| Application | EL34 |
| Primary Impedance (Zaa) | 4000 ohm |
| Secondary Impedance (ZL) | 4 ohm |
| Turns Ratio Np/Ns | 31.6 |
| Ultra Linear Tap | 40% |
| -0.1 dB Frequency Range (flf) | 84 kHz |
| -1 dB Frequency Range (fl1) | 131 kHz |
| -3 dB Frequency Range (fl3) | 185 kHz |
| Nominal Power, RMS (pn) (note 1) | 70 W |
| Full Power Bandwidth, -3dB, starting at (fu) | 14 Hz |
| Total Primary Inductance (Lp) (note 2) | 1163 H |
| Primary Leakage Inductance to Secondary (lsp) | 3.2 mH |
| Effective Primary Capacitance (cip) | 345 pF |
| Total Primary Resistance (Rip) | 114 ohm |
| Total Secondary Resistance (Ris) | 0.10 ohm |
| Insertion Loss (Ilos) | 0.23 dB |
| Tube Plate Resistance (rp) | 4 kohm |
| Q-factor 2nd order HF roll-off (Q) (note 5) | 0.699 |
| HF roll-off Specific Frequency (Fo) (note 5) | 188 kHz |
| Quality Factor (Lp/Lsp) (QF) (note 5) | 363,000 |
| Quality Decade Factor (QDF) (note 5) | 5.56 |
| Tuning Factor (TF) (note 5) | 1.35 |
| Tuning Decade Factor (TDF) (note 5) | 0.134 |
| Frequency Decade Factor (FDF) (note 4, 5) | 5.70 |
