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Power Vacuum Tube Pentode (6CA7)

Tung-Sol EL34 B is a high quality, high voltage pentode tube using excellent materials. Its design allows a very good reactivity and offers a rich and musical sound. It is equivalent to the 6CA7 tube.

| 1 | Grid 3 |
| 2, 7 | Heater |
| 3 | Plate |
| 4 | Grid 2 |
| 5 | Grid1 |
| 6 | - |
| 8 | Cathode |
| Specifications | |
|---|---|
| Product type | Power tube |
| Number of pins | 8 |
| Dimensions | 110 x 31mm |
| Weight | 60g |
| ELECTRICAL DATA | |
|---|---|
| Cathode | Oxide, indirect heating |
| Heater voltage (AC/DC) | 6.3V |
| Heater current | 1.5A |
| Cathode to heater voltage | ±100V |
| Inter-electrode capacitance | Input : 15.4µF Output : 8.4µF Transfer : 1.1µF |
| Typical values | |
|---|---|
| Plate voltage | 250V |
| Grid 2 voltage | 265V |
| Grid 1 voltage | -13.5V |
| Plate current | 100mA |
| Grid 2 current | 12mA |
| Transconductance | 12mA/V |
| Load resistance | 2000Ω |
| Output power | 11W |
| Non linear distorsion factor | 9% |
| Limit values | |
|---|---|
| Heater voltage | Min : 5.5V Max : 7V |
| Plate voltage | Max : 800V |
| Grid 2 voltage | Max : 425V |
| Grid 1 inverted voltage | Max : -100V |
| Cathode current | Max : 150mA |
| Plate dissipation power | Max : 25W |
| Grid 2 dissipation power | Max : 8W |
| Hottest point temperature | Max : 250°C |
| Grid circuit resistance | Fixeed bias : max 0.5 mΩ Automatic Bias : max 0.7 mΩ |