Guitar pedals & effects 2

For more info on pedals that work with synths:

+ Guitar pedals and effects 1- that work well with synths

 This is Boss's 1st pedal

The CE-1 

Musonics Phaser

Mu-Tron Phasor II

Phase shifter

1977

Six phase-shift stages provide a maximum of 1080 degrees of phase-shift 

The feedback circuitry (first introduced on the Mu-tron Bi-Phase) produces a distinctive, pronounced sweeping effect

MXR Stereo Flanger

16 second digital delay

Electro-harmonix

This is a early digital sampler

Able to record parts on the fly, and then replay them at the touch of a button, 

Strymon

Echo

El Capistan

Ekdahl Moisturizer

Reverb & Variable state filter

Control (CV) over freq and res.

Also Cv control to pick which filter .. LP BP,HP

Strymon bluesky

reverb

zoom MS-70CDR

Multi effects

 

 

Boss OD - 3

overdrive

.

Boss TR-2

Tremolo

.
 

For more info on pedals that work with synths:

+ Guitar pedals and effects 1- that work well with synths

Guitar pedals & effects 1

What are the basic pedals you should have in a rig for synths?

1. Overdrive 

      (Ibanez Tube screamer)

      (boss SD-1 & SD1w)

      (Boss BD-2 & BD2W) ... Blues driver

2.  Distortion

      (ProCo Rat 2)

(Boss DS-1)

3. Fuzz

(Electro-Harmonix Nano or Op-amp Big Muff)

... really any big muff will be great.

(Z.Vex Fuzz Factory)

      (Jim Dunlop Fuzz Face)

      (Boss FZ-1W)

       (RML Electron Fuzz)

4. Reverb

(Holy Grail)

(Blue Sky)

(Fender Marine Layer)

5. Echo / Delay

(Boss DD-7) Digital Delay

(Electro-Harmonix Canyons)

(MXR Time Delay)

6. Tremelo - modulating the volume in a rhythmic way.

(Boss TR-2)

(JHS Pedals Tidewater))

7. Chorus

(Way Huge Blue Hippo)

(Boss CE)

(MXR Stereo Chorus)

8. Equalizer-- EQ.

(Boss GE-7)

(Boss GE-7 bass)

9. Phaser

(ElectroH Small Stone)

(MXR Phase 90)

10. Flanger

(Ibanez FL-303)

(MXR Flanger)

(Electric Mistress- EHM)

(Blue Hippo)

11. Uni-Vibe - Rotating speaker Leslie simulator

(Voodoo Labs microVibe)

(Shin-Ei Uni Vibe)

(EHX Good Vibes)

(MXR M68 Univibe)

(Dunlop JHM7 Univibe)

12. Octave Pedal

(EHX POG, POG2 and micro pog)- POG = Polyphonic Octave Generator

(Boss OC-5 & OC3, OC2)

(octavia - Dunlop ‘69 Psych Series)

(Mu-Tron Octave divider -1970's)

(Boss PS-2 "Pitch Shifter")

(EQD Organizer)

(TC Electronics Sub 'n' Up)

(EHX HOG2 (Harmonic Octave Generator)

13. Looper

(Ditto TC electronic)

(Ditto X2) -- stereo looper

(Boss RC-2 Looper)

14. Multi effects pedal

(Zoom MS70 CDR)

(Zoom MS50 G)

(Zoom MS60B - multistomp Bass)

(Hologram Microcosm)

(ZOIA - Empress effects)

These are some of my fav guitar pedals that work great with synths.

Little Big Muff

Big Muff - Russian 

MXR Time Delay

MXR stereo chorus

Ibanez Flanger. FL 303

Electro Harmonix Voice Box

MXR Flanger

Electro Harmonix LPB

Linear Power Booster

RML - Electron Fuzz

Retro Mechanical Labs

Small Stone - Electro-harmonix

Small stone - phaser - vintage EHX

Metal Zone MT-2

Boss

Acoustic Modeler - Behringer

AM-100

Korg Kaoss Pad.

Ok ... not a pedal, but works great. !!!

Electro Harmonix Mole

Bass booster

Electric Mistress - Flanger/filter matrix. EHX

EHX Q-Tron

Envelope filter & FX loop

EHX clockworks

Rhythm generator & clock

Boss PS-2

Pitch Shifter/delay

Slap back echo

Boss - DS 1

GE 7

Boss EQ

Boss RC-2

Loop Station

Synthesizer Timelines, Lists & Histories

This is the index lists, time lines & history entries and pages for this blog

+ Buchla Timeline

+ Electro-harmonix Timeline

+ FM synthesis Timeline

+ Formats - History of Synthesizer Formats (Buchla, Eurorack)

+ Guitar pedals and effects 1- that work well with synths

+ Guitar pedals & effects 2

+ ICs - The Most Influential ICs of all time

+ Korg Drum Machine Timeline

+ Roland Drum Machine Timeline

+ Synthesizer Conventions

 ----------------------------------------------------------------

"The man that hath no music in himself,
Nor is not mov'd with concord of sweet sounds,
Is fit for treasons, stratagems, and spoils."
- The Merchant of Venice (V, i, 83-85)

EHX "Booster" pedal family

I've recently been exploring some of Electro-harmonix early pedals... The LPB-1, the Screaming Bird & the Mole. They are really simple circuits & fall into the family of Boosters - all using a transistor for amplification.

The component values determine if the circuit boost all frequencies, bass or treble.

The LPB-1 boosts all frequencies, cutting nothing out.
R1 & R2 can be 430K & 43K respectively.
The transistor is a 2N5088 on my vintage example but you could also use a 2N5133 or BC239
if building your own.

 The Screaming Bird boosts treble.

The LPB-1 and the Screaming bird pretty much are the same circuit apart from
two capacitors (C1 & C2). The first part of the circuit (C1 & R2) work like a high pass filter.
Increasing the value of C1 should let in more bass. If you decrease it, more treble should appear.
With 0.1uF, most of the input signal goes through. In the case of the screaming bird, EHX have indeed reduced C1 to introduce more treble.

The Mole has a slightly different design even though one can see a family resemblance to the LPB-1.

EHX added two caps (C3 & C4) and again changed the value of C1 & C2 (the coupling caps).
R2 & C3 form a passive Low Pass RC (Resistor-Cap) filter .

R3 & C4 do the same. We have two LP filters ... before & after amplification.

Links:
+ Electro harmonix time line
+ My LPB-1

Linear Power Booster 1 - Electro-Harmonix

This is the "pedal" that started it all for Electro-harmonix.
Note the chicken head knob.

This pedal boosts input signals making the output stand out more. Most of the examples I've seen have a jack at the amp output allowing you to plug this directly into your guitar amp.  You could just sit this one on the floor or use it earlier in your signal chain, between effect pedals rather than at the end. I'm guessing this is from around 1969 to 1971 ??? The pot markings are obscured with solder making this difficult to date.

..

I've read this sold for about $20USD in 1970 which in today's money (2017) equals $128USD

What a shock. No PCB.

Good Old Eddie

The schematic is uber basic.
Just 4 resistors, 2 caps , a transistor and a pot.

 

R2 = 1M
R3 = 100K
R4 = 10K
R5 = 390R
R6 = A100K (volume pot)

C1 = 100nF/0.1uF
C2 = 100nF/0.1uF

Transistor 2N5088

It's interesting that C2 is ceramic & C1 a polyester.
I think they are just coupling caps to pass the wanted audio (AC) signals, while blocking any DC.

The first part of the circuit (C1 & R3) works a bit like a high pass filter.
Increasing the value of C1 should let in more bass. If you decrease it, more treble should appear.
With 0.1uF, most of the input signal goes through.

R2 & R2 forms a voltage divider. It determines the bias at the base of the transistor
The ratio between R4 (collector resistor) and R3 (emitter resistor) controls the gain of the transistor.

The trannie is a 2N5088. Its a NPN. They are cheap as chips on Ebay.

It's a nice little amplifier circuit. Could easily be used in a modular synth

 

+ Electro-harmonix Timeline