Compare Tube amplifier PSU delay circuit w/ pwr transformer assembled one piece !! $17.47 Add to Cart Quick view
Compare Tube stereo tone control Baxandall type Treble/Bass using 12AX7 ! $40.64 Add to Cart Quick view
Compare Ultra Low noise( 0.8uVrms 10Hz - 100KHz) +5VDC power supply board assembled ! $105.83 Add to Cart Quick view
Compare Linkwitz-Riley 2-way electronic crossover at 2.2KHz stereo (changeable by user ) $59.81 Add to Cart Quick view
Compare JLH 1969 class A amplifier stereo high quality PCB components assembled ! $85.89 Add to Cart Quick view
Compare Low noise tone control preamplifier with loudness control stereo assembled ! $30.66 Add to Cart Quick view
Compare 75W 5A DC-DC converter adjustable voltage with 7-segment LED readout ! $15.94 Add to Cart Quick view
Compare Zero reverse recovery charge super low loss SiC diode module1 pc ! $30.66 Add to Cart Quick view
Compare Tube stereo preamplifier massive soundstage musical matisse fantasy assembled ! $64.41 Add to Cart Quick view
Quick view Tube amplifier PSU delay circuit w/ pwr transformer assembled one piece !! This is an assembled board of delay circuit that is... $17.47 Add to Cart Compare
Quick view Tube stereo tone control Baxandall type Treble/Bass using 12AX7 !  ... $40.64 Add to Cart Compare
Quick view Ultra Low noise( 0.8uVrms 10Hz - 100KHz) +5VDC power supply board assembled ! img{max-width:100%} This is an assembled board of ultra... $105.83 Add to Cart Compare
Quick view Linkwitz-Riley 2-way electronic crossover at 2.2KHz stereo (changeable by user ) This is an assembled 2-way electronic crossover board. Filtering function is Linkwitz-Riley type with -24dB/Oct.Linkwiz-Riley filtering is regarded as the best type of filtering for audio crossover due to the excellent phase response, zero phase... $59.81 Add to Cart Compare
Quick view Tube PSU soft start, regulation & filament regulation !  ... $64.41 Add to Cart Compare
Quick view JLH 1969 class A amplifier stereo high quality PCB components assembled !  ... $85.89 Add to Cart Compare
Quick view Low noise tone control preamplifier with loudness control stereo assembled ! img{max-width:100%} This is an assembled board of a low... $30.66 Add to Cart Compare
Quick view 75W 5A DC-DC converter adjustable voltage with 7-segment LED readout ! img{max-width:100%} This is an assembled board of DC-DC... $15.94 Add to Cart Compare
Quick view RS232 to UART module 1 pieces ! img{max-width:100%} This is an assembled board of RS232... $6.89 Add to Cart Compare
Quick view USB to UART module 1 pieces ! This is an assembled board of USB to UART module. The... $9.50 Add to Cart Compare
Quick view Zero reverse recovery charge super low loss SiC diode module1 pc !  ... $30.66 Add to Cart Compare
Quick view Tube stereo preamplifier massive soundstage musical matisse fantasy assembled ! This is an assembled kit of a very good sound tube... $64.41 Add to Cart Compare