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 Post subject: Dual rectifier problem
PostPosted: Tue Nov 29, 2016 12:00 pm 
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Bottle Rocket

Joined: Tue Nov 29, 2016 11:54 am
Posts: 5
Hi everyone! So I have a 1994, silver chassis, 2 channel dual rectifier, and its acting up. It's powering on, but it's not activating the channel like normal no matter which channel is selected. This of course means I get no sound. It did this yesterday, but after sitting for a bit in standby, it finally kicked the channel on by itself. Not so lucky today. It's almost like it's stuck in pre channel limbo. I swapped the fuse just in case, and looked at the tubes, but everything seems ok. anyone have an idea of what could be malfunctioning?

Edit: I actually am getting a sound, but it's just a buzz/hum that is not effected by the master volume level.


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PostPosted: Tue Nov 29, 2016 12:41 pm 
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Mark III

Joined: Tue Dec 22, 2015 12:15 pm
Posts: 283
opiateofthemasses wrote:

Edit: I actually am getting a sound, but it's just a buzz/hum that is not effected by the master volume level.


Had an 800 that did that. Turned out to be a bust speaker jack socket. The buzzy hummy sound that was very quiet was the OT blowing.

Dunno about the channel select stuff at all.

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some guitars and some amps


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PostPosted: Thu Dec 01, 2016 3:56 pm 
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Mark IV

Joined: Thu Aug 15, 2013 12:20 am
Posts: 643
Location: Tucson, AZ
If the channel lights don't come on and you only get him, the switching or power supply need a looksie. Call Mesa for a qualified tech.

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2007 3 Channel Dual Recto w/loop mod

My Humble Music Tech Blog:
Dual Rectifier Index


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