svetlana SV6L6GC high performance audio beam power tetrode he svetlana SV6L6GC is a glass envelope beam-power tetrode intended for high- power audio amplifier service. close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance. the svetlana SV6L6GC is manufactured in the svetlana factory in st. petersburg, russia, and is designed to be a direct replacement for any 6l6 type. the svetlana SV6L6GC features: ? design and construction based on the sylvania 6l6gc/str387 ? extra-rugged construction for use in music amplifiers--thick mica spacers and extra bracing reduce microphonic effects and resist mechanical and thermal shocks ? increased peak cathode emission from new cathode materials ? gold-plated grid and extended processing and aging for stability and reliability ? tri-plate anode for superior dissipation ? precise grid/screen alignment ? comprehensive static and audio amplifier testing before and after aging ? may be operated in inverted position--base fits into socket clamps in fender guitar amplifiers t electron devices svetlana marketing & engineering: 3000 alpine road portola valley, ca 94028 usa phone: 415 233 0429 fax: 415 233 0439 headquarters: 8200 south memorial parkway huntsville, al 35802 usa phone: 205 882 1344 fax: 205 880 8077 sm www.svetlana.com general characteristics min typ max heater voltage (ac or dc) 5.7 6.3 6.9 v heater current @6.3v 0.9 a cathode: oxide-coated, unipotential cathode-to-heater potential 200 v direct interelectrode capacitances : grid no. 1 to plate 0.6 pf grid no. 1 to cathode, heater, grid no. 2, and beam forming plates 10 pf plate to cathode, heater, grid no. 2, and beam forming plates 6.5 pf mechanical operating position any base large wafer octal 8-pin basing diagram jedec 7ac cooling radiation and convection envelope temperature (max) 250 c nominal dimensions: diameter 38.8mm (1.528 in.) base to top 93mm (3.605 in.) overall height 108mm (4.252 in.) diameter of base 34mm (1.339 in.) net weight 65 grams maximum ratings dc plate voltage vp 500 v screen grid voltage vg2 500 v plate dissipation 30 w screen grid dissipation 5 w base pin connections bottom view svetlana SV6L6GC outline drawing 9/96 5 7 8 1 2 3 4 g1 g2 c,bp h h p 6 nc nc 38.8mm 108mm 93mm 34mm electron devices svetlana SV6L6GC made in russia http://
typical operation, class a, audio power amplifier, single tube connection tetrode triode dc plate voltage 350 250 v screen grid voltage 250 v control grid bias voltage -18 -20 v peak af grid voltage 18 20 v zero-signal plate current 54 40 ma maximum-signal plate current 66 44 ma zero-signal screen grid current 2.5 ma maximum-signal screen current 7 ma plate resistance (approx) 33000 1700 ohms transconductance (approx) 5200 4700 m s load resistance 4200 5000 ohms total harmonic distortion 15 5 % maximum signal power output 10.8 1.4 w typical operation, class ab 1 , audio power amplifier (values for two tubes) dc plate voltage 450 v screen grid voltage 400 v control grid bias voltage -37 v peak af grid-to-grid voltage 70 v zero-signal plate current 116 ma maximum-signal plate current 210 ma zero-signal screen grid current 5.6 ma maximum-signal screen current 22 ma load resistance, plate-to-plate 5600 ohms total harmonic distortion 1.8 % maximum signal power output 55 w svetlana SV6L6GC high per for mance audio beam power t etr ode electron devices svetlana plate volts (vp) svetlana SV6L6GC typical characteristics screen grid connected to plate 250 200 150 100 50 0 pla te current (ip) 100 vg1 = 0 volts 200 300 400 500 600 0 +10 +20 -10 -60 -50 -40 -30 -20 -70 -90 -80 plate volts (vp) 0 svetlana SV6L6GC typical characteristics vg2=250v 250 200 150 100 50 0 pla te current (ip) +5 100 200 300 400 500 vg1 = 0 volts -5 -10 -30 -25 -20 -15
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