PeeCeeBee preamplifier
- Thread starter hydrovac
- Start date
Temporary hook up done, checked the rail voltages (was reading 13.75 VDC) and decide not to trim.
As the module came fully populated and tested by Shaan, i did not go through the preliminary steps (before powering up)
For testing i have used an Alps pot on volume (will connect the attenuator later on when i do final wiring)... only hitch is the signature pot PCB has common ground, and this resulted in a ground loop (hum), audible when the SIG pot is turned halfway (will need to make a proper PCB)
So, kept the SIG pot at minimum and went on with a listening test. Shaan suggests some prolonged listening with the signal set to different positions for different music types to find your individual preferred settings for these. I’ll be exploring this during the next few weeks or so, after eliminating the hum.
...
As the module came fully populated and tested by Shaan, i did not go through the preliminary steps (before powering up)
For testing i have used an Alps pot on volume (will connect the attenuator later on when i do final wiring)... only hitch is the signature pot PCB has common ground, and this resulted in a ground loop (hum), audible when the SIG pot is turned halfway (will need to make a proper PCB)
So, kept the SIG pot at minimum and went on with a listening test. Shaan suggests some prolonged listening with the signal set to different positions for different music types to find your individual preferred settings for these. I’ll be exploring this during the next few weeks or so, after eliminating the hum.
...
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