6DA7

Name: 6DA7
Brand: Tung-Sol

Compound (multi-section) — Noval — Tung-Sol

Data: HighHigh quality — base, heater, all universal parameters present, and ≥50% of desirable parameters filled in. Safe to use for design decisions.

↗ TDSL ↗ Radiomuseum

Known Equivalents & Substitutes

6DR7 6DE7 6EM76EA76FD76BN7

Similar Tubes (Not Drop-In Compatible)

10AD7

Datasheet states identical except for heater ratings and warm-up time

6EW7

Brans lists as related dissimilar dual triode for vertical deflection — check pinout before substituting

6GF7

Similar dissimilar dual triode for vertical circuits

8CY7

Similar dissimilar dual triode but 8.4V heater — not directly interchangeable

Electrical Specifications

Section 1 — Triode (Section 1 — oscillator)

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)300V

Anode Dissipation (max)Anode Dissipation (max)2W

Typical Operating

Anode Voltage (typical)Anode Voltage (typical)250V

Grid 1 Bias VoltageGrid Bias Voltage-8

Notes

Section 1 (oscillator): medium-mu triode (mu=20), Va max 300V, Pa max 2W. Section 2 (amplifier): low-mu triode (mu=6.3), Va max 500V, Pa max 6W, Ik max 40mA.
Controlled heater warm-up time of approximately 11 seconds. Maximum heater-cathode voltage 200V.
Maximum control-grid voltage: -400V (peak negative pulse) for both sections. Maximum DC control-grid voltage: -50V.

Pin Layout — Noval

1Grid (section 2)

2Anode (section 2)

3Cathode (section 2)

Socket-Compatible Tubes ⚠ Not electrically compatible

12B4A AL860

References