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aussievintage last won the day on October 7 2019

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About aussievintage

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  1. Very odd about those preamp valves. I have never had to replace a preamp valve in an amp due to it being worn out. Usually it was because in the days of old guitar amps etc, they often got rattly and microphonic due to physical abuse. I have removed 12au7 12ax7 style valves from equipment that ran all day every day, and they still tested the same as new. I have bought boxes of old used valves, and nearly all of the small signal ones test like new as well. Hard to kill them. New production valves might conceivably be less well made by some manufacturers. Rushing bass sound
  2. I don't know. My experience using ultrasonic cleaners for drafting pens left me unimpressed. Just use a solvent cleaner liquid and brush.
  3. Most devices have internal voltage regulators that break the input voltage down to what they actually need. Maybe 15V or 12 volt or less in places. So, by running it off 18V rather the 19V, you are just reducing the margin above that, and some regulators need 2 or 3 volts at least, more than what they are outputting. If you go too low, it will eventually produce problems.
  4. Just a heads up that you only need to look for voltage and current ratings, as the power rating is simply the first two multiplied together.
  5. You probably know I love small SET amps. Have you ever listened to a 2A3 style 2 watt DHT SET? Compared to triode wired pentodes, it's a step up again.
  6. Yep. It's easy to see why cable discussions, are banned in some places, or at least restricted to special areas.
  7. Of course not. Since they disagree, probably some of them got it right
  8. Why do you need a mixer? I just use a simple shielded switch.
  9. Digital copies (with error detection and correction) need to be regularly made and verified. Maybe the 5 years you suggest is reasonable. I have read about it being referred to as "refreshing" the data. The new verified copy then becomes the primary copy for the next period. In this way, you avoid the corruption problem that you refer to.
  10. I would definitely not count it out yet, especially as you describe it going bad in one listening session. I never consider a stylus clean until I use a proper liquid solvent cleaner and brush. Zero dust and magic eraser are great between plays, but every so often I feel a stylus needs a good chemical clean. Get some of this
  11. For a start, a good shielded metal case, to reduce the electrical noise, with adequate cooling. A good quality external DAC is also a good place to spend your money.
  12. Do you have the raspberry pi in that same rack? What about all the computer noise it is generating? I think we should be thinking about levels of grey, not black and white. Any and all things can be said to have an effect, but as I said, to keep it cheapish, spend your money where it has most effect, not chasing minor stuff.
  13. Sorry but I disagree. The raspberry pi is a computer that generates all sorts of it's own "switching noise" and changing the power supply cannot change that. Especially when being used via USB out - there is nothing analogue being fed by the power supply. The thread title is about something "cheapish" and a linear supply is not in keeping with that. Better places to use the money exist.
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