TZF Flanger Idea

[puretube]

What`s nice with TZF, is the fact that the sweep ratio vastly increases:
while BL3207 datasheet speaks of 2.5ms to 50ms (1:20 sweep-ratio),
if you use 2 swept BBDs let them sweep only from 5ms to 10ms and back(1:2 ratio),
the time-difference between them goes from 5ms through 0ms to -5ms(representing an 1:infinity:-1 ratio).

[actually, the limited resolution due to the clocking e.g. @ 200kHz is somewhere near 5µs,
so it`s rather a ratio of only 1000:1:-1000 for 5ms to 5µs/0µs/-5µs to -5ms...
but you get this from sweeping the individual clocks only by a 1:2 ratio...].

{another thing is however, the fact that one needs a certain "minimal" maximum delaytime to cancel/phase out low frequencies as well...}