Genalex
Gold Lion KT77 Power Vacuum Tube
$142.12 USDFeatures
Recreated down to the finest detail for exceptional performance
Increased bass response compared to similar power tubes
Deeper and stronger mids for improved musical presence
Extended high-frequency response for enhanced detail
Outperforms Winged "C"/SED EL34 tubes according to many audiophiles
Manufactured to the highest quality standards
What's in the Box?
New Sensor Corp. has reissued the famed Genalex Gold Lion KT77 vacuum tube. This tube has been recreated down to the finest detail for exceptional performance and sound quality. For audiophiles, this means increased bass response, deeper and stronger mids, improvement to the mid-range as well, and extended highs. Many audiophiles who have previously enjoyed the Winged "C"/SED EL34 tubes have reported that these KT77 tubes are noticeably better. A faithful reproduction, this Genalex Gold Lion KT77 has heavy glass and ruggedized plates that will allow it to handle just about any abuse you give it and still have room to breathe. With gold plated grid wire and beautiful artwork, the KT77 has a lot of power with good headroom, too.
To be labeled Genalex Gold Lion, tubes must endure and pass the toughest testing the industry offers.
| Parameter | Specification |
|---|---|
| Physical Specifications | |
| Tube Type | Power vacuum tube, beam power tetrode |
| Base | Octal |
| Manufacturer | Reissued by New Sensor Corp. under Genalex Gold Lion brand |
| Manufacturing Location | Russia |
| Dimensions | Approximately 5 × 2 × 1.5 inches (12.7 × 5.1 × 3.8cm) |
| Weight | 3.5-5 ounces (100-142 grams) |
| Bulb Temperature | 250°C |
| Electrical Specifications | |
| Plate Dissipation | 25W |
| Maximum Anode Dissipation | 32W |
| Screen Dissipation | 6.0W |
| Amplification Factor | 11.5 |
| Transconductance | 10.5mA/V |
| Plate Voltage | ≤ 800V, 250V typical |
| Screen Voltage | ≤ 650V, 250V typical |
| Capacitance Specifications | |
| Capacitance Grid to Plate | 1.0pF |
| Capacitance Grid to Others | 16.5pF |
| Capacitance Plate to Others | 9.0pF |
| Application Specifications | |
| Primary Applications | Guitar amplifiers and Hi-Fi audio systems |
| Tube Replacement | Often used as substitute for EL34 tube |
