TAD 6L6WGC-STR REDBASE
The Classic Sound of the 1950s and 60s - Excellent Tone, Maximum Lifetime!
TAD 6L6WGC-STR REDBASE clear top - small bottle - absolute vintage style!
Juicy mids, tight bass and airy - easy to listen top end.
The perfect choice for vintage tweed and blackface amps such as the 1960s Bassman, Twin, Showman or Super Reverb. The complex midrange and sweet heigh are a class of their own. The TAD 6L6WGC-STR REDBASE is our recommendation for a classic tone with warm cleans and rich, sweet mids when pushed. Great for fat jazz or blues tones and our favourite option for all open back combos.
The TAD 6L6WGC-STR is a remake of the small bottle GE 6L6GC and has the same warm lower midrange and silky top end as the classic GE versions of the 1950s and 60s. Like the historic RCA 5881, this tube features a small bottle enclosure, clear top and side getter. The TAD 6L6GCM-STR and the TAD 6L6WGC-STR have our exclusive beefed up cathode coating, gold grid wire, double getter construction, no-noise filaments and 1.2mm thick heavy duty glass. This tube is only 84mm high (without pins) and can replace 5881 or 6L6WGB tubes in most applications.
TAD Premium Selection
Q: When does a power tube become a Premium Selected power tube?
A: All power tubes labelled Premium Selected have passed the following tests:
- Plate Current (PC) and Amplification (TC)
- Low Noise Test
- Microphonic Test
- Sonic Test
- Shock Test
- Listening Test
- Shorts & Leakage Test
Premium RT-Matching of Power Tubes
Our Premium Matching is an exact matching of power tubes with identical Plate Current (PC) and Transconductance (TC).
| Electrical Characteristics | |
| Heater Voltage (AC or DC) | Minimum: 5.7 V, Nominal: 6.3 V, Maxium: 6.8 V |
| Heater Current | 0.9 A |
| Cathode | Oxide-Coated, Unipotential |
| Cathode-to-Heater Potential, Max. | 200 V |
| Direct Interelectrode Capacitance, Max.* | Grid No. 1 to Cathode and Grid No. 3, Grid No. 2, Base Sleeve and Heater: <16.0 pF / Plate to Cathode and Grid No. 3, Grid No. 2, Base sleeve and Heater: <0.9 pF / Grid No. 1 to Plate: <2.5 pF |
* Without external shielding, nominal values.
| Mechanical | |
| Operating Position | Preferably Vertical |
| Base | JEDEC #8ET, Octal, 8-Pin |
| Dimensions - Height | 98 mm (3 7/8”) |
| Dimensions - Seated Height | 84 mm (3 5/16”) |
| Dimensions - Diameter | 9 mm (1 9/16”) |
| Cooling | Convection |
| Approximate Net Weight | 54 g (1.94 oz.) |
| AF Power Amplifier Maximum Ratings | |
| DC Plate Voltage | 550 V |
| Grid No. 2 DC (Screen) Voltage | 500 V |
| Grid No. 1 DC (Control) Voltage | -100 V |
| DC Cathode Current | 180 mA |
| Plate Dissipation | 30 W |
| Grid No. 2 DC (Screen) Dissipation | 5 W |
| Bulb Temperature (Surface Hottest Point) | 250° C |
| Typical Operatation - AF Power Amplifier, Class A1 (Single Tube) | |
| Plate Voltage | 350 V |
| Grid 2 Screen Voltage | 250 V |
| Grid 1 Control Voltage** | -18 V |
| Peak AF Grid 1 Control Voltage | 18 V |
| Zero Signal Plate Current | 55 mA |
| Maximum Signal Plate Current | 66 mA |
| Zero Signal Grid 2 Screen Current (Avg.) | 2.0 mA |
| Transconductance (Nominal) | 5,300 mS |
| Load Resistance | 4.2 kΩ |
| Output Power at 14% Distortion | 8.3 W |
** Approximate value (set to zero signal plate current).
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