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wheelz.cpw.inc

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About wheelz.cpw.inc

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    Melbourne
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    Australia

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  1. wheelz.cpw.inc

    Tube amp troubleshooting help... please?

    I'll shoot you a pm.
  2. wheelz.cpw.inc

    PRICE DROP - FS: 12ax7 Tubes - Various Lots

    I'm pretty inexperienced, but I found NOS Tung Sol's to help a lot tightening the up the bottom end.
  3. wheelz.cpw.inc

    Tube amp troubleshooting help... please?

    Thanks, that's heaps useful. It seems that both tubes have continuity on the big'uns. But yeah, the sockets are stupid loose, I'm banking that's probs the issue. Let's assume for a moment that the sockets are screwed. Is it likely to have done significant, lasting damage to the amp itself? Thanks again.
  4. wheelz.cpw.inc

    Tube amp troubleshooting help... please?

    Yeah, that portion of the one on the right does glow after a sufficient period.
  5. wheelz.cpw.inc

    Tube amp troubleshooting help... please?

    None of the tubes seem to be original, though the unit is second hand, so i'm not particularly surprised.
  6. Hey guys, Recently got a bargain on a Yaqin MS-300c, however it doesn't seem to be functioning. I suspect this is maybe why it was so cheap, but given that it was advertised as working, i figured i would try my luck knowing that i had plenty of legs to stand on if it turns out to not work. The amp turns on and all lights and selections operate as they should and cosmetically it seems perfect, however it seems that i can't get any output (i've tried multiple sources and the speakers are fully functioning). The power tubes are mismatched and don't seem to be illuminating like they should, and i feel like the problem lies in that they feel very loose in their sockets. If i had to guess i would think that maybe someone has put the power tubes in incorrectly at some point so the small holes are now as big as the big ones. Now, i have an EXTREMELY basic understanding of some electronics, but it might be best to talk to me like i am a 3 year old just in case. I feel like the first thing to do is test the voltage on the sockets for the power tubes, but given this amp is the size of a toddler and the transformers are the size of said toddler's head, i am almost positive that i need to be especially careful not to electrocute myself. So... can i do that myself without risking my smoking demise? And if so, how would you go about doing such a thing? I have a multi-meter, so i guess i'm asking where to point the thing and what numbers i should be looking for. Obviously testing some different tubes in there would also be useful, but i'd rather not shell out that kinda coin to troubleshoot an amp that may be beyond saving. Any other suggestions as to what problems i might need to look for would be super helpful. I attached some photos, because, surely it couldn't... Thanks heaps in advance!
  7. wheelz.cpw.inc

    Tell me about 300B tubes.

    This has been incredibly helpful, so thanks for that. And let me follow up with another question: When you say input tubes. I feel like that's not the rectifier (dunno why, just do), so are we talking about the 6n8p's or the 12at7's? And as a slight side note. Can someone shine some light on which direction 12ax7's and 12at7's are interchangeable?
  8. wheelz.cpw.inc

    Tell me about 300B tubes.

    You seemed like such a sensible bloke up until now.
  9. wheelz.cpw.inc

    Tell me about 300B tubes.

    Just came across this: "Before we go into the details, I want to emphasize that every 300B tested had the typical 300B sound character. Sound-quality differences were by no means irrelevant, but were smaller in my experience than those between the best and the worst 6SN7 or ECC83/12AX7 that I have heard. So even the most modest 300B should bring you some of that magic." - Makes me think you might know what you'er talking about.
  10. wheelz.cpw.inc

    Tell me about 300B tubes.

    Thanks Wilco. They're seemingly a little more difficult to find as well as more expensive than others I've played with thus far. It's likely to be a hell of an exercise in self control
  11. wheelz.cpw.inc

    Tell me about 300B tubes.

    An unreasonable amount of the decision surrounding my amp purchase weighed on it having a VU meter. Because... well... it's a VU meter! I'm probably own one of Erics by know if i wasn't so hung up on it
  12. wheelz.cpw.inc

    Tell me about 300B tubes.

    Now, i'm almost positive that buying audio gear based on aesthetics isn't the best idea, but i'm not entirely sure i care all of a sudden.
  13. wheelz.cpw.inc

    Tell me about 300B tubes.

    Shortlisted. Thanks you kindly, i'm fairly confident i will
  14. wheelz.cpw.inc

    Tell me about 300B tubes.

    You're not wrong, they're pretty as hell. When you say transparent vs robust i am guessing you're saying that they tend to improve clarity, staging, detail etc, more than say, adding weight to particular areas?
  15. wheelz.cpw.inc

    Tell me about 300B tubes.

    Yeah. If i'm honest this is probably why i wasn't considering buying anything with 300B's just yet as i would have preferred to have a better idea what i was doing before throwing around that kinda coin. But when something this cheap falls into your lap i'm not entirely sure it is possible not to buy it I was looking into using my 12ax7s in place of the at7s as i believe they are interchangeable in one direction but not the other, however i've yet to find definitive word on that problem. The rectifier is something i want to consider changing as well. I'm wondering if it is worth just buying some reasonable quality 300Bs so i know i have at least a solid base, then messing around with the others a little. Save rolling the big boys for a time when i have a little more money to burn.
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