EHX Frequency Analyzer

[Bricksnbeatles]

Q: Are we not men?
A: We are effects pedal fanatics!

Anyway, the Frequency Analyzer is a really unique vintage ring mod which was favored by Devo’s Mark Mothersbaugh, and I’ve got an uncontrollable urge to build one.


Take a listen for yourself if you fancy (couldn’t find demo that shows off much of what the pedal can do, so here’s a concert that features it a good amount):

Anyway, I suggest you use your freedom of choice by voting for this down below!

 

[Feral Feline]

Post #14 includes a (to me) musical example of RM usage.

 

[Robert]

I really need to get back on this one... I have a nice stash of ICs just waiting to be used.

I got a bit hung up because I want it to fit a 125B and have standard 9VDC operation and was trying to avoid stacked PCBs.

This is the song that always comes to mind when I think of musical ring modulation. I haven't listened to this in probably 20 years, man, love that song. I remember the first time I heard it, what the hell is that noise?

 

[Bricksnbeatles]

View attachment 43211

Gonna call one of my ring mod experiments Robot Ears now

 

[Feral Feline]

... I have a nice stash of ICs just waiting to be used.

So... which ICs should I be scouring the underbelly of the Internet-Shops for?

AD633
M5218L
LF398N
MC1495L
MC1496
ICL8038
...

 

[Bricksnbeatles]

So... which ICs should I be scouring the underbelly of the Internet-Shops for?

AD633
M5218L
LF398N
MC1495L
MC1496
ICL8038
...

Ditto

 

[DGWVI]

So... which ICs should I be scouring the underbelly of the Internet-Shops for?

AD633
M5218L
LF398N
MC1495L
MC1496
ICL8038
...

The DIP version of the LM13700 is EoL, so wouldn't hurt to stock up on those while you can. I know at least a couple of ring mods rely on them

 

[Bricksnbeatles]

Thing going BUMP in the night

 

[Bricksnbeatles]

A bunch of names with no commercial potential:

“Q: Are we not pitch shifters?
A: We are ring mod!”

“Booji Box”

“red hat ringer”

“

Spoiler: Dear god Robert, do NOT name it this!

Anal. Freq.

”

“Uglatto”

“De-evolution device”

“Para-annoyer”

 

[drgonzo1969]

There is a vero layout on dirtboxlayouts.blogspot.com. but it is unverified. It doesnt look to difficult tho. not too much offboard wiring craziness. Anybody build this one on vero?

Electro Harmonix Frequency Analyzer - Modern version

The modern version of EHX Frequency Analyzer. The ICL8083 IC is obsolete but there is still some vendors that have it in stock. Came out ta...

dirtboxlayouts.blogspot.com

 

[Feral Feline]

"ENERGY DOOM"

Pic borrowed from JimmyM's TB avatar