Mnuafacture of various types Solid State Realys, High-Power Switches, 50/60Hz notch filters, Solid Sate Breakers, PCB repair service and OEM turn-key manufacturing. Includes searchable inventory and catalog of electronic components.VSHolding - Electronic Design and Research SOLID STATE RELAY and 50/60 Hz Notch Filter We manufacture the best and unique modules some for controlling DC and AC power and some for signal processing to enhance SNR. Among large varieties of SPST, SPDT, DPST relays with MOSFET and IGBT on their output(s) you’ll find a relay to meet your specifications. From D1L-s