“The Electro-Harmonix Hot Tubes “Amplifier Overdrive Simulator” distortion pedal. The Hot Tubes is one of the gnarleyist sounding distortions I have ever used and it is very versatile. This pedal goes from slightly overdriven tones to all out fuzz, with a wide range of very cool tones in between. It sags like an overdriven amplifier which is why they called it the “Hot Tubes.”
“Used by Ace on the recordings of the first Skunk Anansie LPs.”
Perhaps made from 1978-1984. Here’s an example w/original packaging. They may have been designated the U-77.
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