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Post subject: Drri vibrato channel low volume
Posted: Mon Jul 25, 2016 2:52 pm
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Hey guys. Just received a 65 drri purchased in otherwise excellent condition on reverb.com. The normal channel volume works fine. Nice and clean and quiet. The vibrato side has very little volume even at 10. All the tubes are hot. Can someone please give me a starting point?


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Post subject: Re: Drri vibrato channel low volume
Posted: Mon Jul 25, 2016 4:00 pm
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Joined: Sat Jul 03, 2010 2:18 pm
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Swap V1 and V2. First two tubes on right side of chassis (looking at back). First two on right side of tube chart.

See if problem swaps channels. If so, you need a new 12AX7. If not, there are other issues to follow-up.


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Post subject: Re: Drri vibrato channel low volume
Posted: Mon Jul 25, 2016 5:51 pm
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Thanks BMW. Bad tube. Quick fix. Appreciate the help.


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Post subject: Re: Drri vibrato channel low volume
Posted: Tue Jul 26, 2016 1:49 am
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Location: Province de Québec, Canada
Tubes amp; for any problem, look at tubes fist


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