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HBE Squealing Feedback

 
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TubeMan5150
RM20


Joined: 10 Sep 2016
Posts: 23

PostPosted: Sat Jan 13, 2018 1:37 pm    Post subject: HBE Squealing Feedback Reply with quote

My new HBE module is unusable with the gain past noon. I get a ton of squealing feedback then. In comparison I also have the SLO and BE and both those modules are quiet even with gain at 3 o'clock.

I replaced the pre-amp tubes in the HBE...no change. Probably needs to be sent back to Synergy.

Anyone else experience this with a high gain module?
_________________
Randall Jaded Faith RM100, Egnater Tourmaster 4100, Egnater Armageddon
Jaded Faith Mods: D-Zilla, J-Plex, VX30
Salvation Mods: Mamba SE
Synergy: BE, HBE, SLO
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gtr31
Lynch Box


Joined: 22 May 2006
Posts: 551
Location: ottawa

PostPosted: Sun Jan 14, 2018 9:55 am    Post subject: Reply with quote

does it get worse turning any of the tone controls up

I know a few guys had an issue with DZL mod , and it was a ground on the mid pot
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ricky
Lynch Box


Joined: 20 Sep 2011
Posts: 836
Location: Bozeman, MT

PostPosted: Tue Jan 16, 2018 12:06 pm    Post subject: Reply with quote

I have a single mod form Salvation and like another mod from JF that doesn't just seat right and squeals when I turn up the gain or turn on the high gain switch. I press on the faceplate and it goes away. Try that and if that is the case I have a quick fix for you.
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TubeMan5150
RM20


Joined: 10 Sep 2016
Posts: 23

PostPosted: Wed Jan 17, 2018 4:38 pm    Post subject: Reply with quote

OK I take back blaming the HBE module. There is nothing wrong with it.

After more detailed troubleshooting and the problem getting more consistent (less intermittent), worse, and affecting all the modules in the amp now it's the FX loop. After unplugging the loop, problem gone. Probably the FX loop buffer tube. Swapping in a new tube is next on my list.

On another note I did get quick reply from Boutique Amps Distribution tech support. So that's a good thing.
_________________
Randall Jaded Faith RM100, Egnater Tourmaster 4100, Egnater Armageddon
Jaded Faith Mods: D-Zilla, J-Plex, VX30
Salvation Mods: Mamba SE
Synergy: BE, HBE, SLO
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