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Showing content with the highest reputation on 03/17/2020 in Posts

  1. @spritzer @Voltron ha, I can find cakes anywhere in the world! @Voltron I had looked up his bakari 2 years ago, when friends went to Iceland, and sent them there. Everything else in the city is brightly colored, I found it funny it was white..... I guess towers are too tall to be lost in snow. More amusing @CarlSeibert had just said "I wonder if we will see @spritzer 's bakari.... and I say you mean Right There we just saw it". Wooo Weee Oooou
    4 points
  2. I need a music pick me up-} aWE5jx3_460sv.mp4
    4 points
  3. Yesterday I realized that, unconsciously over the years, I have bought almost all of Trane's discography on vinyl. Today touch this PS: Every day I enjoy more of my Pass Xono DIY.
    3 points
  4. MLA showed me a great article here: http://www.valvewizard.co.uk/heater.html Basically, there can be leakage between the Heater and the Cathode. Since the heater is usually driven by AC at 60hz, some of this hum can come into the signal path. Elevating the heater to a voltage near the Cathode can reduce the leakage and the hum. If you have an isolated transformer for the heater, then it will allow the heater to eventually elevate itself as voltage on the Cathode drives to heater to 'float' to near its own voltage. But this still results in hum in some cases. So forcing the heater to a voltage that is near to the cathode can help. Here is the way I constructed my divider: And, as stated before in this thread, do NOT use the same transformer to power both the Input and Output stage tubes. You must you 2 totally independent windings, one for input stage, other for output stage heaters.
    2 points
  5. Watching a combo pack of: Ken Burns - Country Music https://www.pbs.org/kenburns/country-music/ and Ken Burns - Jazz https://www.pbs.org/kenburns/jazz back and forth keeping the timeline roughly in the same spot both worthy
    2 points
  6. We've all had issues with hum on the SRX-P. A couple of weeks ago I changed the CV4024 for a pair of GE 5751 in the second stage and I had a Hum, always on the same channel.... Just I swap them out for a other pair and the problem is over. Interestingly this pair of GE 5751 in the Megatron are totally silent.
    2 points
  7. ok, one more srx-plus is alive and kicking. i have managed to zero everything, but i have some annoying hum issues on left channel which i am pretty sure i did not have when i first tried the amp. even with the hum it works really nice with sr-009's ability to embed music directly into your eyes whether they are open or closed. for digital attenuator i have borrowed an idea that i like on rme adi-2 dac. volume steps are changing depending on the rotation speed of the encoder: 0.5db, 1db or 2db. maybe for tube amp this is not really needed as you would reach the volume level necessary to hear music right about the time the tubes are nice and warm. now i feel disappointed in myself that i did not impulse buy all the parts for the carbon so i have something to do until the situation with the corona virus calms down a little bit..
    2 points
  8. The Tennessee attorney general’s office, beat them to it https://www.nytimes.com/2020/03/15/technology/matt-colvin-hand-sanitizer-donation.html
    2 points
  9. Their bass quality is outstanding. Stat-like (I'm a former SR-007Mk1 and SR-009 owner) but with some much need heft. Overall, I would say they have one of the best FR response of any headphone I've tried.
    2 points
  10. Phillips 8417 Tube. Click for slightly larger.
    1 point
  11. http://deewm.com/Webcache/The_Valve_Wizard/Heater_Filament_Supplies/Heater_Filament_Supplies.html something like this(lower pic)? it is basically same like valve wizard, but with artificial centre tap. also what i found regarding separate trafo/windings.. what i understand, only separate windings are needed, not two transformers. somebody please correct me if i am wrong.
    1 point
  12. I have had hum/buzz issues with my SRX Plus occasionally. I have always been able to trace the issue down and resolve it. Agree with Blueman2 that you should be able to have a noise-free SRX Plus. Here are 4 reasons that cause hum\buzz in my experience: 1. position/arrangement of the filament supply wires 2. dirty pin(s) on the tubes 3. noisy tubes 4. poorly matched input tubes 2 and 3 can be easily identified by swapping the tubes around. Good luck and enjoy the amp!
    1 point
  13. @tomislavkufrin, Congratulations!! My SRX-Plus remains one of my favorite builds, even with my Carbon and Blue Hawaii. There is beauty in simplicity, and the SRX-Plus is all of that. As for the hum, I too have had issues with hum in the past, but was always able to get rid of it by 1) using different tubes and 2) elevating the filament voltages, and 3) fine tuning the trim pot settings. As for elevating the filaments, see my old post earlier in this thread: Definitely do not give up and accept the hum. I have 2 SRX+ builds, and both had hum at first but after doing some tube swapping and endless fine tuning of the trim pots, both are hum free. Enjoy!!
    1 point
  14. @Seed Lady Bonnie, how did you know that Birgir's bakery was in that building? I have been reading Arnaldur Indridason and other Nordic noir novels and I wish I had @spritzer around to pronounce the place names and surnames because I know I'm not doing it right in my head.
    1 point
  15. Unfortunately I'm going to have a lot of time to go over my vinyl collection ...
    1 point
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