John Curl's Blowtorch preamplifier part II

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You do not go far enough. Engineers should spend 3 or 4 years in the production department, learning how to actually build what they design, and learning how to explain to the production workers how to build their product.

When I detail how I want something built, my best techs typically say "would you please demonstrate it for us". While sometimes a PITA, it is always good for keeping me based in reality.

jn

I agree 100% it makes for better product that is easier to build and service.
 
I agree 100% it makes for better product that is easier to build and service.
Well, easier to build at least.

Working the production line doesn't mean you learn how to service the product, unfortunately.

Wasn't it Toyota where the design engineers were required to own their design cars with the added caveat that they also had to perform their own servicing? I know if it were me in that position, I'd put the D##M oil filter in a place I could actually get to.

jn
 
The Doctor ...
 

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i know that's right!
our production folks love it when we (the engineers) have to help on the production line.
the reason is they KNOW that all that stuff they gripe about that we hoist on them will SOON be fixed.
:D
Actually, i find it's also a refreshing break from paperwork ...

mlloyd1

I agree 100% it makes for better product that is easier to build and service.
 
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Joined 2002
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Well, easier to build at least.

Working the production line doesn't mean you learn how to service the product, unfortunately.

True

Wasn't it Toyota where the design engineers were required to own their design cars with the added caveat that they also had to perform their own servicing? I know if it were me in that position, I'd put the D##M oil filter in a place I could actually get to.

jn

My Toyota FJ has the filter right up front with a drip catcher and drain. 95K miles it required a battery and front pads. I have yet to find the oil drain plug on my E350 MB it is quieter though.
 
Technology .....
The distinctive, sculptured heatsink itself starts life as a single billet of solid aluminium. It is then machined to achieve the general curve profile before the fins are cut by a five-axis CNC machine, which is continually doused with coolant over the course of several hours.
For $200,000, I take it that it has lifetime warranty, with manufacturer paid freight.
The CNC milled casing/heatsinking extravagance makes the Blowtorch milled case look distinctly pedestrian.
Those who criticised the CTC BT case should go eat their own words.

Dan.
 
I would like to say something about Dr. Vandenhul, as I have known him better and longer than I have known SY, and I think that VDH is getting a bad rap. I have known and talked technical with VDH since the early 80's, and I even spent a day or two at my office with him discussing both cartridges and wires. I found him, like me, very enthusiastic about differences in audio parts, and he has put his money where his interests are, just like me, over the years. I have one representative sample of a coax cable from him, and it is one of my STANDARDS which almost all other coax cables cannot measure as good as. It is not my only 'standard' but it is a very good one. Over the decades, when I could find him at CES, he would take time out to talk about wire, etc. at great length, because he is honestly interested in the subject, like I am. I have never found him incorrect or trying to sell me something.
Now what about his excursions into 'health' products? Well, he is not alone in this, and let's hope that he has found something interesting and useful. However, I can understand why most of us would not necessarily buy some 'new age' product, (although I might, if I thought it could help some medical condition that I might have), but do we have to condemn a long term researcher on audio problems, a man who did get a PhD in physics, (not chemistry), and has done formal physics research earlier in his career? In truth, he just does not care about protecting his 'image' just like me, as he has all the public exposure that he can ever use, and he (like me) is not easily frightened off by scathing criticism, usually given by people who start with their beliefs, and seldom with critical measurements, in condemning interesting audio 'improvements'.
Today, we work in a world of physics where the almost impossible seems possible, and we find it fun and personally useful to work there. My advice is to leave VDH alone, if you do not want what he has to offer. I would hope that I too would be ignored, rather than criticized, for my efforts now, and in the future.
 
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