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Tubes?

 
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wesman11483
RM20


Joined: 31 Jan 2016
Posts: 18
Location: Dallas TX

PostPosted: Sun Dec 17, 2017 2:10 am    Post subject: Tubes? Reply with quote

I was getting very low output/crackling/generally shitty tone from my RM4. I changed out all cables, eliminated entire signal chain, and replaced the three tubes on the unit. Am i missing something?
Could my "new" tubes be bad? Something else?
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Randall RM22: Jaded Faith Voxless, Salvation Dreadplate
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trimix
RM100


Joined: 03 Dec 2009
Posts: 161
Location: Tucson AZ

PostPosted: Sun Dec 17, 2017 9:59 am    Post subject: Reply with quote

There are a bunch of unused loops on the back of an RM4, try inserting jumper cables in them an see if it eliminates the crackles. The normalled connections will oxidize over time from not being used and creat all kinds of flaky intermittent issues.
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Randall- RM4, Clean, 1086, Mr Scary, Grail
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Jaded Faith- Twox, XTC, Custom RVerb
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Mesa/Boogie- Stereo Simul-Class 395
(2) Randall 4x12- X-pattern Vintage 30/G12T-75
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