I friend of mine gave me a Morley SLDW for repair.
I found that the original schematic do not corresponds with the circuit,
it was therefore necessary to trace the circuit.
One more LED-LDR combination in real circuit and a somewhat different wiring identified.
The owner cannot rember if the pedal had been modified sometime in the past.
In the original schematic 7812 voltage regulator is shown, in the real circuit it is jumpered.
Likewise the power supply is 18 Volts DC in the schematic...
man, i wish lucifer's trip was still around... dave! we miss ya! :icon_twisted:
anyways, for no particular reason this caught my eye the other day scrolling thru the diystompbox forum on farcebook:
olson-fuzz-master.png
so i figured, since i finally have a wee bit of downtime between jobs, i'd slap one together.
so i vero'd it up.... this IS verified, with a caveat or two we'll get to later...
Black-Knight-Fuzz-1.png
i changed the input and output caps from 3.3n to 39n for no...
Not an evil japanese .... no.... the Amplifier Cooperation of America produced the Fuzz King . When you look inside, you see one 1,5V battery, 3 x Ge-transtistors 2 x 10k resistors, 2 x 100k resistors, 2 electrolytics.... seems to be a Maestro FZ-1A clone/derivate.....
I traced the circuit of my Jen Double Sound Super many years ago, had some help from Paul Marossy from the old DIYGuitarist site. The wah section is identical to the original Cry Baby, and the fuzz section seems to be a no knob Vox Distortion Booster. It sounds great.
JDSSschem.png
jen_doublesound_super_v3b.gif
JenDSSfront.jpg
JenDSSbottom.jpg
component_side.jpg
The switches are made by Marquedt, the original wah pot is a Centralab. The inductor is a white...
I got this today off a dusty second hand shelf. I can't find any reference to it on the internet and am not sure who made it or what the intended usage was. It seems that if the input was low it could be some kind of germanium sniffer unit. It's got a good germanium fuzz thing going on when I plug into it.
20210330_192855.jpg
Each channel is the same. It came with 3 of these japan stamped microphones with magnets on the bottoms of the holders. It probably originally had 5....
Just trying to get my head around why the two LFOs in a Mu-Tron Bi-Phase are so different - they both put out square and sine waves.... it has been mentioned on the other forum that one is voltage controlled. I’m still wondering what the purpose of this is.
Thoughts / help please? Why? Because I'm planning on modding a Phase II to have square and sine wave as options, and I would like to understand more about what is going on in the Bi-Phase.
I'm not sure of the manufacturing date of my unit... I hope I post in the good section.
I've done a full recap on my old QSB as it was really too much noisy...
I've not found pictures anywhere, so I've taken some photos of its guts, just for the curious because it is not a real good reverb unit (the only one spring measures around 20 cm and is really boingy :mrgreen: ).
After recap' it's dead silent, and I even think I've more headroom, but it's still a bad reverb for guitar: it...
Way back in 1971, I bought a combination fuzz/wah pedal at a local music store. The manufacturer name on it was Jax, but I have since found out it was made by Shin-Ei of Japan. This is a picture of the side panel showing the fuzz:
The wah was okay for what it was, but the fuzz was quite something. It had two voice settings. One was a very buzzy Vic Mizzy sort of fuzz that I didn't like much at all. But the other voice was a cool sounding boost without the buzz, and I liked it so much that...
I have been rebuilding an old EP3 and have hit a snag, mostly from the where do I find this? corner.
Someone before me had wired in a new power cable and must have done it backwards and blown both bridge rectifiers so nothing worked at all. Replaced the rectifier for the solenoid/shut off switch and the motor and solenoid worked, but no power was getting to the board. Replaced the main input rectifier (and the big can caps) and the light came on and there was some playback of old recordings,...
Hello,
at least, after Hundreds of Years of research (aprox.) I found some Picture of the Backside from the Original Schaller GE Fuzz.
made some PCB tracing with Target3001 (E-Cad like Eagle) try to get it in here.
It`s just possible to make some pdf but no jpeg or something.
Maybe someone in here will help to finish the layout (just finished the tracing right now)
I just picked up one of these and it's been pretty glitchy. I tried cleaning the pots but they still seemed bad. The level pot was cutting right out below 8. I opened it up and the carbon is completely gone. Ditto for the sustain. Anyway all this to say does anyone know the value of these? I can't seem to find a schematic. Is there a way to tell by the markings? I know one set of numbers represents the manufacturer and the year/week of its build not sure what the other set means. Both pots have...
Hi guys,
my english is bad so I bounce presentation and my sentences will be short and some time these last could be strange.. I beg your pardon for this...
I have a echorec binson e4t (I attach the schematic). If I increase length (feedback) I have only max 4/5 repeat even if I put on max the internal trimmer.
how can I try to edit in the feedback circuit for add the number of repeat?
thank you and excuse me for errors and ignorance
Luca
as i grub into my saved Schematics.. i found an old Operating Manual of an old Uni-Vibe (first Version i think)
its a Scan of that Manual including a Schematic that i found some years ago somewhere on the WWW ...
Hi !
Since there seems to be no trace of this pedal on the internet (that I could find, at least), here's one !
It's exactly what it looks like : a Boss DC-2 Dimension-C chorus clone.
The only other pedals I could find from this brand on the used market are a Steven CH-6 Super Chorus ( Boss CH-1 clone) and a Steven FL-1 Flanger (Boss FL-2 clone probably), but there are a few more on effectsdatabase.
Hi
few days ago a guy give me a fender fuzz wah pcb. unfortunately he had throw away the pedal box many years ago and just keep the pcb. it s the same pcb you can see here
the pcb back is labeled 1967 c peterson + a serial number.
the fuzz is working. but i don t have the pots for volume and wah and can t find anywhere over the net a schematic for the early fender fuzzwah version.
So if someone have a schem or hi rez guts pics so i can find where and how are the potentiometers wired; i could...
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