Basing (pinout)
Bottom view — the socket as you see it from the wiring side. Hover, tap, or focus a pin to name it. Read from the datasheet basing diagram (how to read these →).
Hover, tap, or focus a pin to name it.
- High voltage (B+)
- Control grid
- Cathode
- Heater / filament
- No connection
Viewed from below (socket / wiring side) · octal · basing 7AC
⚡ Oxblood pins sit at B+ — hundreds of volts in service, lethal, and still charged after power-off.
Datasheets
Primary manufacturer data, via public tube-data archives. The model below is fitted to the tabulated "average characteristics" in these sheets; the datasheet files themselves are linked, never rehosted.
| Publisher | Type | Source |
|---|---|---|
| RCA | 6V6 / 6V6GT | frank.pocnet.net ↗ |
| General Electric | 6V6GT | frank.pocnet.net ↗ |
| Tung-Sol | 6V6 / 6V6GT | frank.pocnet.net ↗ |
Circuit Codex model
A CC0 ngspice model in the Koren form, fitted here to the published anchor — no parameters copied from other model collections. Methodology →
- Anchor
- Va=250 V, Vg2=250 V, Vg1=-12.5 V → Ia=45 mA, Ig2=4.5 mA, gm=4100 µmho
- Source
- RCA Receiving Tube Manual RC-19, 1959, average characteristics
- Note
- µ is the grid-No.1-to-grid-No.2 amplification factor (9.6, RC-19).
- File
- models/6v6gt.inc ↗
See these parameters drawn: the load line explorer plots the 6V6GT's plate-curve family from this model and solves an operating point on it.
Maximum ratings
Design-centre maximums for Class A1 amplifier service. The 12 W plate rating is what makes the single-ended tweed circuits sit so close to the edge: a Champ idles its 6V6 at roughly half that figure, and the ratio of idle dissipation to this number is the first thing a load line is drawn to check.
- Plate voltage
- 315 V
- Screen-supply voltage
- 315 V
- Screen (grid No.2) voltage
- 285 V
- Peak negative grid-No.1 voltage
- 250 V
- Plate dissipation
- 12 W
- Screen dissipation
- 2 W
- Grid-No.1 circuit resistance
- 0.1 MΩ fixed bias · 0.5 MΩ cathode bias
- Rating system
- Design centre — carries an allowance for manufacturing spread
- Source
- GE 6V6-GT data sheet ET-T914 (March 1955), design-centre values ↗