TUBE: 46
FICHIER SOURCE: sheets/127/4/46.pdf
FABRICANT: Tung-Sol
ANNÉE: 1939 (June 26, 1939)
LANGUE: en

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TUNG-SOL 46 — DUAL GRID POWER AMPLIFIER
Coated filament 2.5 VOLTS 1.75 AMPERES AC or DC. Glass bulb ST-16. Medium 5-pin base (culot 5C).
Brochage (bottom view): G(grille, haut), P(plaque), Gs(2e grille adjacente plaque), F, F. [DEUX grilles séparées: G contrôle + Gs]
Dimensions: 2-1/16" / 4-3/4" / 5-3/8" / 1-3/8".
"THE TUNG-SOL 46 IS A DUAL GRID POWER TUBE DESIGNED FOR USE IN A CLASS A OR CLASS B OUTPUT STAGE."

OPERATING CONDITIONS AND CHARACTERISTICS — CLASS A1 AMPLIFIER (GRID Gs CONNECTED TO PLATE AT SOCKET):
Plate Voltage = 250 V
Grid Voltage (A: from midpoint AC filament) = -33 V
Plate Current = 22 mA
Plate Resistance = 2380 Ω
Transconductance = 2350 µmhos
Amplification Factor = 5.6
Load Resistance = 6400 Ω
Power Output (B) = 1.25 W
(B: ~double recommandé comme charge si tube utilisé en driver d'un étage Class B)

CLASS B AMPLIFIER — TWO TUBES (GRIDS CONNECTED TOGETHER AT SOCKET):
Plate Voltage = 300 / 400 max V
Grid Voltage = 0 / 0 V
Zero-Signal Plate Current = 8 / 12 mA
Peak Plate Current (per tube) = 200 max / 200 max mA
Maximum Plate Dissipation = 10 / 10 W
Load Resistance (plate to plate) = 5200 / 5800 Ω
Average Power Input (grid to grid) = 0.95 / 0.65 W
Power Output = 16 / 20 W
(PLATE 474-1, JUNE 26 1939)

--- CHAMPS EXTRAITS ---
Type: DUAL-GRID power tube, chauffage DIRECT. 2 grilles séparées (G contrôle + Gs adjacente plaque). Fonctionne en triode dans les 2 modes (Gs->plaque = mu bas Class A1; grilles reliées = mu élevé Class B). PAS une tétrode/pentode.
heater_v=2.5 ; heater_a=1.75
va_max=400 (Class B) / 250 (Class A1) ; pa_max=10 (par tube)
ipk_max=200 mA ; vg1: -33V (Class A1), 0V (Class B)
socket="Medium 5-Pin (5C)" ; bulb ST-16
pinout: pin1=f; pin2=p; pin3=g(g1); pin4=gs(g2); pin5=f
operating_points: A1 (Va250,Vg-33,Ia22,gm2.35,rp2380,mu5.6,RL6400,Pout1.25W); B 2-tubes (Va300,Ia0=8,RLpp5200,Pin0.95W,Pout16W) et (Va400,Ia0=12,RLpp5800,Pin0.65W,Pout20W)