lewm

Responses from lewm

More on the Onzow Zerodust
richmon, The particles of dust or debris attracted by the MC magnet structure would have to be ferrous, I think we would agree.  So where is ferrous material going to come from in the typical listening environment?  Also, any such dust would stick... 
Problem with one channel going out.....
Tube sockets can always go bad, and for a wide variety of reasons and due to many different causes. But in this case I am trying to understand how dirt could get into the socket that is already hosting a tube. Also, I think the OP mentioned he had... 
I need help regarding tube phono preamplifiers
Raul’s point about the C48 is well taken.  
I need help regarding tube phono preamplifiers
Seems like the OP did a bit of shopping before compiling his list of 3.  Evidently the Herron did not make the cut, possibly because it is out of production, or possibly for other good reasons.  But let's not get crazy about the Herron; it most ce... 
Problem with one channel going out.....
Ditto.  But I am too lazy to do what I should do on that score.  I spent more than a year trying to detect the source and fix an oscillation in one of my amplifiers.  At the start, I had no idea how long and arduous would be the process.  After 6 ... 
Problem with one channel going out.....
How do you replace the Chinook with a transformer?  
Problem with one channel going out.....
Can you re-hash your own trouble-shooting experiments, and the results in the simplest terms, minus the digressions?  Like, "swapped phono cables; this made no difference".  It doesn't help to know why you changed tubes, for example. The fact tha... 
I need help regarding tube phono preamplifiers
The OP asks for a comparison among 3 choices of phono and got almost nothing but suggestions that he consider a 4th, and there’s virtually no consistency regarding a putative 4th alternative. I’ve owned the Rhea which I converted to Signature stat... 
MM vs MC Cartridges
Baylinor, you may be brilliant in your chosen field, but with all due respect, in audio you don’t know what you don’t know. You’ll get an education here.  
Decided to try a SPU cartridge
I don't think HTA = zenith.  The term HTA is relatively unfamiliar to me but as defined here it is the same as "Tracking Angle Error", the angle by which the cantilever deviates from tangency to the groove, TAE is the term I usually use.  TAE or H... 
Help.... I'm scared to 'upgrade'!
Now you guys mention it, and in the absence of rock solid evidence to the contrary, it may well be the case that the complaints about noise (hiss, as I recall, not hum) pertain to the JC3, and yes I do recall that the 3+ exists in part to reduce t... 
Does anyone know where I can get transistors for a 30 yr old Spectral amp DMA200?
You or your friend might first investigate the possibilities offered here, and then come back if the parts cannot be found.  Someone like Nelson Pass or Bill Thalmann may also be able to advise about a modern part that is interchangeable with the ... 
Is the DAC the digital equivalent of a cartridge.
mahgister, That's an interesting thought if the question was not what the question is.  For the question that is, the thought is irrelevant.  
Does anyone know where I can get transistors for a 30 yr old Spectral amp DMA200?
First, google those part numbers. You might find the parts right away. Then check Jameson Electronics on the West coast. Then ask the Spectral designer if he’s still alive or anyone associated with the company. Then ask Nelson Pass. I hope you’ve ... 
Is the DAC the digital equivalent of a cartridge.
This thread is based on a “straw man” proposition, and therefore is of value to those who like a good pointless argument. Period. Not that there’s anything wrong with that.