Pedals using large inductor coils/transformers?

[rustywire]

In revisiting my Telenordia TF-1, which I nearly sold like a dumbass... (but luckily a deal never materialized when it was listed in B/S/T) I remembered how finicky it can be.
Here's what it looks like on the inside:



It's very sensitive to EMI and picks up hum from other transformers within close proximity.
But when it finds a spot it likes...whew, everything sounds so..........musical with the response of plugging direct into an amp.

I'm making this thread to list/discuss any pedal (particularly non-tube) varieties that employ such a design.
What have you fellow fuzzheads found in your travels?

[TweedBassman]

A lot of ring mods have transformers.

Anything that plugs directly into the wall, obviously.

The zvex Lofi loop junky has one too.

[Gone Fission]

Ring mods and octave fuzzes of the Octavia sort.

Wahs, vari-tones, and other eq-ish things. Inductors are useful for low-pass, high-pass, and band-pass filtering. The normal eq applications a little search engine will find you. The best explanation of how wahs work is the geofex.com "The Technology of Wah Pedals" article: http://www.geofex.com/article_folders/w ... wahped.htm

[morange]

Man that layout is nice.

[new05002]

It depends on if the transformer is being used for impedance conversion or electrical isolation or power conversion ect ect as to what kind of noise it will exhibit.

[hbombgraphics]

that is pretty cool,
I don't know if any of my pedals have transformers like this but I will check

whoever lined up the core on that thing did a pretty sad job of it,
nobody else may care about this but can you see what the brand is on the transformer?