designing a spring reverb
Posted: Sun Aug 02, 2009 3:30 pm
I want to add a spring reverb to small tube amp. The amp is very conventional with a couple 12AX7 based gain stages, tone stack, phase inverter then power tube. (Based very closely on the AX84 "High Octane")
Where is the best place to pick up the signal? Early after the first triode stage or later after the tone stack? Either way I think I need to mix it back with the "dry" signal at the same place.
Also, Is there any difference in the sound of a high vs. low impedance reverb tank? Some are a couple K ohms others are 8. If there is no difference I'll just get the one that matches one of the transformers I happen to have.
Where is the best place to pick up the signal? Early after the first triode stage or later after the tone stack? Either way I think I need to mix it back with the "dry" signal at the same place.
Also, Is there any difference in the sound of a high vs. low impedance reverb tank? Some are a couple K ohms others are 8. If there is no difference I'll just get the one that matches one of the transformers I happen to have.