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thom_at_galibier_design

Responses from thom_at_galibier_design

TriPlanar tonearm outward skating issue
Hi Raul,It would be an interesting experiment. You’d d also need to take bearing friction into account however. Without taking bearing friction into account, the experiment is flawed. An arm wire that attempts to influence tonearm motion could be ... 
TriPlanar tonearm outward skating issue
You said it better than I could have, Lou.  Personally, I think Herb's solution to the wire biasing problem is an elegant one.Thom @ Galibier Design 
TriPlanar tonearm outward skating issue
Raul,I think it's time for you to let this topic go, and to accept (as Ralph and I have written) that there is no perfect tonearm.  More importantly, the best tonearm for one person may not be suitable for another person.  We interact with machine... 
TriPlanar tonearm outward skating issue
Hi Raul,Like yourself, I’ve encountered products which make unforgivable design decisions but it’s UNFAIR to put the Tri-Planar into this category. I have yet to handle a tonearm which didn’t have at least one or two design quirks. There is no foo... 
TriPlanar tonearm outward skating issue
Nice photo Thom! A picture is worth a thousand words. Salectric - thanks, that’s certainly been my experience in supporting customers remotely. It has most definitely upped my photo editing game ;-) The time is overdue for me to up my video editin... 
TriPlanar tonearm outward skating issue
Staying out of this mud-wrestling match, but I want to point you to an annotated photo I made to work someone through a wire dressing problem with his Tri-Planar. The owner had purchased his tonearm used and the previous owner had obviously mishan... 
Will preamp manufacturers tell you if the model is phase inverse?
Hi @pops, don’t you mean the signal is inverting since your example cites one as non-inverting and two as interting? What am I missing? No, that example is non-inverting. All we're doing is adding the number of gain stages in the signal path. A no... 
Will preamp manufacturers tell you if the model is phase inverse?
Remember that you want to take the entire amplification chain into account. So (for example) if you have:Phono stage (non-inverting)Line stage (inverting)Amplifier (inverting)Then your signal path is non-inverting.  With multiple sources, you migh... 
To Float or not to Float...
Cleeds wrote:This is extremely dangerous - interconnects are not intended to carry safety grounds. Following this practice means that a component's chassis could be energized with lethal voltage. Safety grounds should be "earthed" only through... 
Sonic qualities of SET output tubes?
Hi Larry,I have always felt that really good amps, regardless of type, sound great at low volume levels and you really don’t have to crank up the volume to get the juices flowing. A good SET amp will be satisfying at a much lower volume level comp... 
Sonic qualities of SET output tubes?
Directly heated triodes are quite linear devices, and they tend to take on the characteristics of the driver circuit. The larger transmitting triodes (211, 845, GM70) are particularly difficult to drive, which is why you see some of the esoteric J... 
Considering switching from Audio Research to PrimaLuna, troube with VS115 amp
Hi Kevin (@upscaleaudio),John Atwood (One Electron, Artemis Labs, etc.) has a fairly concise commentary on some of the design considerations you mention (post #2 of this thread in DIYaudio: http://www.diyaudio.com/forums/tubes-valves/132233-fixed-... 
Considering switching from Audio Research to PrimaLuna, troube with VS115 amp
Thom_mackris : I like your thinking. What’s your take on Rogers then? Cathode bias, and I suspect they run the tubes hot. Yet they say this on their website. It’s all true, except I’ve not seen a cathode bias amp with "the longest tube life". : Au... 
Considering switching from Audio Research to PrimaLuna, troube with VS115 amp
Your points are well taken, Kevin and I see that we’re basically counting angels on the head of a pin. I agree with you about the arbitrariness of pricing in many instances, and would love to see Prima Luna whup some of the big names (withheld to ... 
Considering switching from Audio Research to PrimaLuna, troube with VS115 amp
Thanks for the write up btw. Appreciate your time. You’re welcome @aniwolfe I don’t think I need to address build quality. Or how they are built, or what "qualifies" as point to point. I don’t mean to be a stickler, but respectfully Kevin, I thin...