hello guys,
i'm repairing one of these units and i can't find any schematic on the net.
maybe someone has got it?

Hello
I've got one for repair (reverse polarity incident) so it's not functional, but I thought some gut shot may be interesting :wink:
The owner uses this outdoor with a small motorbike battery which is about 6A so the hit was tough, and the pcb has completely fried under a diode (M7 rated to 1A)...
I hope I can fix it :hmmm:

The regulator is a 7805 and the xformer is labeled DT 16280-9 TRex 08/43 , the tube is of course a chinese rebranded to TRex (pay attention to the glue on the socket)...

Hi, here's a few pics of the aforementioned flanger. Please excuse the pic quality, but I didn't have the camera handy and had to use my mobile phone.

Like the Phase 2, it's a big beast!

Uppersurface of PCB:

note the 'roll your own' opto coupler.

PCB underside:

Component values not apparent from the photos:
Capacitors:
C1 220nF
C2 1nF
C3 220nF
C4 10uF/10v
C5 220nF
C6 220pF (?)
C7 220nF
C8 220nF
C9 100nF
C10 220nF
C11 3.3nF
C12 470pF (?)
C13 220nF
C14 100uF/6.3v
C15 68uF/10v...

Picked this up used yesterday. Pretty dang nice sounding, overall.

Some notes:
-- IC is a TL062C
-- The 3 center pots (tone controls) all measure ~29K
-- The 2 outside pots (volume and gain) measure ~94K
-- The small electrolytic caps are both 10uF, and the large one is 100uF
-- The lone through-hole film cap is labeled as 3.9nF (392J)

Here's a ZIP of the full-resolution images for those who are interested:

Have a DD5 on the bench with the request to add a dry kill. Did that one before a few years ago before I found a schem online. How? No clue. Developed that mod on the fly.

So, again. But now with a schematic. That's easy!
dd-5.gif

So, When one removes R34 the dry signal is gone. Problem is that there is no signal in bypass mode either because that's switched by Q4. Check, verified indeed, dry gone, no bypass signal. But... when the dry signal is switched by Q4 one would expect that it does...

The previous topic on this unit has practically zero informational value, so i though i'd start a new one.
(previous one, in vintage section, is here: in case admins want to remove it - along with this line...)

Got mine a few days back and i really enjoy the sound. Sort of like Devi meets Boss. While the design seems to be nothing more than a buffer/splitter -> fuzz section (weirdish, original design) + distortion section (OD250 on steroids) -> sections blended together -> buffer -> active...

Hello.

I read some schematics of TS-808 and TS-9.
For CR1 and CR2, I found out several patterns.
51pf cap with 51k reg, 100pf cap with 47k reg and 1nf with 100k reg.

Which is correct one? I mean which one is the same value as vintage ts-808 and ts-9?

If you know, Please let me know.

Thanks.

Hi
My first version KOODA KD-32 :D
This is very good distortion

Looks like Ibanez wants a piece of the boutique market too. Swirly paint and everything. Hmmm... :hmmm:

the Ibanez Steve Vai Jemini Distortion Pedal is like 2 stompboxes in 1 case and all points to a mix between the Ibanez TubeScreamer and the Boss DS1 pedals, a great combination of distortion and overdrive tones for the high-gained sound lovers.

For all guitar players out there and for all guitar-pedals techs, 3-4 days ago i was asked to do a mod on a Digitech DL-8 delay so it can be used in a parallel effect loop/parallel mixing.
So before you can use it in such way, you have to kill the dry signal. Regarding the fact that, this unit is a stereo one, the mod can be made only on one channel and can be activated / deactivated with a switch.
It involves cutting a track and adding a SPST mini switch (it's not necessary if you will use...

Picked this up at a yard sale. Could not find a schematic.
Inside the transistor has two legs broken from the pcb. It is labeled:
F78L (Maybe F7BL)
09AWC
8215

Any ideas what transistor it is?

The pedal uses an LED and LDR with a little light shield controlled by the pedal (like other Morleys)
It seems they had a platform that allowed them to build several pedals on the same pcbs. Thus the second board (labeled WAHB ) with what looks like an inductor on it. Strange the inductor has a bit of...

Hello,

the pedal has a big audio impulsive noise (very similar to capacitor discharge) every period of oscillation, and also every time I switch the vintage button (I think this simply add the feedback resistor to the circuit).
I tried to rotate the internal trimpot: the noise is present only when the trim is well centered for the best phasing, while rotatting the trim in extreme opposite directions, the noise goes away (with the phasing, also).

Any advice? Thanks all.
m.p.

I'm getting a lot of static in the background of the wet signal on an Arion SCH-Z.

What should I look for?

Not exactly sure if this is exactly the correct place for this post, but i thought i'd share it here anyway. (Admins/Mods are welcome to move this if there's a better suited subforum...)

Friend of mine had some grounding issues with his bass and i promised to take a look. The bass is Aria Pro II XRB Series JP/modern-styled bass with active on-board EQ. Late eighties or early nineties instrument. First i checked the basic stuff and everything seemed to be in order. Except for massive buzz...

Anyone know anything about these? (of course you do)

Any searching here just brought up the Klon Katana

Repaired one of these yesterday after I got the melted glue goop off.
According to the Effects Database it's supposed to be similar to a Zendrive?

Seems like a typical Tubescreamer type, 8 pin IC was sanded, but it looks pretty close to the schem/layout of the Zendrive I found here.

This was given to me as it does not function anymore. The IC is broken as there is a HUGE chunk taken out of it..... no idea why, I guess someone didn't take voltage ratings that close.

Schematic:
Visual Sound - Pure tone buffer.JPG

Anybody got any info on this?

Designed to mimic the definative rock sound of a 1960s british tube amp - October '08 Guitar and Bass Magazine Review
Heavy British to classic hard rock - Dano Website

With the newly uncovered info about two of the cool cat range being clones of boutique effects, has anybody any idea what this one is? 60's british amp..basically means Marshall. Now to narrow down the boutique marshall in a box pedals... possibly JTM voiced?

BoR Perhaps? I havn't heard one...

There's two trim pots in this thing. One I guess centers the frequency range for the LFO. What does the other one do? When I adjust it, I can't really tell any difference..

Is this one you guys have a good lockdown on? If not, I can post decent pics of it. This is one of my favorite 70's pedals.

Residual Noise Level: -100dBm (IHF-A Weighted, Typ.)
Equalizer Control: +/- 15dB
7 band EQ: 100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz, 3.2kHz, 6.4kHz
Level Control: +/- 15 dB
Connectors: INPUT Jack, OUTPUT Jack, AC Adaptor Jack (DC 9V)
Power Supply: DC 9V Dry Battery (6F22/9V), AC Adaptor
Current Draw: 7mA (DC 9V)
AC Adaptor: ACA-Series or PSA-Series (new models with silver label)
Width: 70 mm
Depth: 125 mm
Height: 55 mm
Weight: 450g

Boss-ge-7-Pcb-Vintage.jpg

ICs, transistors and...

Hi all, I'm a newbie to electronics and to the board. I have only built a Ruby amp and a Fuzz Factory so far using info on here and other websites but would like to give back to the community what I can so far.

The more experienced among you are probably wondering why I am bothering to post about the Boss SD-1 since it is essentially just a Tube Screamer which is a very well known and researched circuit. Well, I did this because I enjoyed it mainly. Another reason is I've seen a few requests...