TAM-4 tuner board, TAM-4 preamp board, PAB-8 amplifier board. Contact us for prices and other parts. All boards in excellent condition, . At this time now most boards will require to be re-capped, either by us or the buyer. Vince the owner who worked at KLH, offers some important service advice (consulting) that is required to get proper operation due to the age of these systems. Call for pricing and /or consulting info 617-926-8020