1x Vintage NOS NEC Nippon (WE Japan) 5AR4 GZ34 Rectifier Tube /Digital Test /Classic Tone High Resolution Smooth Neutral Playback /CV1377 5GK20

update: our entire catalog is now available w/ digital test results, including gain, noise, waveform checks and more

a tenured history accompanies nec nippon (western electrics intl division) known for smooth holographic sound reproduction

a classic big fidelity tube, w/ a revealing full-frequency audio spectrum, natural balance, great bass, and top resolution

the revered neutral response (w/ no weaknesses to put your finger on) compares w/ costly european british german sonics

est. back in 1899, nippons playback quality became even more prominent in the 1950s w/ sylvanias brief tech partnership

this set nec apart w/ unique sound curves! compared to brands that partnered w/ rca: hitachi, toshiba, ten kobe kogyo (fujitsu)

1x old stock vintage rectifier tube, 5ar4 gz34 by nec nippon, w/ rare old box and carton wrap included

full digital mutual gm test + leak/short/gas/life/sound/waveform checks: pristine singles in stock: >100 % gm (65)

our high power output test applies 250v, measures the entire linear curve (eg-ip) simulating real circuits, all w/ filtered dc

give several sessions (up to 150+ hours) w/ your specific amps voltage to fully cure, break-in, and open up sonically

ships well packed worldwide! economy/priority/express postage available