The On-Topic, OFF-TOPIC Thread

About the only time that would happen on my TT, is a cable that somehow become loose, or a tonearm wire, or a headshell connection. But rare, really rare :wink:

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I think the only real “turntable issue” I’ve had has been after moving …

I wound up in a situation where my table was spinning up REALLY slowly, and and complex passages were slowing down replay.

Turned out to simply be that I needed to refresh the bearing oil and replace the drive belt on my table. I did both, even though I’m not sure which it was. Both needed doing anyway.

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Being a turntable repairer I can tell you that it happens very often that after a moving a turntable has your problem because it somehow loses its bearing oil. 40% of the turntables I repair have the problem you described. You did the right two moves since many times the belt gets damaged from the spins with little or no oil and its better to change a belt than ruin records.

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I do remember our move back to Fl in 2014, took 2 weeks to get my table setup and like you noted bearing oil, so important.

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My wife sent me this pic she found of some “new headphones “. Not sure where (or why for that matter) she finds this stuff…

I tried to come up with a clever name for this “model”…and failed. Got any clever names.? I”m counting on you @pennstac

Best I could do is TWS= Two wriggling snails

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Not sure I can help but they look like the Beats Caracol Sport model to me.

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Not getting your headphones wet is common knowledge but these don’t do well around salt

They must be an early prototype of B&W’s new headphones, based on their Nautilus speakers.

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That is brilliant, my friend. Talk about Snail’ing your way into Hi-fi. :slight_smile:
I’m saving this photo to my camera roll. It is incredible. :slight_smile:

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They are the new Apple Gastropods.

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Nice!!! :joy: well done!!

@Audiophool - for your list;
SCG - (Es-car-got)
Self-Positioning IEMs
Frogcal Clears
Amphibaphones
Swampheiser 650s
SNC - snail noise cancelling
Etymotic Garden Edition
Raal SR1a Ribbit headphones

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Type A versus type AB amps:

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I meant to comment on this last week … but I got distracted/displaced … and since everyone else here has passed out (it’s 23:35 in France) …

After more than a year in my new home, I’d had no issues with noise/hum through my tube amp (Woo WA234MKII Monos), regardless of what I was driving - low/hi impedance and/or low/hi-sensitivity headphones and/or Raal’s TI-1a …

The background was utterly silent; total "blackground" … as it has always been.

Utter VOID

Then …

… out of nowhere I’m hearing hum at a level that is evident in quiet, never mind silent, passages in music … and that is clearly audible, at unacceptable levels, when no music is playing.

Even pop/rock stuff.

That doesn’t work for me.

Since nothing has changed in my home, it has to be something in the shared electrical feed among the houses in our neighborhood. God alone knows what (and I say that as someone that does a lot of radio stuff, and take great pains to ensure it doesn’t affect anyone else) …

10 loops through various serious ferrite cores (each additional loop, after the first, attenuates rogue signals by 2x per loop … i.e. a 1024x reduction in noise) didn’t help.

What did fix it?

I put this back in my power chain.

All good now.

Not really sure how the issues the CMX-2 fixes propagate to me from issues elsewhere (has to be elsewhere, nothing in my home has changed in this time … and I disconnected everything else to test), but adding it in the power feed/chain to my WA234 fixed the noise/hum issue instantly.

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Wow. That is quite a story and having a 200$ powerline conditioner fix that problem. I would’ve thought you had a microphonic tube or a bad coupling capacitor in the amp.
Anyhow, I am absolutely amazed you have the WA 234. There really is no other mono block system like it. I hope to hear more of it from you in the future, especially used strictly as a headphone amplifier.
Cool story, Ian. Thank you.

DC offset mechanical transformer hum? Same kind of device as PS Audio’s old Humbuster 3.

I have one of those CMX-2s and hoped the device would resolve the hum I had on one of my ampsandsounds Kenzies. Turned out to be something else. I still keep it around in case a similar situation arises.

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That was, originally, what I bought the CMX-2 to address (in another home). In this case, it wasn’t - this was clearly electrical. And it turns out the CMX-2 didn’t actually “fix it” either; I now think it was just the process of power-cycling the amp to add it into the chain.

I think the actual culprit was a tube on the verge of failure.

I say this because this morning I was treating to a bit of a fireworks show as one my 2A3 tubes suddenly decided it now identified as an arc-lamp …

Fortunately the amplifier seems to be fine.

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I had a similar light show a few months ago - amp seemed unfazed. I did some brief googling and it looks like these failures spare the amp for the most part. All I had to indicate that there might have been an issue was that the tube was a bit noisy/sputttery on occasion. It was a supposed NOS that was always occasionally noisy.

Im hoping that Im not stubborn enough to hold on to a tube that is noisy, especially if its a new behaviour. Buying a tube is cheaper than a new amp or a repair.

Glad your amp is doing well.

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For a while, I used to keep tubes that had done something weird, suddenly developed noise out of nowhere, or were otherwise working fine and then suddenly acted suspect in a special box.

I’m not really sure what I was expecting they were going to do … and I got out of that habit. Now they go into a little historical tube display or the trash.

This particular 2A3 will be going on the lab supply, and then a tube tester, a bit later and we’ll see from there.

After that little episode this morning, I’ve been slowly working “up” through my collection of 300Bs, starting with the stock tubes the amp came with, then the ones I use when taking pictures of it and so on … and I found another iffy tube. And it’s definitely the tube, as the immense hum coming off it followed the tube across channels.

I guess some of the tubes that I thought had survived the move completely, actually picked up some damage along the way (the 2A3 didn’t have a ton of hours on it). Previously I thought it was a lone 13EM7 that had succumbed …

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I ran through a few NOS 2a3 a while back - a lot were way more noisy than I could reasonably expect to go away with burn it, and I did wonder if shipping damage did something to them. Most likely just the NOS market drying up leaving the also rans for tube options.

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