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unclekanus

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About unclekanus

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  • Birthday 13/09/1974

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    Melbs
  • Country
    Australia
  • First Name
    Chris

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  1. For the win. I've used Herbies dampers to good effect on old type #76 tubes which are all at least a little microphonic, Can really bring the sound together. That said, over damping can suck some life out of the music so let your ears be the judge.
  2. Further information: These are Mazda branded Tungsram ecc82 / 12au7 tubes. Brand new and tested NOS. Can be split into a matched pair and a single tube. Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  3. Agree. Jim knows what he's doing. The tube version is supposedly excellent and very keenly priced. Both are very good value and for the price you can afford to try some upgraded tubes or opamps if you're that way inclined.
  4. These are really well reviewed. My brother got one recently and he's extremely pleased with it. https://hagerman-audio-labs.myshopify.com/products/bugle3-phono-preamp-mm-mc
  5. Atilla does great work 👌 He's got some alnico compression drivers of mine that I'm looking forward to getting back once the coast is clear.
  6. Another tube I just thought of is the 274b. Also a 2 amp rectifier and it isn't too far off in spec to a 5r4gy. Plenty of them being currently produced but the sticker shock on some of them is fairly savage.
  7. I don't know if this is just a generic stock photo but if you get the tube pictured then this is a very good buy. Might be worth an inquiry. https://www.tubedepot.com/products/5r4gy Looks as though you can get 15% of your first order if you sign up for their newsletter.
  8. Earl's design choices aside, is an extra 50 or 60 vdc on the B+ and the subsequent changes in operating points on all the tubes going to make this amp sound better?
  9. Brimar 5r4gy/CV717 RCA 5r4gy from the mid 40's. Twin rectangle getters are best. Two best options hands down.
  10. I reckon this is a concern too. The discoloration is likely heat stress on the glass. I'd be contacting the retailer if possible.
  11. With the caps in the supreme range, I've never seen much difference in the orientation on a scope. It shouldn't make much difference when you have an outer foil at each end but perhaps they don't wind them like that. Copper foil is the way forward tho.... How long till Mundorf come out with a copper foil cap...?
  12. Mundorf have the outer foil at the end that the writing on the cap flows to. The Mundorf supreme range are all wound as two caps in series. I'm not a fan of them these days but they do work really well in power supplies. The ZN range is a nice signal capacitor. Film and tin foil and very heavy for the stated value compared to the metalised Supreme range.
  13. Yep. And I can hear the difference in a quadruple blind test.
  14. Quite certain Duelund and Jupiter are not wound as two caps in series.
  15. Are Duelunds and Jupiters non-inductively wound? I've never seen that stated anywhere before. I know certain Mundorfs are.
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