117P7 Vacuum Tube – Rectifier-Pentode Combo for Transformerless AC/DC Radios

The 117P7 is electrically identical to the 117L7/117M7 — a combined half-wave rectifier and beam power pentode built to run directly off a 117V AC/DC line without a power transformer.

• Tube type: Rectifier-pentode combination
• Heater: 117V AC/DC, no transformer required
• Typical use: Combined rectifier and audio output stage in transformerless AC/DC portable radios and record players

Direct substitute for the 117L7/M7 in most chassis.