• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

..my little ecc82 preamp-project

i thought i have to show u guys my "beta" preamp, just to encourage your own building a little..


  • tube preamp liten2.jpg
    tube preamp liten2.jpg
    34.8 KB · Views: 1,174

I just dont have any schematic yet... but the basic construction is the simple cathodefollower with ECC82 / 12AU7, constructed from the usual schematic that have been posted in this forum several times before, and just with small mods/adjustments to get the proper match to my power amp.
-the sound is nothing to be especially excited over, but for me and the budget-gear i use, it was THE difference that i needed to enjoy my music collection.
of course, the joy of building your own equipment, that works good, is more worth than "true HiFi".

Measurement and feedback!?

The measurements refer to the preamplifier is given below in Scheme (Figure 1)!
Please someone let that little comment about this amplifier, if it does as a power amplifier.
Feedback to be about the sound and display measurements if it worked.
Many thanks in advance!:rolleyes:

Last edited: