Yes, that's much better..
By the way what is that blue wire that runs all the way across the chassis near the RCA jacks.
![WP_20170214_012[1].jpg](/community/data/attachments/554/554958-ac4c31773664dbe186a1ed6aad9aedf4.jpg)
0.4/2.8 = 0.14285 ratio log = -0.84509 x 20 = -16.90196dB = aprox. 110pF including RCA connector, internal wire and Miller input capacitance wow
Now I have 110pF phono stage + 220pF turntable RCA wire & RCAs = 330pF
Have I done well the maths?
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That's about having local reservoir so close to the DC input. What you want as a minimum is not to have oscillations due to long incoming wires inductance as you saw on the scope after the build rearrangements and you cured. Use maybe both if you find it enhances your build subjectively. Reservoir lytic + bypass MKP combined decoupling.
Kevin due to the high resolution I have had to change the VTA, sounds amazing!!!
Thanks again for your time and your patient with me.
Salas looking my PSU, for heaters regulators I use two transformers 12VAC 3A, your schematic use 9VAC 50VA, do you believe is enough? As power tx I have Lundhal LL1683 that have two secondaries 6.6VAC 3A,will be better if I parallel the two tx 12VAC 3A to have 12VAC 6A for one heater regulator and parallel the two Lundahl secondaries 6.6VAC 3A to have 6.6VAC 6A, if yes wich one for the have to be connected to B+ to elevate the heaters?
TIA
TIA
I am glad I was able to help, the topic of course is of interest to me since I design phono stages fairly frequently.
The two input tubes ask for 0.34+0.34=0.68A heater current at 5.7-6.6V (6N2PEV)
The two output tubes ask for 0.6+0.6=1.2A heater current at 6.3V (6SN7)
You don't need to parallel any heater secondaries of your transformers to cover the above.
Individual heater transformers when available (as you have) are arguably a better solution than taking heaters feed from one main transformer of many secondaries.
Also if using 6.6V secondary when not doing AC heating the situation is asking for low drop out chip regulators to make sure they always regulate as the mains play.
The two output tubes ask for 0.6+0.6=1.2A heater current at 6.3V (6SN7)
You don't need to parallel any heater secondaries of your transformers to cover the above.
Individual heater transformers when available (as you have) are arguably a better solution than taking heaters feed from one main transformer of many secondaries.
Also if using 6.6V secondary when not doing AC heating the situation is asking for low drop out chip regulators to make sure they always regulate as the mains play.