1. Attenuators wire wound potentiometer.
2. Power rating: 2dB/ 15W, 6dB/10W, 12dB/6W.
3. Wire wound potentiometers (L-PAD).
1. Network: L type. 
2. Impedance: 4Ω / 8Ω. 
3. Impedance tolerance: ± 25%. 
4. Attenuation: 0-40dB. 
5. Rotary angle: 300°±5°.