The Type 80 is a classic, directly heated, full-wave vacuum tube rectifier, known for its use in early radios and vintage audio gear, featuring a UX4 (4-pin) base and providing mellow, musical sound, often used with adapters to substitute for tubes like the 5Y3GT in modern equipment.
- Tested on a TV-7A/U:
- Plate 1 GM: 42
- Plate 2 GM: 40
- Condition: Used / Tested