The Dynakit reproduction (SCA-CH) CHASSIS. Finally a chassis worthy of your next DIY project. We have re-engineered the SCA-35 chassis retaining the classic look and dimensional accuracy of the original Dynaco PAS preamplifier. The chassis kit includes a choice of three (3) faceplates, two (2) covers and optional accessories such as control knobs, switches, transformers and more… See SCA Chassis & Parts. The (SCA-CH) kit does not include the circuit boards….We will provide direct links to a number of recommended suppliers of these boards for your convenience.