19BG6G

Beam Tetrode — Octal

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

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Known Equivalents & Substitutes

19BG6GA

Similar Tubes (Not Drop-In Compatible)

6BG6G

Electrically identical but 6.3V/0.9A heater — not a drop-in in 19V series heater circuits

6L6

Electrically similar (same gm=6000, same ra=25k) but 6L6 has internal plate on Octal base — 6BG6/19BG6 has top-cap plate

Electrical Specifications

Section 1 — Beam Tetrode

Absolute Maximum

Anode Voltage (max)Anode Voltage (max DC+boost)700V

Screen Voltage (max)Screen Voltage (max)350V

Anode Dissipation (max)Anode Dissipation (max)20W

Screen Dissipation (max)Screen Dissipation (max)3.2W

Notes

19V heater version of the 6BG6G. Heater current is approximately 0.3A at 18.9V (valve_equivalents) for series-string operation in AC/DC TV receivers.
SAMs substitution guide lists 19BG6GA as a direct substitute.
The plate (anode) connection is via a top cap — this provides high-voltage insulation needed for TV horizontal deflection service where peak plate voltages can reach 6600V.
Maximum peak positive plate voltage is 6600V and peak negative plate voltage is 1500V — these extreme ratings are for TV flyback pulse operation.
In stages operating with grid-leak bias, an adequate cathode bias resistor is required to protect the tube in the absence of excitation.

Pin Layout — Octal

1No Connection (shell)

2Heater

3Control Grid (g1)

Socket-Compatible Tubes ⚠ Not electrically compatible

6BG6

References

https://frank.pocnet.net/sheets/127/6/6BG6G.pdf