Those are pre-1976 or even earlier (1973?). I’ve seen them in one of the earlier catalogs.
Value? See the link in my signature.
How does it sound?
I have one from the late 70s, and I think it does a great job of sustaining clean single note leads, melodic lines, or ambient work:, but it’s just too noisy for me to use with chords.
Not unique but pretty rare, probably quite valuable to a collector, but I have no idea how much someone would be prepared to pay for it as, like you say, you don’t see them often.
Sounds pretty good to me !
p.s. the audio on the youtube video is not a demo of the box (just me goofin around)
Is this effect box version 0 or 1 of the Black Finger ?
The common older one has a finger graphic on the box.
I have found one other photo of it – see link … http://www.effectsdatabase.com/model/eh/blackfinger
