PDF: ELO_03_december_1977 Vervorming gewenst.pdf

ELO_03_december_1977 Vervorming gewenst 01.jpg ELO_03_december_1977 Vervorming gewenst 02.jpg

I remember a while ago there being a guy who posted an eagle layout for the all famous sansamp bass driver di however, the link he posted has since died as well as his account being long inactive. On the offchance that someone here has it, could you pm me? Thanks!

Hey, I hope this is the right section for this.

I recently got an Arion SFL-1, made in Sri-Lanka, and while I do very much enjoy the sounds from it, it unfortunately is very noisy. Any gain put before it and especially after it becomes unbelievably hissy. Even on it's own, I have to be careful when putting it through any gainy amp. Plus, when it is bypass, what sounds like clock noise bleeds through the signal and is very audible through distortion pedals.

I was wondering if anyone knows of...

PDF: Elementary-Electronics-1971-03-04 Fantastic Fuzzbox.pdf

Elementary-Electronics-1971-03-04 Fantastic Fuzzbox.jpg

Hofner Double Pedal catalog 1970.jpg

Today the Schaller Universal-Fußpedal is mostly referred to as Double Pedal . I have no idea how Schaller marketed this monster of a pedal internationally, but they surely had to find a more suitable name than Universal-Fußpedal - and a merely descriptive name would have been too long: a Fuzz/Treble-Bass-Booster/Tremolo/Swell-pedal with with dual treadle control. So as a consequence someone probably came up with Double Pedal .

What is it all about: The...

Hello,

I'm not skilled in electronics but there's maybe something wrong in this circuit or in my building...
When I use 6 stages phaser it's ok and I like the sound but when I switch to 5 stages phaser then there's evidently a lack of bass, as if there was an high pass filter somewhere... In the forum, someone else says the same thing about this circuit.

Does anyone have the pdf file of the tracks layout for this PCB?
I would like to cut the track that goes from R24 to R26 in order to switch...

PDF: Practical-Electronics-1984-05 Penfold Sustain Unit.pdf

Practical-Electronics-1984-05 Penfold Sustain Unit 01.jpg Practical-Electronics-1984-05 Penfold Sustain Unit 02.jpg Practical-Electronics-1984-05 Penfold Sustain Unit 03.jpg Practical-Electronics-1984-05 Penfold Sustain Unit 04.jpg

The Sabbadius Funky-Vibe sounds great (on the youtube vibeos I found, I recommend this one: ).

I have an pretty early Fulltone Deja Vibe, which is lacking this magic. As far as I know, it is, with regard to the circuit, an exact copy. But the components are different.

Could the magic of the Funky-Vibe be brought into the Deja Vibe with these other components, i.e. Matsushita 2sC828 and 2sC539 transistors? What about the photo cells? Sabbadius does sell the custom made photo cells.

EHX Grand Canyon Delay & Looper
Rotary encoder with switch was damaged and being replaced.
steps = 20
shaft height = 20mm

Hi everyone, I just found few pics of insides of TBM95 cry baby and I managed to read the most of values.
Since it is same pcb as mine ZW45 here are values of ZW45 and TBM95 presented throught pcb part names:

TM95 ZW45
R2 1k 1k
C4 220u 220u
C8 220n 220n
R7 470k 470k
R17 jumper jumper
R8 10k 10k
C5 10n 22n
R1 1k5 1k5
R6 470k 470k
R18 1k 1k
C6 220n 220n
C1 10n 10n
R3 82k 82k
R4 22k 12k
R13 1M8 1M8
R14 10k 10k
R15 68k 68k
R16 2M2 2M2
R9 390 ohm 390 ohm
C10 22pF 22pF
C11 100n 100n
R5 33k 33k...

Hi everyone!
Three effects for sale. Boards are designed and soldered by me. Bigger description inside the listings.

1. MXR Phase 100 clone - fits to 1590B enclosure - 25 Pounds

2. MXR CAE Line Driver/ Booster clone - fits to 1590A enclosure - 15 Pounds

3. Pharaoh Fuzz clone - fits to 1590B enclosure - 20 Pounds

Worldwide shipping :wink:

I have an RP360 xp. I had to store my gear for a few months. Upon setting up my rig again I discovered that all the presets and custom settings are gone. It will power up. Will this pedal reload all the presets on its own if allowed access to the internet or is it more involved than that? Also, is there a memory battery in this unit that may have drained? Thank you.

Hello all,

I have a Digitech RV-7 Reverb pedal that is amazing.

Sad these are no longer made and the Hardwire series is long gone.

I want to buy a replacement potentiometer for one that took a knock, It still works OK but is a bit tipped over.

Can't find one on Mouser, Digikey, or even Thonk UK who seem to have everything.

I need an Alpha 9C4 ( or any brand ) replacement rotary potentiometer which has a:

9mm body
right angle mount to PCB
d-shaft ( I could file a round shaft if needed )...

beetronics-whoctahell-2.jpg beetronics-whoctahell.jpg

Trace of the analogue board, might have an error or two as a few traces I couldn't follow under chips/sliders & a couple of values were obscured in my photos and I'd given the unit back to its owner after repair some time back but 99% correct.

Would actually be buildable with the digital section as there's no ROM involved, although probably prohibitively expensive to do so.

Hi everyone,
I tried to make a Sans amp Bass driver, with some mods.
I added a parametric eq with the shematic of a JHS Haunting mids, and i added a Max1088 to run it on 18v from a 9V power supply.

Everything is working perfectly BUT! i get a lot of distortion form the parametric EQ. (If i bypass it removing c19 and c36 and replacing it wirh a wire, the distortion goes away.)

(i have to say that a long time ago i tried to built a haunting mid and i had the same issue. I thought it was a...

Edit:
It still is identical to these units, check the corrected schematic by Lucifers Trip here
LRE Fuzz
Acetone FM-1 Fuzzmaster
Olson - X87 Fuzzmaster with factory schematic matching LT's corrections of the LRE

MIca Wailer 01.jpeg MIca Wailer 02.jpeg MIca Wailer 03.jpeg MIca Wailer 00.jpeg

PDF: Amaterske Radio 2004-10 Double Tremolo.pdf

Amaterske Radio 2004-10 Double Tremolo 01.jpg
Amaterske Radio 2004-10 Double Tremolo 02.jpg

In Czech, but here is a rough translation from Google:

A tremolo is a circuit that periodically changes the level of a passing signal.
In this case, it is supplemented by a two-position switch, which allows the signal to be corrected by frequency.

Description
The wiring diagram of the tremolo is shown in Fig. 1. The operational amplifier IC1A is...

Hi,
Assembled choral board
Choral.jpg

I'm getting ready to put it together as kit in the future.
There will be two versions in preparation: MN3007 and MN3207.
Rgds,
box

Dissertation by Helmut Haas describing the Haas Effect. It includes a detailed description and diagram of a very early magnetic tape echo generator (magnetophone, a precursor to the Echoplex) that he used in the his experiments. This is the English translation, pubished in the Journal of the Audio Engineering Society.

Hi all!

I got this Headrush E1 in due to some noise. There is a lot of 'clock noise' going on: a high pitch noise that is always in your signal and can't be dialed out. Quite loud, quite apparant, quite annoying. On the mix output the noise was loud; on the 'seperate head outputs' the noise was bearable.

I fixed part of it by replacing all filter caps with new versions. With this, the noise was bearable, but still in the signal. In the end I fixed the noise by adding 10n caps to ground on the...

Hi everyone.

Since I have the Bandit 112 I Wanted to do something about the attenuation.
The amp starts breaking up (transtube) at Vol 6-7 at 25% of power level but still, too loud for home use.
I have the 2-silver stripes version:

I found on a post from 2020 a guy saying he added a master volume after the T dynamics circuit and said: it is a 47k / 50k pot in series with the feedback tail. At 50k and T dynamics at 10% one now has 0.65 crancked Watts
He also added this Schematic (red...

Just the schematic -

PDF:
boss-bf2-flanger.pdf

JPG
boss-bf2-flanger.jpg

Complete 12 page service notes in PDF:
BOSS-BF-3-SERVICE-NOTES.pdf

Full Patent Text in PDF: US3223936.pdf

US3223936 Transistor limiter amplifier.jpg

The source for this information is here . I did not discover this, but trying to create some sub text...

The patent being applied for on 23rd of October 1962, and published on the 14th of December 1965, make it a very likely source for the EHX Big Muff circuit:

big-muff-pi-schematic.jpg