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

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
User avatar
modman
a d m i n
Information
Posts: 4897
Joined: 19 Jun 2007, 16:57
Has thanked: 4410 times
Been thanked: 2139 times

Post by modman »

The FZ-1A was built at three different locations:
Kalamazoo
Lincolnwood
Nashville (for the 2001-2009 reissue)

Image

Please have a look at this terrific write-up: https://www.coda-effects.com/2016/12/vi ... -1966.html

Correct FZ-1A schematic from the Complete Maestro Service Notes:


Maestro Service notes average FZ-1A.jpg

gibson-maestro-fz-1a-fuzz-tone 01.jpeg
gibson-maestro-fz-1a-fuzz-tone 02.jpeg
gibson-maestro-fz-1a-fuzz-tone 03.jpeg
gibson-maestro-fz-1a-fuzz-tone 04.jpeg
gibson-maestro-fz-1a-fuzz-tone.jpeg
gibson-maestro-fz-1a-fuzz-tone 06.jpeg
gibson-maestro-fz-1a-fuzz-tone 07.jpeg
gibson-maestro-fz-1a-fuzz-tone 08.jpeg
gibson-maestro-fz-1a-fuzz-tone 09.jpeg
gibson-maestro-fz-1a-fuzz-tone 10.jpeg
gibson-maestro-fz-1a-fuzz-tone 11.jpeg
gibson-maestro-fz-1a-fuzz-tone 12.jpeg
gibson-maestro-fz-1a-fuzz-tone 13.jpeg
gibson-maestro-fz-1a-fuzz-tone 14.jpeg
gibson-maestro-fz-1a-fuzz-tone 15.jpeg
gibson-maestro-fz-1a-fuzz-tone 16.jpeg
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal

User avatar
bumblebee
Diode Debunker
Information
Posts: 736
Joined: 18 Aug 2007, 00:05
my favorite amplifier: ‘65 Twin Reverb
Completed builds: Fuzz & Preamps mostly.
Has thanked: 231 times
Been thanked: 58 times

Post by bumblebee »

1.5 volt fuzz? WTF!?!?!?!

:shock:

User avatar
modman
a d m i n
Information
Posts: 4897
Joined: 19 Jun 2007, 16:57
Has thanked: 4410 times
Been thanked: 2139 times

Post by modman »

MoreCowbell wrote:The Tonebender MKI is quite similar to the Maestro....
You are right, the patent file has a handdrawn schematic (3 transitor fuzz). Seem like the tonebender is older than the 2 transistor basic fuzz? AG made remarks in this direction in another thread. Just let me look.

My initial feeling would be -- doens't it splatter enough on 2 transistors with 1.5V? The whole setup seems so disproprotionate...
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal

User avatar
royaltoots
Breadboard Brother
Information
Posts: 88
Joined: 07 Oct 2007, 17:55
my favorite amplifier: Davoli Studio 60
Location: London
Has thanked: 3 times
Been thanked: 5 times

Post by royaltoots »

modman wrote:Some gut shots from an Fuzztone -- but with one AA?
the photos are of the FZ1-A - the 1.5V version that they started producing in '65, but the first version (in the patent - 1962) was 3V.
I haven't tried building it, but I have an orig FZ1-A - it sounds good with powerful pickups, but it doesn't give much of a volume boost and sounds v weak with some single coils. But it's not really a 'fuzz' as we know the term. I didn't like it at first, but now appreciate it for what it can do.
If you know the Seeds' 'Pushin Too Hard' the lead in that is the Maestro Fuzztone sound.

User avatar
analogguru
Old Solderhand
Information
Posts: 3238
Joined: 26 Jun 2007, 13:58
Been thanked: 124 times
Contact:

Post by analogguru »

Here some entertainment on ebay :lol: :lol: :lol: :

The seller is claiming: "original ´64 MAESTRO fuzzbox FZ-1A"
https://cgi.ebay.com/original-64-MAESTR ... dZViewItem

I always thought "Satisfaction" was recorded with an FZ-1 and not a FZ-1A cause the FZ-1A was introduced later (in 1965).

At the first view it really looks very old:
http://img1.iwascoding.de/2/2007/11/24/ ... D67B75.jpg

Now then lets have a closer look.... yes it is indeed a FZ-1A and the serial number on the case is in fact 18373:
http://img1.iwascoding.de/2/2007/11/24/ ... FA5BE2.jpg
what means that it was produced in early 1966 (not 1964).

But now.... sit down, relax and "hold tight" for the guts...Hey :!: , whats that :?: :shock: :
http://img1.iwascoding.de/2/2007/11/24/ ... 6D7FAE.jpg

we can see perfboard, a 9V-clip instead of the 1,5V battery-holder.... the resistor and electrolytics seem to be original... But whats this: silicon-transistors ???

Ok, here for comparision how it should look like:
Maestro FZ-1A guts (serial number approx. 17.700)

So far the claims on evilbay concerning the terms "original" and "exact".

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

User avatar
frank.clarke
Breadboard Brother
Information
Posts: 114
Joined: 25 Oct 2007, 19:00
Been thanked: 1 time
Contact:

Post by frank.clarke »

The box is Kalamazoo :). Keith Richard lived across the street from Keith Richards, and he swore by the FZ-1A!

User avatar
bajaman
Old Solderhand
Information
Posts: 4549
Joined: 26 Jun 2007, 21:18
Location: New Brighton, Christchurch, NZ
Has thanked: 596 times
Been thanked: 2061 times

Post by bajaman »

and he swore by the FZ-1A
:lol: :lol: instead of AT it :?:
bajaman

User avatar
analogguru
Old Solderhand
Information
Posts: 3238
Joined: 26 Jun 2007, 13:58
Been thanked: 124 times
Contact:

Post by analogguru »

The next bullshit:
https://cgi.ebay.com/ws/eBayISAPI.dll?V ... otohosting

this guy wants to make us believe that his Fuzztone is from 1964 and the same with which "Satisfaction" was recorded. "Satisfaction" was not recorded witrh an FZ-1A it was a FZ-1, this unit is a FZ-1A, with a serial number of 32.093 :roll: :shock:
http://i20.ebayimg.com/08/i/000/c7/94/95e4_3.JPG

The highest serial number for a FZ-1 would be < 5000.

Then we have the inspection sticker:
http://i15.ebayimg.com/03/i/000/c7/94/9686_3.JPG

7115 (March 1971) would be a more reasonable value for serial number 32.093, but I think this would be a little bit too late.

No guts, but anyway you will get the seldom original box, even when it is a little bit damaged:
http://i10.ebayimg.com/05/i/000/c7/94/9d63_3.JPG
http://i5.ebayimg.com/04/i/000/c7/94/93c3_3.JPG

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

User avatar
frank.clarke
Breadboard Brother
Information
Posts: 114
Joined: 25 Oct 2007, 19:00
Been thanked: 1 time
Contact:

Post by frank.clarke »

But it has Eric Johnston's rubber band! He recorded "Cliffs of Satisfaction" with it.
Actually, this is all good. An antique fuzzbox is really all in the mind, so you are paying for the provenance, or True Lies.

Here's my FZ1-A/3-Knob Tonebender mixup:
http://www.guitar-pedals-effects.com/Toneblender.html

User avatar
analogguru
Old Solderhand
Information
Posts: 3238
Joined: 26 Jun 2007, 13:58
Been thanked: 124 times
Contact:

Post by analogguru »

cool (new) website, Frank !

100free doesn´t allow deep links, so for referring to my schematics it is better to use my ohost.de account:

http://analogguru.an.ohost.de

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

User avatar
Trigger
Information
Posts: 3
Joined: 12 Dec 2008, 05:31

Post by Trigger »

Here is a picture of my FZ-1A. I believe this is completely stock, right down to the attached guitar cord.
Attachments
Gibson Maestro Fuzz 001.JPG

User avatar
BJF
Resistor Ronker
Information
Posts: 269
Joined: 03 Nov 2007, 10:37
Has thanked: 2 times
Been thanked: 69 times

Post by BJF »

Hi,

I can say about the sound from first having resurrected an FZ1A-that had been on tour and jut about anything that could go wrong at a tour to a fuzz pedal happened to it but this fuzz belonged to the King of Cheese and it was part of a whole bag of fuzz pedals that had broken down during the tour.This pedal was powered by 1V5-hey it's fuzzpedal

Anyway setting this pedal up it needed rebiasing and extensive mechanical care but the sound when biased............oh yea I can relate to the Attack knob that such a sound must have a control the duration...........


Years later I got another one in repair as a friend had bought a broken one a yardsale or something but since I knew and remebered the sound I felt I could take this on as a repair- now this unit was powered from 3V0........but about he same circuit and aswell needeing a rebias and mechanical care to work reliably again.
Germaniums drift and sometimes not to handsomely, which makes repair not really a paint by numbers thing.

Absolutely at the time of the birth of this why not try the newest components and this circuit is historical in that it clearly shows the difference in how techincians that are not musicians think:
Yikes it sounds broken-let's add a control to make this controllable in duration......
Oh yea or maybe the designers had no clue at all what they were doing but were just happy that it worked since they would have had no clear view of nonlinear amplification........

I don't know but I dearly enjoyed the sound and the Gibson was the only fuzz of this big bag of non working fuzzes that I'd would have liked to keep.

Oh yea the King of Cheese is a guitargod;)

Have fun
BJ

User avatar
Rook
Information
Posts: 20
Joined: 12 Nov 2010, 20:48

Post by Rook »

Apparently these bad boys are made by Gibson. My dad had this thing stashed away and gave it to me today! Its not original, its a reissue, but still awesome. I scanned the 4 page manual that came with it which includes a schematic. and im about to take some pictures which will most likely be done by the time the pdf is uploaded.

http://www.2shared.com/document/NY6ANmMj/hpsc4.html

Image

Image

Image

Image

:horsey:

User avatar
toneman
Resistor Ronker
Information
Posts: 343
Joined: 17 Jul 2007, 13:05
my favorite amplifier: anything that works
Completed builds: meatolation, wobolation, ringolation clones, PAiA synths/modulars, dipthonizer clone, MOTM modules, pedal mods and repairs
Location: sacatomatoes, Kali4neeaa
Has thanked: 183 times
Been thanked: 45 times

Post by toneman »

What the F :?:

This:
http://www.2shared.com/document/NY6ANmMj/hpsc4.html

leads to this:
download
WhiteSmokeWriterGeo5002_en.exe

My Symantic Endpoint Protection scan doesn't see a virus, but.......

rook, Joined: Fri Nov 12, 2010 10:48 pm,
Where's the pdf?

T :?:
Tone-to-the-Bone

User avatar
jrod
Resistor Ronker
Information
Posts: 407
Joined: 09 Jan 2009, 14:24
Has thanked: 425 times
Been thanked: 46 times

Post by jrod »

Cool unit! Thanks for sharing the manual! :thumbsup

User avatar
toneman
Resistor Ronker
Information
Posts: 343
Joined: 17 Jul 2007, 13:05
my favorite amplifier: anything that works
Completed builds: meatolation, wobolation, ringolation clones, PAiA synths/modulars, dipthonizer clone, MOTM modules, pedal mods and repairs
Location: sacatomatoes, Kali4neeaa
Has thanked: 183 times
Been thanked: 45 times

Post by toneman »

Found this manual and several other Maestro at another link....
Just google and you'll find phaser, stage phaser, fuzz and fuzz-sustain pedals.
Complete service manuals including schematic and mechanical drawing and parts list.
T
Tone-to-the-Bone

User avatar
Rook
Information
Posts: 20
Joined: 12 Nov 2010, 20:48

Post by Rook »

hm, my bad. i dont know how to post a pdf. i havent used that site before, but its apparently no good cuz the link sent me to a random site too.

User avatar
Rook
Information
Posts: 20
Joined: 12 Nov 2010, 20:48

Post by Rook »

oh it does work. you just gotta go past their huge advertisement that only consists of a download button :|
Down at the bottom they have this little thing: "Save file to your PC: click here" <-- click that instead of the big download button.

User avatar
toneman
Resistor Ronker
Information
Posts: 343
Joined: 17 Jul 2007, 13:05
my favorite amplifier: anything that works
Completed builds: meatolation, wobolation, ringolation clones, PAiA synths/modulars, dipthonizer clone, MOTM modules, pedal mods and repairs
Location: sacatomatoes, Kali4neeaa
Has thanked: 183 times
Been thanked: 45 times

Post by toneman »

got it. thanx!
Tone-to-the-Bone

User avatar
modman
a d m i n
Information
Posts: 4897
Joined: 19 Jun 2007, 16:57
Has thanked: 4410 times
Been thanked: 2139 times

Post by modman »

If there a file types that do not upload, please let me know, I just have to enable them, as I did for pdf's long time ago...
Do let me know if this isn't working for you...
Attachments
hpsc4.pdf
Maestro Fuzztone FZ-1A user's manual
(2.72 MiB) Downloaded 337 times
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal

Post Reply