Compare Tube crossover board circuit based on Marantz model 3 + daughter boards $34.49 Add to Cart Quick view
Compare clock board with on-board low noise regulator bare board one piece ! $4.59 Add to Cart Quick view
Quick view High current +24VDC regulator board Hi-Cap Naim PCB 2 pieces ! On list is two pieces of high current DC regulator boards, using LM317K ( TO-3 package of LM317), or LM338K. Naim used two pieces of such regulator in their famous linear power supply hicap 1C. The values printed on the board allows a steady +24V... $7.99 Add to Cart Compare
Quick view Tube crossover board circuit based on Marantz model 3 + daughter boards This is the bare PCB of a tube crossover board , circuit based on legendary Marantz model 3. The circuit is a 6dB/oct 2-way crossover design, using three 12AX7 ( or three 12AY7, or 1 12AU7 and 2 12AX7). 6dB/oct gives a most natural roll off and musical... $34.49 Add to Cart Compare
Quick view clock board with on-board low noise regulator bare board one piece ! This is a clock bare PCB. The board includes a low noise series regulator circuit for the TCXO ( or OCXO) and the wave shaping logic circuit. The board can output the original clock frequency , clock frequency/2 and clock frequency/4 simultaneously... $4.59 Add to Cart Compare