russel
./_dazed_and_confused
Thanks for sharing the picture!
It’s from my brutalist/industrial phase.
Thanks for sharing the picture!
The absence of a 'Miller' capacitor has been suggested by some as being one weak point.
As you ask! All three transformers have a 240V primary and with 35V secondaries.What's the difference in voltage out, winding resistance and VA?
I have a Quasimodo kit - hadn't thought to use it TBH.What experiments have you undertaken with snubbing? A little carefully crafted filtering calculated/measured with a quasimodo board might provide interesting results.
Sad to read this. I use EI cores with preamp, DAC and phono but these are relative small. The only big EI core transformer I have is in my isolation unit and yes there is a buzz.Ive moved back to Tiger Toroids to suppress my frustration of the ETC hum/buzz, the Tiger Toroids are totally silent electrically and mechanically. There is a slight loss in low level detail but I'll have to live with that for now.
I have other EI transformers from other manufacturers in use or have used inc larger for power amps and none exhibit the level of noise I'm hearing with these. Ive never gone down the C- core route but it's a thought.Sad to read this. I use EI cores with preamp, DAC and phono but these are relative small. The only big EI core transformer I have is in my isolation unit and yes there is a buzz.
Anyone made a comparison between R-cores and EI-cores with a poweramp ? The problem with R-cores is that it's very hard to get them custom made.
C-cores are also an option, though kind of costly, rarely seen as main transformer so haven't yet read a real comparison with them.