>Panasonic will discontinue all the MN300x series parts
Now this is my opinion but I think the BBD sucks. Horrible mushy nasty
distorted noisy, and just horrible to use. Sorry!
It is quite possible that the sound that is so loved by the owners of
this stuff, is due to the companders on either side of the delay unit.
The best way I think is to do what the early 80s designs did and build a
'BBD' delay unit but with DRAM. The DRAM acts just like a big wide shift
register. Everything else stays the same, the VC clock, the multiple
taps etc. Keep away from DSP, and you will have everything you need. A
soft clipping circuit with VCLPF could be easily implemented to get the
over fedback infinity echoes.
Of course, the DRAMs will probably be discontinued too...
Regards,
Tony Allgood Penrith, Cumbria, UK
http://www.techrepairs.freeserve.co.uk/projects.htm