You ask, you receive! :icon_biggrin:
(http://farm2.static.flickr.com/1038/1370068135_628c29be79.jpg) (http://www.flickr.com/photos/germanium/1370068135/)
(http://farm2.static.flickr.com/1013/1370966194_74d80027d6.jpg) (http://www.flickr.com/photos/germanium/1370966194/)
(http://farm2.static.flickr.com/1277/1370965132_983d935bfd.jpg) (http://www.flickr.com/photos/germanium/1370965132/)
(http://farm2.static.flickr.com/1118/1370064807_d604c98dc1.jpg) (http://www.flickr.com/photos/germanium/1370064807/)
(http://farm2.static.flickr.com/1183/1370963232_172439ffbe.jpg) (http://www.flickr.com/photos/germanium/1370963232/)
Btw: I drew a diagram and I think that the basic circuit from the Maestro diagram is right, but the values obviously aren't.
Cool, from what I have seen, this is the rarer version of the pedal. How do you like the sound, mine is not really that good with single coil guitars, maybe it needs humbuckers to really kick.
Quote from: Sir H C on September 13, 2007, 10:45:11 AM
Cool, from what I have seen, this is the rarer version of the pedal. How do you like the sound, mine is not really that good with single coil guitars, maybe it needs humbuckers to really kick.
It's not as nasty as the FZ-1 or the FZ-1A. Chords still sound good (but different).
The more critical aspect is the identity of that little diode in the corner. Is it Si, Ge or "other"?
Quote from: Mark Hammer on September 14, 2007, 10:00:18 AM
The more critical aspect is the identity of that little diode in the corner. Is it Si, Ge or "other"?
I guess Si, but from what I recall it just says "1N."
If you have a diode-measurement feature on your meter, you can test whether the voltage drop is in the Si (500-600mv) range or the Ge (190-260mv) range.
Quote from: Mark Hammer on September 14, 2007, 10:59:53 AM
If you have a diode-measurement feature on your meter, you can test whether the voltage drop is in the Si (500-600mv) range or the Ge (190-260mv) range.
Ok, will do.
Quote from: g3rmanium on September 15, 2007, 06:59:49 AM
Ok, will do.
I know I'm a little late. ;D
I tried measuring the diode today but couldn't. The meter jumped around too much. Is there anyone in Germany that could do a better job at this?
thank you for the pictures, will definitely be putting them to 'good' use soon.
does anyone have picture of the back fuzz face boards? I have my own layout drawn based on pictures from the top and following the schem but it's not quite accurate.
Quote from: gutsofgold on May 07, 2008, 03:23:05 PM
does anyone have picture of the back fuzz face boards? I have my own layout drawn based on pictures from the top and following the schem but it's not quite accurate.
You would be better off keeping the top "looking like" a FF and doing your own "bottom art". Dunlop is pretty protective of the Fuzz Face copyrights with regards to the artwork.
My .$02
got cha ;) I just can't get my wires to the board all clumped together like theirs is.
Quote from: gutsofgold on May 07, 2008, 04:18:02 PM
got cha ;) I just can't get my wires to the board all clumped together like theirs is.
'Cause you're probably not screwing up the pinout of your transistors like they did. :icon_wink:
The diode looks like the diodes in a photo of a Brassmaster I have. I've seen a photo of another Brassmaster with diodes that defininiely at least looked like Ge diodes. What's my point? Nothing, just that it could very well be Ge, or not. :)
Given that the diode seems to be DC-blocked clipper at the output, it woudn't affect bias or anything. So maybe a Ge for a classic sound, or an Si for more rasp?
Values of the pots, caps, and the transistor #'s ?
Does the orange wire go to lug 3 of a gain pot ?
This is what it's looking like so far....still some "mystery part values" that need cleared up...
(http://img.villagephotos.com/p/2006-11/1226934/MAESTROFZ-1B.GIF)
UPDATED SCHEMATIC
I assume that the diode is germanium, but not 100% sure
(http://img.villagephotos.com/p/2006-11/1226934/MAESTROFZ-1B.GIF)
A DIFFERENT VERSION....
(http://img.villagephotos.com/p/2006-11/1226934/MaestroFZ-1Bdifferentversionfactoryschematic.JPG)
(http://www.guitarpedalseffects.com/Maestro_Fz_1s_Fuzz.jpg)
Quote from: frankclarke on May 09, 2008, 01:19:34 AM
(http://www.guitarpedalseffects.com/Maestro_Fz_1s_Fuzz.jpg)
Thats the one I got some of the missing values from for the unit pictured.
We have 3 different versions in this thread !
Even though it says FZ1B on the factory schematic, isn't the 4 transistor version with the Balance pot the FZ1S?
Looking at it, it kind of looks like FZ18 on the printed schem, which could be a transcription mistake - S to 8? just a thought.
Quote from: smnm on May 09, 2008, 04:23:52 AM
Even though it says FZ1B on the factory schematic, isn't the 4 transistor version with the Balance pot the FZ1S?
Looking at it, it kind of looks like FZ18 on the printed schem, which could be a transcription mistake - S to 8? just a thought.
It came from inside this fuzz... so it should be a FZ-1B. The FZ-1s uses an entirely different case. It may be a later, transition one however....
(http://i15.ebayimg.com/05/i/000/ec/36/3fe0_3.JPG)
Here's a glimpse at the FZ-1s schematic (inside the FZ-1s casing...). It's quite a bit different than the schematic shown for the FZ-1B
(http://files.muziq.be/pics/maestro_super-fuzz_002.jpg)
I have a populated FZ-1S board that I was given and have wired it up. What I can get it to do is decent, but I suspect there is something wrong with one half of the dual-ganged pot. Rotating in one of the two directions gets me no output at all.
I built myself an FZ-1B from the Maestro schematic using 2N3392 transistors. I have absolutely no idea how they would be different than the 2N3860. I found the sound ...okay, but not particularly inspiring. I forget whether I used a GE or SI diode.
And as a side-note, do not depend on the visual features of the diode to identify which type it is. I have some big clunky glass ones that are SI, and have some teeny orange-with-black-stripe ones that look for all the world like Si but are 1N60 GEs.
Quote from: Dragonfly on May 08, 2008, 11:04:44 AM
Values of the pots, caps, and the transistor #'s ?
Does the orange wire go to lug 3 of a gain pot ?
I'll check the pots. The capacitor values and the transistor number are visible, I thought?
I'll post some more photos.
Quote from: g3rmanium on May 09, 2008, 10:09:47 AM
Quote from: Dragonfly on May 08, 2008, 11:04:44 AM
Values of the pots, caps, and the transistor #'s ?
Does the orange wire go to lug 3 of a gain pot ?
I'll check the pots. The capacitor values and the transistor number are visible, I thought?
I'll post some more photos.
transistor # is only partially visible.
the caps are not visible except for one that "looks" like a .15uf
I just need confirmation that the schematic Ive drawn has the correct values for the electros, transistors, and ceramic caps...
the diode would be nice to know too...but i think you mentioned that you were having trouble getting an accurate forward voltage reading ?
some possible mods....
(http://img.villagephotos.com/p/2006-11/1226934/MAESTROFZ-1BMODDED.GIF)
Measured .634 volts across the diode.
Quote from: Sir H C on May 09, 2008, 10:14:39 PM
Measured .634 volts across the diode.
cool...silicon it is...thanks.
Quote from: Dragonfly on May 09, 2008, 11:19:05 AM
transistor # is only partially visible.
Transistors are 2N3860.
Quote from: Dragonfly on May 09, 2008, 11:19:05 AM
the caps are not visible except for one that "looks" like a .15uf
The caps are 5 µF 12 V -10 + 100. The ceramic is Y5U 50 V, the other one .15 +- 30 % 12 V.
Quote from: Dragonfly on May 09, 2008, 11:19:05 AM
I just need confirmation that the schematic Ive drawn has the correct values for the electros, transistors, and ceramic caps...
I'm not so sure what the switch is doing. I think it just switches the diode into the circuit. The white wire goes from before the diode to the top lug of the balance pot, middle lug of balance switch goes to top lug of volume. Low lug of balance goes to ground.
Here's one more photo.
(http://farm4.static.flickr.com/3047/2486959370_9ca0f68c5a.jpg) (http://www.flickr.com/photos/germanium/2486959370/)