I just finished this one, a NostalgiTone CitrusAmp in a 1590B2. it's their take on an Orange amplifier in a pedal , and IMO it's pretty darn good, although I hoped it had a bit more output. Theys originally recommended red led's for the clipping and said that you could use 5817's for a bit more, so that what I used. I've built quite few orange amps in a pedal and this one is probably as good as the rest.
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pics: