wooo... we have now crossed the 20,000 thread and 2000 pages. This should be a record in DIYAUDIO. Shall we celebrate !!
I solved my ground loop problem at last! It was so obvious in the end. My two clock PSUs share secondaries on the same transformer, but they were wired in opposite directions to each other. I had been hunting around the servo and output supplies, but the problem was right in front of my nose the entire time!
It can be tricky indeed, especially with multiple transformers in there.
Good to hear you nailed it!
Good to hear you nailed it!
Thanks! I just hooked my muting relay up to power and signal too and it's working great. Just waiting on Mundorfs. It's been a good night!
Very nice! 🙂
Pity the large values are so expensive... that's why I chose the EVO's.
I need a 15uF for my tweeter sections, not going to happen 🙁
Pity the large values are so expensive... that's why I chose the EVO's.
I need a 15uF for my tweeter sections, not going to happen 🙁
Has anyone ever tried building a transformerless AC-DC supply? I just came across this link and was wondering if such a thing would work well instead of squeezing multiple small toroids in.
Transformerless AC to DC power Supply circuits | Eleccircuit.com
Transformerless AC to DC power Supply circuits | Eleccircuit.com
Transformerless PS normally uses switching power design and it generates a lot of noise in the output which I won't recommend.
It's not a switching design, but nonetheless not suited for use in CD players.
These types of circuits can deliver just a small amount of current, the series capacitor acts as an impedance and blocks most part of the mains voltage and must be very large for larger currents, which is not very practical. It behaves like a big series resistor, but without the heat dissipation. It can be used for a relay or some LEDs.
And then there's the safety-issue: without a transformer, the circuit is directly connected to the mains grid. Potentially lethal!
These types of circuits can deliver just a small amount of current, the series capacitor acts as an impedance and blocks most part of the mains voltage and must be very large for larger currents, which is not very practical. It behaves like a big series resistor, but without the heat dissipation. It can be used for a relay or some LEDs.
And then there's the safety-issue: without a transformer, the circuit is directly connected to the mains grid. Potentially lethal!
Oh, I did not check the link 🙁
Yes, RAY is right. That design is not suitable to supply the power to CD63 as the current is FAR TOO small.