2PCS Shuguang FU-811 811A Vacuum Tubes for Medical Tube Amplifier Ultra-short Wave Therapy Apparatus

2PCS Shuguang FU-811 811A Vacuum Tubes for Medical Tube Amplifier Ultra-short Wave Therapy Apparatus

Features:
- Brand new Shuguang FU-811 (811A) tubes with one-year warranty
- In terms of performance, FU-811 tube has large transmission power, high vacuum degree and long life. Thus, it is good for ultra-short wave therapy devices. If it is applied to a tube amplifier, then the sound of the FU-811 tube is good, the sound permeability is good, and the power is large.
- Better process and more stable performance. The new model has a long service life and the mercury in the new tube is full and shiny.
- The base of the new FU-811 is red.

Package Included:
- 2 x Electronic Tubes