6550, JJ Electronics, Beam Pentode, Vacuum Tube, Apex Burned-In Matched Sextet
USD 361.20 USD
Specifications
| Brand | JJ Electronics |
| Amplifier Type | Unknown |
| Item Diameter | 43 mm |
| Item Height | 125 mm |
| Body Height | 110 mm |
| Filament Voltage (U<sub>f</sub>) | 6.3 V |
| Filament Current (I<sub>f</sub>) | 1.6 A |
| Plate Voltage (U<sub>a</sub>) | ≤ 600 V, 250 V typical |
| Plate Current (I<sub>a</sub>) | 140 mA |
| Grid 1 Voltage (U<sub>g1</sub>) | ≥ -300 V, -14 V typical |
| Grid 2 Voltage (U<sub>g2</sub>) | ≤ 400 V, 250 V typical |
| Grid 2 Current (I<sub>g2</sub>) | ≤ 12 mA |
| Transconductance (S) | 11.8 mA/V |
| Internal Resistance (R<sub>i</sub>) | 16 kΩ |
| Plate Dissipation (W<sub>a</sub>) | ≤ 35 W |
| Grid 2 Dissipation (W<sub>g2</sub>) | 6 W |
| Cathode Current (I<sub>k</sub>) | ≤ 175 mA |
| Grid Capacitance (c<sub>g1</sub>) | 14 pF |
| Plate Capacitance (c<sub>a</sub>) | 12 pF |
| Grid To Plate Capacitance (c<sub>a/g</sub>) | 0.85 pF |
| MPN | T-6550-JJ-MSB |
| Compatible Brand | Any |
| Compatible Model | Any |
| UPC | 841358101977 |
The JJ Electronic 6550 is a robust tube built in the rugged fashion that JJ is famous for. At 35 Watts, these tubes have a warm round tone with a thick and defined low end. The JJ 6550 is an excellent choice for bass heads, tube organs, and Hi-Fi amplifiers.