I just purchased a CS3310-based preamp/source select/volume control on eBay to play around with after having read a little about alternative attenuators (an LDR based attenuator is on my DIY to-do list too). It's similar to this: Crystal c3310 Volume remote control preamplifier kit - eBay (item 190434511073 end time Sep-21-10 19:46:08 PDT)
Sadly it appears from the data sheet that there is no way to bypass the internal op-amp in order to use only tubes for the gain portion. Is that true? If so, perhaps a tube buffer after the pre would be of value here? What do you think? I know nothing about such internal op-amps and for that reason would prefer the option of bypassing with something I know (even if it's an opamp).
If it can be bypassed, anyone care to help me understand how?
Thanks,
Carl
Sadly it appears from the data sheet that there is no way to bypass the internal op-amp in order to use only tubes for the gain portion. Is that true? If so, perhaps a tube buffer after the pre would be of value here? What do you think? I know nothing about such internal op-amps and for that reason would prefer the option of bypassing with something I know (even if it's an opamp).
If it can be bypassed, anyone care to help me understand how?
Thanks,
Carl