This is a flanger. No, it's THE flanger.
Analog, they are bagpipes which date back to the 70/80.
Editable? Yes with buttons.
It is a PDAL, not rack.

UTILIZATION

I aps manual, no need, turn the knobs.
The edition of her is easy.
It's a good old pedals for guitarists who have less neurons than fingers!

SOUND QUALITY

The sound of the flanger is really old school. This is not the coldness of flanger Cure (prfrez an ibanez or at worst a boss for this type of sound). This is a flanger fat. Mine are tun little "dirty" she drools a little when typing large bass or agreements flange deep, but it's really happy. It uses the flange Hendrix.
You have to love ... I love it.

OVERALL OPINION

I have since ... Long!
The best: simple, probably in strong. Adaptor with a catch, but that does not intgre.
The least: She drools a little dan the bass, but it is not done to be played with a bass.
Report quality price: difficult to say, this vintage is no longer sold. I'd say it's a matter of taste. L'argus me parat not too expensive, because it is a collector's item, trs endearing.
I would do this election ... if I n'tais not so broke.