Description
Features
- "Over designed" for high fidelity, single ended, Class-A, tube output circuits (triode, tetrode or pentode tubes).
- Enclosed (shielded), four slot, chassis Type "X" mounting.
- Frequency response at least 20 Hz. to 20 Khz. at full rated power (+/- 1 db max., ref. 1 Khz.)
- Insulated flexible leads 8" min.
- For maximum versatility, all units (except the 1642SE & 1638SEA) include a 40% screen tap for Ultra-Linear, tetrode/pentode operation (if desired). The 1642SE & 1638SEA do NOT include this screen tap as they were designed principally for high impedance triode tubes.
- High quality laminations, (M6) grain oriented silicon steel.
- Core is gapped to reduce core saturation in Class-A tube amplifier circuits.
- For general purpose or replacement use in single ended tube output circuits see our 125SE Series.
Specifications
| Audio Watts | 25 |
|---|---|
| Impedance (Ohms) | 600 |
| Primary Max. DC Bias (mA) | 250 ma. |
| Inductance (H) | 2.9 Henrys |
| Ultra-Linear 40% Primary Tap | Yes |
| Secondary Impedance | 42468 |
| Hipot Test (VRMS) | 2000 |
| Suggested Tubes - Triodes | 6C33 |
| Suggested Tubes - Pentodes | - |
| Drawing Sheet | Download Drawing Sheet |
