Key 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.)
• Units are designed to provide ample "headroom" at bass frequencies (note the weight of each transformer).
• All models have a secondary tapped for 4, 8 or 16 ohm outputs.
• 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 a 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 125 "SE" series.

Details: