I have an AnTek 50VA 35v X 2 transformer, will this be okay for 2020 version or should I get a lower V secondary? Also am getting ready to make umbilical for power and my take on post is I should carry PE to second case for G. If I use quad shielded wire can I carry PE on shield or should it be separate. If I can use shield I could use connector recommendation for 4 conductor w/shield. Thanks. ps. this has been a fun build can't wait for results.
Hi, you can use that Antek and adjust RD-Link resistors value for the loaded raw DC not to end up high. Put 15 Ohm RD.
Don't carry PE directly to the phono case, avoid a possible loop noise path. It will see PE through the ☯️ diodes ground lifter anyway in the unlikely event of a hard failure.
Don't carry PE directly to the phono case, avoid a possible loop noise path. It will see PE through the ☯️ diodes ground lifter anyway in the unlikely event of a hard failure.
”It will see PE through the ☯️ diodes ground lifter anyway in the unlikely event of a hard failure.”
Given metal standoffs?
Given metal standoffs?
The zero lines are connected to G pad also and go all the way back through the umbilical to the raw pcb where they blend through power resistors into the antiparallel diodes safe lift to PE. The square gold plated standoff screw support pads are separate from the signal shield copper area.
So if the ground lug is not chassis connected, then a chassis direct to PE would probably be in order?
I’m thinking of maximizing the EMI diversion.
What is the reason with running ground lug, usually going to tonearm and platter bearing, through yin/yang? Hum caused by groundplane differences between returns and tonearm that is in close proximity?
I’m thinking of maximizing the EMI diversion.
What is the reason with running ground lug, usually going to tonearm and platter bearing, through yin/yang? Hum caused by groundplane differences between returns and tonearm that is in close proximity?
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The TT gnd wire wants to directly see the signal ground referenced phono chassis for quietness. TT/phono pcb/box on same "zero" reference level. The PE is mains earth safety connection for hard faults. Can also bring in mains earth pollution noise or allow ground loops between various PE connected chassis.
Finally I got At33ptg2.
Really good sound.
Really good sound.
Congratulations! Yours has stronger letters than mine (much older made).
Worked very decently together as stock low mass, but worked even better with added mass by stuffing the wand with silicon so its been modified to medium mass. Needed a brass ring for extra mass on the counterweight after that too.
What are the general opinion about SUTs on the input, maybe like a small LL1963?
https://www.lundahltransformers.com/wp-content/uploads/datasheets/1963.pdf
Can the totality benefit from a balanced in - SE out configuration or do we think it’s just an unnecessary device in the signal path?
https://www.lundahltransformers.com/wp-content/uploads/datasheets/1963.pdf
Can the totality benefit from a balanced in - SE out configuration or do we think it’s just an unnecessary device in the signal path?
If you have a SUT you try it. It certainly changes the tonality, sometimes also compromising the resolution a bit. But it depends. Its a trafo so it has a bearing on bandwidth and resonance. Different reflected impedance too. Bringing more cabling in the equation as well. In any case use low pF cable from a SUT's secondary to an MM input. It helps it.
So I have noticed in alot of the images posted that G left/right channels are tied to chassis ground also. If I understood your answer they should not tie to chassis but grnd with TT no chassis involved. If ground lug is isolated from chassis can I PE it?