Oscar
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Posts posted by Oscar
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Myles,
I have a '98 HotRod DeLuxe. When playing on the clean channel, on certain chords and notes a glassy, rattling sound comes out of the amp that's very annoying. This does not occur on the overdrive channels. It really sounds as if a small part in a tube is rattling, so I replaced the preamp tubes one-at-a-time with a NOS '60's Telefunken 12AX7 but the problem remained. I turned up the amp with no guitar connected and softly tapped the 6L6's with the back of a pencil - no weird noises. This leads me to conclude that the tubes are OK. I also disconnected the reverb tank - the problem persisted. I can't think of anything else to do. Do you have any suggestions? Thanks!
Regards,
Oscar
Feel free to ask Myles
in Guitar Forum
Posted
Myles,
On the one hand, I have box of old tubes, including:
-4 Siemens ECC83's
-a Brimar ECC83
-a Philips Miniwatt ECC83
-a Philips 12AT7 and a 12AY7
-a GE 6L6 GC
-a couple of Sylvania 6L6GC USA
-a couple of Philips EL34's
The pre-amp tubes are all in good shape, the power amp tubes vary. Some are worn, others are good.
On the other hand, I have a Fender HotRod Deluxe combo with Fender/Groove Tubes 12AX7's and 6L6's.
Now, how to combine the two....? Are the Siemens ECC83's, for example, to be used in stead of the Fender/Groove Tubes 12AX7's? What sound differences can I expect? Or would the Brimar be a great choice for V1, or which would be a good choice for the phase inverter, or, or, or....
***Oscar<---------option anxiety***
Any suggestions would be appreciated!