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hasadari said:Does anyone know the following:
What tubes are used in the Mesa M-Pulse 360?
How do you change tubes on this model when the start to decline?
FireBug said:Two 12AX7 preamp tubes. The stock ones are 12AX7R2 (R means russian made). Choose whatever type of 12AX7 is appropriate for your sound, unscrew the top, pull out the old tubes, and without touching the new tubes (use a clean towel or something) plug them in.
The reason you do not want to touch the glass of the tube is that if any oil gets on the tube, it will cause uneven heat distribution.