Shane, .
Broskie has the answers....CCDA: constant-current-draw amplifier
the best sounding tube to my ears is the russian 6H23-eb...wavebourne introduced me to this tube and i never looked back...
this is a public forum, as long as no rules are violated, anyone can post....since joining here in 2013, i have learned a lot about tubes that it is a crime not to share them...
i conducted a build out / teach ins last year about this topology using the 12au7....about 30 boards were built to the satisfaction of people who joined up.......
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Thank you.
Le Basseur: Please share any additional photographs of KSL equipment which you may have which may inspire our DIY efforts - thank you.
With distance from previous posters, KSL equipment is the best I have listened with.
With distance from previous posters, KSL equipment is the best I have listened with.
I cannot vouch that the pictured Kegon was 100% original or some things were modified in it...it's a long time since I had it on my bench and I just cannot remember every detail about it.
You made me curious (OP,sorry for the digressions!) about this.Like in the picture,I always routed the HT wires as independent (not twisted or touching,double-isolated) because I always had a fear for the rather large potential between the two (more than 800V sometimes) and not very confident in the PVC/whatever isolation to withstand a possible accident.
Otherwise,the RFI supression you mentioned...am I wrong if I trust the rather generous ammount of uF's and H's following the rectifier?
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I'd also say that twisting the HV wires serves for hum suppression rather than RFI, as does twisting any AC wiring.
Best regards!
Best regards!
the late AndrewT keeps a close eye on ac lines not twisted.....it is a good practice in any book...i have not encountered problem because of twisted wire pairs...
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Looks like you missed my point.I wan't asking about AC lines in general (eg.AC mains,AC filament wiring wich I'm familiar with) but of this specific given situation - AC wires between XFMR and rectifier valve.
Also,excuse my ignorance,who is AndrewT?
i criticized your drawing for not twisting wire pairs, the main reason for twisting is so that the loop area between parallel wires are minimized, it is not so hard to see, your parallel wires from the traffo to the rectifier has the biggest loop area, twisting them minimizes the loop area, did you get what i was driving at...? any field created is effectively cancelled due to the twisting...
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now where is the like button?
i build the line stage of 77 with a regulate power suply i had,i lisen many cd ecm,act, classic music,and i dont like it.The sound is mood,the treble is thin.The version i make is with 8.2k and 5.1k parallel in gain stage and two 250k parallel for another stage,250v b+ and the tubew ecc82,ecc81
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