Sadly, yes I never wrote anything down. I will try to sketch out the basic circuit this weekend and post some more details in another thread.I will see if he’s willing to post a schematic. Chances are good though that he hasn't anything written down.
I haven’t tried them but Michael has so I will let him reply.Since we were talking about trying different components yesterday, i remembered that there are new AN resistors, have you tried them?
Here
I tried a pair of the 2W Niobium resistors - in my DAC on the cathodes of a 27 tube. Overall I prefer AN silver tantalums to the Niobiums, but would use the Niobium before any of the lesser tantalums. The Niobium had smooth, crisply detailed highs and a more full, present, and even/balanced midrange.Since we were talking about trying different components yesterday, i remembered that there are new AN resistors, have you tried them?
Here
Thanks Michael, ive been pleased with the 2w magnetic ones so far and havent tried the silver ones yet (i have 2 of the 1/2w silver ones to try on my earphones when i get the soldering iron out next). I need to get a few resistors, one being a cathode resistor for the driver tube so will give the Niobium ones a go there.I tried a pair of the 2W Niobium resistors - in my DAC on the cathodes of a 27 tube. Overall I prefer AN silver tantalums to the Niobiums, but would use the Niobium before any of the lesser tantalums. The Niobium had smooth, crisply detailed highs and a more full, present, and even/balanced midrange.
The AN silver tantalums are my favorite resistor. They account for half of the resistors in the signal path of my phono stage (2 of 4!).
Hope you like them. Peter Q has indicated there will be a silver niobium resistor at some point, which could be better yet.Thanks Michael, ive been pleased with the 2w magnetic ones so far and havent tried the silver ones yet (i have 2 of the 1/2w silver ones to try on my earphones when i get the soldering iron out next). I need to get a few resistors, one being a cathode resistor for the driver tube so will give the Niobium ones a go there.
If this were a linestage, an OPT with a stepdown ratio would make more sense since it gives a low output impedance and typically a linestage these days needs minimal gain so the loss of gain would not be a problem. It's different with a phono stage. You usually don't want to throw away gain, and that's especially true with this design where the gain is adequate but there is none to spare. Also, output impedance is usually not a major issue with a phono stage since it typically feeds an active linestage via relatively short cables.Hi all,
My first post at this Forum😊
A question to Salectric: you have used Slagle 1:1 as OPT. I believe you used this because you had it on hand. 1:1 turns ratio is not common to use as OPT, do you see this as optimum or would you recommend something else? Others can give their opinions as well on optimum OPT specs for this specific case.
Thanks Salectric. My system has a passive Slagle AVC + 300B SET amp, if I remember right you had a very similar type of a system. So there should be no issues with compatibility?If this were a linestage, an OPT with a stepdown ratio would make more sense since it gives a low output impedance and typically a linestage these days needs minimal gain so the loss of gain would not be a problem. It's different with a phono stage. You usually don't want to throw away gain, and that's especially true with this design where the gain is adequate but there is none to spare. Also, output impedance is usually not a major issue with a phono stage since it typically feeds an active linestage via relatively short cables.
Lastly, Dave Slagle says a 1:1 sounds better than a stepdown transformer.