1970 Alembic F-2B Stereo Pre Amp Early Production Black & Blue 2-Channel Tube Bass Guitar PreAmp Amplifier Vintage Original Rack Mount Effects Unit in Box | Reverb Italia
ALEMBIC F-2B STEREO TUBE PREAMP for Bass, Guitar w/ power cable Vintage | eBay
SOLD - 2x tube preamp:Alembic F2B & B.K. Butler Blue Tube II | TalkBass.com
Alembic F-1X Mono Tube Preamp | Reverb Norway
Dual Tube Preamp for Bass and Guitar Alembic F2b inspired Fender 60's tonestack | Reverb Italia