Date Region Description Price Seller
USAThe FX25B is the reincarnation of DOD's original envelope filter. You st...$90.00
USAEnvelope filter, auto wah, lots of nice variation. SN 666738 dates this...$100.00
USAI put some use on this, I really liked this filter when I was using them...$60.00
UKVery good condition with light signs of use as pictured.Highly regarded ...$130.52