View Full Version : Vox AD120VT
Blueswaite
July 28th, 2007, 05:58 PM
I have this amp but when I play my Ibanez Artist with Seymour Duncan Lil 59 or my strat on the g and b string I get a fairley loud ringing tone after I hit the string.. I have lowered the pickup and in the amp went straight into the effects return to just use the power amp and still get the ring. Tried a 31 band eq in front and in the loop to try and take it out to know avail. Any ideas. At first I thought the preamp tubes might be going, but I believe when you go strait into the effects loop it by passes them Any ideas are welcome.
Thanks
TS808
July 28th, 2007, 06:52 PM
I have the AD60VTH (the head version of the 60-watt) as well as an AD50VT 212 and have never had this problem. What you're describing I had never heard of before.
I would post the question on the discussion forum at www.valvetronix.net
That site is THE best resource for these amps and Voxman can be very helpful.
Give it a shot.
Blueswaite
July 30th, 2007, 06:41 PM
Being doing some checking and the problem seems to be a microphonic tube. Going to change the tubes to Groove Tubes 12AX7-C.
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