Electro Harmonix Pulsar - Clon

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This is an Electro Harmonix Pulsar clon, it's the first model, very old and noisy. Honestly I don't know exactly the year when it was made.
It is a simple circuit, easy to make, specially if you are trying to do some stuff yourself and you don't have any experience yet.
Watch the pins of each transistor those are very tricky.