Tubes Asylum

Get the schema and measure everything NT

84.237.199.203

Lowrider

In Reply to: RE: audio-nervosa NT posted by Japesgalore on June 27, 2008 at 15:37:19

...

Antonio Melo Ribeiro

http://www.melorib.com/diy.html (Open in New Window)

Follow Ups:

RE: Get the schema and measure everything NT - Japesgalore 01:47:13 06/28/08 (4)
What is 'the schema'? A tube tester? Voltmeter? Sorry, I'm without a clue on component DIY. Are you suggesting that there may indeed be a problem, even though the change to the sound is seemingly so subtle?
- Better safe than sorry... - Lowrider 01:58:04 06/28/08 (3)
  If you like to live dangerously, after all it is only a player, dont take it to someone who knows how to check it... ;)
  Antonio Melo Ribeiro
  - http://www.melorib.com/diy.html (Open in New Window)
  Edits: 06/28/08
  - RE: Better safe than sorry... - Japesgalore 02:11:52 06/28/08 (2)
    Soooo, I should have it checked? Even thugh it's working now something might blow in the near future because of the manner of the tube-change? I don't really get it, there seems to be a fair few cryptic responses on this thread (or maybe it's me), but I will take it someone who knows how to check it. Anything he should be looking for in particular because he's likely to say "it plays music, so what's the problem?"
    - RE: Better safe than sorry... - becketma@yahoo.com 19:51:12 06/28/08 (0)
      Relax and enjoy your music.
      Its not like running a motor without lubrication.
      
      It would be easy to short one of the tube's pins, especially if your sockets have a metal post in the center.
      
      I've hot swapped quite a few 6992s in an amplifier when the manufacturer said it was OK to do. It used "global-feedback". Retubing it just required minimising the voltage difference on the last dual triode.
      
      And, remember that you probably have at least 100 volts that can wake you up if you slip! The bite won't be bad. But, you can develop a habit of not pulling your AC cord before changing tubes, and some day, do that with an output tube with more than 100 volts on it.
      
      Bob
      
      "He (R.M. Nixon) was a foul caricature of himself, a man with no soul, no inner convictions, with the integrity of a hyena, and the style of a poison toad." H. S. Thompson
    - RE: Better safe than sorry... - Lowrider 04:54:12 06/28/08 (0)
      If the tubes are not ON in stand-by, then you should be OK...
      
      Antonio Melo Ribeiro
      http://www.melorib.com/diy.html (Open in New Window)

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