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About amped

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    Thorens TD125 Mk2, Nagaoka MP110, Shure SPS, Schiit Mani, Sony CD player, Bob Latino VTA ST120, Klipsch RB-5 & Chorus 2

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  1. You might try Holger at https://www.erhard-audio.com He's the man in the US and he helped me out a lot with this. Pavel in the Czech Republic designed and makes the board. He is helpful but English isn't his first language. There's also a time delay depending on where you are but, he is responsive. https://www.audioamp.eu/en-detail-901899168-modules-for-to-optimize-bias-with-an-supply-of-bias-ab-q-st70-st120.html Hope you get it sorted out. The ST120 is a fine sounding amp.
  2. dynacotubeaudio.forumotion.com
  3. Here's the manual that came with the board. http://www.***.cz/files/AB-Q_ST-70_ST120_manual.pdf Once it's set to the desired bias voltage by the installer, there's no real hands on. Make sure they know what tubes you're using and clear it (voltage) with Bob. I was still checking my bias for a bit after installing but all 4 tubes were always the same (as designed). Hope this helps. Bob was/ is a pleasure to deal with as well.
  4. I agree about the install- do it all at once.
  5. Bob is right about the AB. I got it and had issues getting it installed. Everything was great prior to adding this. I got the PIO caps and the attenuator these are positives. I’m using KT120s, a center Brimar CV4003 and Bob's NOS RCA 5963’s on the outside. Amp sounds great and bias was always very close when I checked it monthly. It’s now spot on w/ the AB but that complicated it. The AB does have a delay so I got a Weber WS-1t s/s rectifier. All in all, it’s a great sounding amp.
  6. I have a Latino VTA ST120. It sounds great and sound characteristics can be tweaked a bit by tube rolling. I don't have Khorns BTW. You could search or pose the question on that forum: http://dynacotubeaudio.forumotion.com
  7. I have no experience with any Curcio stuff but this might be helpful... http://dynaco-doctor.net/sup_3.htm
  8. I second that. This is mine (not red plating BTW)
  9. I don't have F3's but do have a Bob Latino amp (ST120) and it sounds wonderful!
  10. I did say I'd listen to them first. The terminal cups read 1989 so I'm just trying to know what's out there. IF I don't love what I hear, I can make an informed decision and it won't happen right away. It's just homework. AVGUYTX, Nope
  11. Hey 314, what mods did you do to your C2's? Just curious as I got a pair a few months ago. I have to get them to NY before I can listen and see what needs doing. I saw your SET12 mention but can't find anything beside the Audiogon posts. I don't think I can spend $$$ but maybe if I got some background I'd get pointed in the right direction. BTW, I recapped my RB5's via Crites.
  12. Maybe I'll look for the 5814 down the road. The Brimar makes me very happy. KT120's have tight clearance w/ the Dynaco cage. Until I have my Chorus 2's up and running I'm holding off on more tubes. Update- I did end up getting KT120's after someone confirmed cage clearance at Bob's dynaco forum. They sound great. I only have 3-4 hours on them so can't really judge but off the bat, they sound fuller than the TS 6550's. Definitely more on the bottom as well.
  13. Not saying this is the only seller but, I got mine here: https://www.upscaleaudio.com/collections/preamp-tubes/products/brimar-cv4003-12au7
  14. I see Bob L. says the 12bh7's have higher gain and they can be used. Have to look into why they should be. Not in much of a hurry to roll at the moment. Also tried "Hungarian" Amperex in the pre's. To me, no difference from the Sylvania's. Tried clear top D-getter RCA's sounded a bit too bright- so went back to the Sylvania's... Yeah, that Brimar- WOW. Supposed to be better especially in the highs than Mullard.
  15. Power: TungSol 6550 reissues. (also got a good deal on a quad of KT88EH's- but I haven't tried those yet) Center: (phase splitter?) Brimar NOS CV4003 /12AU7) Outers: Sylvania 6189 /12AU7 NOS New- Just doing the AutoBias mod so will use a Weber WS1-t s/s rectifier that replaces the TS 5AR4
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