a .15uf, so I labeled it as such. In truth, any of the values from .1uf - .22uf should work fine.

http://farm2.static.flickr.com/1183/137 ... 39ffbe.jpg

MoreCowbell · Post by **MoreCowbell** » 09 May 2008, 04:30

Yet another version FZ-1B factory schematic:

: Maestro Fuzz-Tone FZ1B service notes schematic

seniorLoco · Post by **seniorLoco** » 09 May 2008, 05:03

oh my ...we need to call in CSI

MoreCowbell · Post by **MoreCowbell** » 09 May 2008, 05:11

seniorLoco wrote:oh my ...we need to call in CSI

too many dang versions of the FZ-1B !

analogguru · Post by **analogguru** » 22 Jun 2008, 21:21

Here is my - traced and verified - take on version 1 (of three different) of the Maestro FZ-1B Fuzztone.

Maestro - FZ-1B (v. 1) schematic

enjoy,
analogguru

Post by **modman** » 23 Jun 2008, 16:40

Nice! Now we have:

schematic[/url]
Maestro Fuzz-Tone FZ1 (1962) patent & schematic
Maestro Fuzz-Tone FZ1-A (1965) gut shot discussion & schematic
Maestro Fuzz-Tone FZ1-B schematic by AG
Maestro Super Fuzz FZ1-S DIY project files at GGG - gut shots[/list][/size]

Everybody, don't forget you can check what's online by brand in the schematic & gut shot links

MoreCowbell · Post by **MoreCowbell** » 23 Jun 2008, 18:08

modman wrote:Nice! Now we have:

schematic[/url]
Maestro Fuzz-Tone FZ1 (1962) patent & schematic
Maestro Fuzz-Tone FZ1-A (1965) gut shot discussion & schematic
Maestro Fuzz-Tone FZ1-B schematic by AG
Maestro Super Fuzz FZ1-S DIY project files at GGG - gut shots[/list][/size]

Everybody, don't forget you can check what's online by brand in the schematic & gut shot links

Thats "somewhat" correct...we have at least 3 different versions of the FZ-1B, all of which are confirmed by photos of multiple units. FZ-1B's can have 2 transistors or 4 transistors, depending on the version. AG's is correct for version 1, though the unit I traced had a couple different values.

It may be useful to catalog the different versions and factory schematics / manuals as well.

MoreCowbell · Post by **MoreCowbell** » 23 Jun 2008, 18:14

BTW...this is the "final" from the unit I traced...it is essentially the same as AG's, save for a couple small value differences.

Kinki fuzz · Post by **Kinki fuzz** » 13 Aug 2008, 05:56

Hi everybody,

Regarding different versions of this box, I've found essentially 2 (maybe there are little component value differences betwen unit, bot more or less the same). One of them is the 2 transistor kind, like the the one from analogguru, and there's the 4 transistor version, like that shown on the photo by MoreCowbell. But you're talking about 3 versions, what about the 3rd one?.

I will try building both or the three of them on perfboard, maybe next month or so, just to see the differences, and them build properly my fauvorite (or maybe all of them, beeing the fuzzfreak I am). I'll tell you about it.

I also built the FZ1S (which i think is great), but is really different from the FZ1B according to the samples of this last one I found in the net, FZ1S is more... massive, more like a SuperFuzz or so.

Post by **modman** » 20 Aug 2008, 10:20

Maestro Fuzz-Tone FZ1 (1962) patent & schematic
Maestro Fuzz-Tone FZ1-A (1965) gut shot discussion & schematic
Maestro Fuzz-Tone FZ1-B version 1 schematic by AG
Maestro Fuzz-Tone FZ1-B version 2 schematic by Andrew Carrell
Maestro Super Fuzz FZ1-S DIY project files at GGG - gut shots

Here's the new overview for the Fuzz Tone, including the FZ1-B v2

MoreCowbell wrote:It may be useful to catalog the different versions and factory schematics / manuals as well.

If you find links to any of them, do post them. I seem to remember we have some of them here, will try to read through the fuzz tone threads.

ChrisFFTA · Post by **ChrisFFTA** » 23 Aug 2008, 11:37

which version did keef use?

fgibford · Post by **fgibford** » 01 Nov 2009, 20:59

I'm sure you guys might already have this but here it is again. I copied it from the schematic lable inside the unit before I sold it on ebay. One thing to note on the 4 transistor version is the balance knob which is the 50k stacked pot. It worked just like a balance on a stereo where left chanel is fully clean and right chanel is fully fuzz. Also there was no noticeable volume change, as you dial in the dirt you can still hear your clean signal, it diminishes at the same rate as the fuzz increases.

Maestro - FZ-1B Fuzz-Tone [schematic]