Tascam Porta one R/P AMPL PCB 52101528-04 52101528-03 -02 AN6291 Dbx option:003 It also fits the TSR8

It also fits the TSR8 and maybe others

These are very rare items now and I get asked for them all of the time

I have taken a photo of one type so you can match it up

Pcb From a Tascam Porta one but many of these component are used on other machines

Tascam Porta one R/P AMPL PCB 52101528-04 52101528-03 -02 AN6291 Dbx option:003 It also fits the TSR8Tascam started to shrink their units down from the old Portastudio 144 machines and as a result cut the board down about 50% this is from a working unit, but contains a wealth of parts noted is 3 of the Panasonic AN6291 dbx chips these are about 6 8 pounds each if you can find them and are used in many machines not just Tascams. Nice 60khz oscillator block , compression trimmers and quite a few op amps etc, it seems most of the connections are via