gig Mon, Friday and Saturday last week. Used Shiva on Monday, Devil Cat Friday and was playing the Shiva to go over shit for Saturday when out of no where the volume and gain started dropping. Check pedals and cables . If I powered off board and powered it back on it seems to come back to life for 30 seconds.
so troubleshooting I go, one pedal and cable at a time until I realized it was teh map... *gasp*
tewbs????
there are Winged C's in it now... I had Ruby's that were new so I popped in 2 power tubes and she roared back to life. gig is in an hour and I have to shower so no time to bias.
prop her up plug her in for sound check and.... ziiiip pop!
now what
luckily the band (November Rain) had their, well our, van there, even for local gigs its easy. we have a TSL and a 5150 in it for spares. but no foot switches so I used the TSL for the gig.
the pop was a fuse
Sunday I spent the day dicking around with tubes, had a spare winged C and put it in with another winged c that I pulled originally and it was working fine. I checked the bias, one side 29 MA the other side .17 ... uhhhh tube did not get hot... put both original winged C's back in and she fired up perfectly. no loss of gain or volume. only thing I could think was dirty sockets? used contact cleaner and cleaned the sockets running old tubes in and out of the sockets with contact cleaner on them. Since, I have been playing it each day and checking the bias and 31 MA both side each day. so far so good.