Yesterday morning, I received and settled two new tubes NOS JAN 6188 Super Audio Tube Philipps ( Invalid Link Removed ). I like very much the very sweet, rich and detailed tone of these tubes. Besides, their price is very reasonable in comparison with other NOS tubes 
On the other hand, I would not want to redo the same error as when I had settled two NOS JAN 5691 Philipps tube, and I would want to know if these 6188 are compatible with the electric power ( voltage plate ) of Monique ?
Jules, help me please!
On the other hand, I would not want to redo the same error as when I had settled two NOS JAN 5691 Philipps tube, and I would want to know if these 6188 are compatible with the electric power ( voltage plate ) of Monique ?
Jules, help me please!

