Hi everyone
In the last days i heared strange noise from the JMD 100. Most of the time it was a sweeping and sometimes a squealing.
For testing i changed the power tubes for two new JJ and two new Electro Harmonix. The EH in the external position and the JJ in the internal.
The noise is away.
On saturday i have a gig with my band and the damage of the tubes are warranty. it will take some time. Can i use the different tubes together in the 100 watt JMD?
The technical data from the different tubes are alike. Only for one gig.
Best regards
Michael from Germany