Hi i luvemusic 2,
After you set up both power supplies I would just re-measure the voltage at the tube socket pins to make sure that nothing changes.
Personally, I have a different type of setup with two differently wired breadboards attached to one voltage regulator. I just have to make sure that only one tube is plugged in at any one time. To switch from 6DJ8 to octal tubes I just unplug the Vector adapters and switch to a second set of Vectors, making sure that the voltage is set correctly.
(I tried having one Vector plugged into the other, i.e one on top the other, hoping that I would only need to switch the tube and the voltage, but that did not work at all. In retrospect, I should have figured out that that it is a dumb idea to mix two different wiring schemes.)
Anyhow, waiting for an upgraded 5A voltage regulator for them power hungry 6SN7 variants...
There are custom made Bugatti Weyron level systems out there costing mega bucks:
- VPI Scout turntable + Shelter 501 MkII cartridge
- Krell KPS 20i/L cd player
- Gryphon XT MC preamplifier
- Mandozzi DART harddiskrecorder
- Nagra ARES harddiskrecorder
- Self build power amplifiers using 6SN7 - 300B - TB3/1000. These are on the outside of the audio rack. The dedicated power supplies are below; the amplifiers themselves are above
- Self build tube headphone amplifier using 6SN7's. It is in the middle lower shelf. The dedicated power supply is next to it. It drives a Grado RS1.
- Self build Avalon Opus Ceramic loudspeakers with external crossovers.
The power amplifiers deliver 70 Watt single ended Class A. The output triodes are pre-WWII transmitting triodes from Philips. The American equivalent is the well known 833A. These triodes are fired through a step down interstage using EML 300B's. I have the 300B-XLS and the 300B-Mesh. And it is a matter of taste what to choose; both perform excellent !. The 300B-driver is essential in these amplifiers for the output triodes want to see a very stable driver.
The amplifiers are fully hard-wired. All needed voltages do have there own power line consisting of power transformer - rectifier - snubber - coil - capacitor - coil - capacitor. This adds up to a total of 32 coils and transformers. And as these amplifiers run on 1200 Volt everything is quite large. The complete amplifier weighs more than 300 kgs.
This guy claims that the listening experience is better than listening live in a concert hall.
Why I am showing this? Because we have something in common - he is using 6SN7 tubes as drivers. I think we are on to something...