![]() |
RCA 5691 (6SL7GT) Special Red Tube High-Mu Twin Triode (Industrial type) |
Plate Grid Bias Plate Current AC Plate Resistance Transconductance Amplification Factor |
250 V -2 V 2.3 mA 44000 ohms 1600 micromhos 70 *Class A Amp. |
![]() |
RCA 5692 (6SN7GT) Special Red Tube Medium-Mu Twin Triode (Industrial type) |
Plate Grid Bias Plate Current AC Plate Resistance Transconductance Amplification Factor |
250 V -9 V 6.5 mA 91000 ohms 2200 micromhos 20 *Class A Amp. |
![]() |
RCA 5693 (6SJ7) Special Red Tube Sharp-Cutoff Pentode (Industrial type/Metal Tube) |
Plate Grid Bias Screen Grid Screen Grid Current Plate Current Transconductance |
250 V -3 V 100 V 0.83 mA 3 mA 1650 micromhos *Class A Amp. |
![]() |
SYLVANIA 6V6GTY Beam Power Tube |
Plate Grid Bias Screen Grid Screen Grid Current Plate Current AC Plate Resistance Transconductance Load Output |
315 V -13 V 250 V 2.2 mA 34.0 mA 80000 ohms 3750 micromhos 8500 ohms 5.5 W *Class A Amp. |
![]() |
SYLVANIA 6SL7WGT High-Mu Twin Triode |
Plate Grid Bias Plate Current AC Plate Resistance Transconductance Amplification Factor |
250 V -2 V 2.3 mA 44000 ohms 1600 micromhos 70 *Class A Amp. |
![]() |
TELEFUNKEN GZ-34 Full-Wave Vacuum Rectifier made in Germany |
AC Plate-to-Plate
Supply (RMS) Effective Plate-Supply Impedance per Plate Average Output Current DC Output Voltage at Input to Filter |
450 550 V
160 200 ohms 225 160 mA 475 620 V *Capacitor Input |
Type | Name | Maker | Comment |
2A3 | Power Triode | RCA | |
2A3 | Power Triode | KEN-RAD | VT-95 |
10Y | Power Triode | SYLVANIA | VT-25 |
801 | Power Triode | HALTRON | VT-62 |
6AC5GT | High-Mu Power Triode | HYTRON | Dynamic-Coupled Tube |
6V6GTY | Beam Power Tube | SYLVANIA | |
5V6GT | Beam Power Tube | GE | |
5Z3 | Full-Wave Vacuum Rectifier | RCA | |
5Z3 | Full-Wave Vacuum Rectifier | HALTRON | |
5U4GB | Full-Wave Vacuum Rectifier | RCA | |
5Y3WGTB | Full-Wave Vacuum Rectifier | General Electric | |
5U4GB | Full-Wave Vacuum Rectifier | RCA | |
GZ-34 | Full-Wave Vacuum Rectifier | TELEFUNKEN | made in Germany |
GZ-34 | Full-Wave Vacuum Rectifier | Mullard | made in Great Britain |
GZ-34 | Full-Wave Vacuum Rectifier | SIEMENS | |
GZ-37 | Full-Wave Vacuum Rectifier | Unknown | |
6SC7 | High-Mu Twin Triode | RCA | Metal Tube |
6SQ7 | Twin-Diode High-Mu Triode | RCA | Metal Tube |
6N7 | Medium-Mu Twin Power Triode | RCA | Metal Tube |
6SL7WGT | High-Mu Twin Triode | SYLVANIA | |
6SN7GT | Medium-Mu Twin Triode | RCA | |
6SN7GT | Medium-Mu Twin Triode | HEINTZ and KAUFMAN | |
5691 | High-Mu Twin Triode | RCA | |
5692 | Medium-Mu Twin Triode | RCA | |
5693 | Sharp-Cutoff Pentode | RCA | |
12AX7A | High-Mu Twin Triode | RCA | Miniture Tube |
ECC83(12AX7A) | High-Mu Twin Triode | TELEFUNKEN | Miniture Tube |
ECC83(12AX7A) | High-Mu Twin Triode | SIEMENS | Miniture Tube |
12BH7A | Medium-Mu Twin Triode | RCA | Miniture Tube |