As something like a perfect test does not exist results will always be questionable.
It starts with the level of significance required.
And normal scientific practice would require sucessful replication of the experiment by other groups, which is of course a bit more difficult compared to other fields as we need a human detector.
Charles introduced me Myrtle wood blocks years ago.......was I skeptical at first, yes, but he was correct. Wood has been used for ages in vibration control, I recall a factory that used huge blocks of Balsa wood under heavy machines to reduce vibration and they had found that it worked better than any other damping material (according to traditional engineering standards) they had tried.
The point being, that does wood work better all the time? The answer is no but for me it does most of the time.
I have never know Charles to make a statement without some level of experimentation first which is more than I can say for some here.
If he can't explain some of his observations is he wrong? No there are many things happening in nature that can't............yet.
Don't be so quick to rush to judgement......you will be missing a whole lot of useful information.
Jam
The point being, that does wood work better all the time? The answer is no but for me it does most of the time.
I have never know Charles to make a statement without some level of experimentation first which is more than I can say for some here.
If he can't explain some of his observations is he wrong? No there are many things happening in nature that can't............yet.
Don't be so quick to rush to judgement......you will be missing a whole lot of useful information.
Jam
Between components, like between preamplifier and power amplifier.
I'm sorry, I think this is profoundly wrong. Replicability is true for a limited number of things, but there are many things for which it's not.
No. I mean wood bricks between 2 instruments. Once I had a customer who complained for slight hum in speakers. The reason was large power transformer's magnetic field that induced hum voltage in the preamp circuits. The whole issue was solved by putting preamplifier 10cm above power amplifier, rather than directly on its top. Just a place for a couple of nice wood bricks 
Last edited:
There's no guaranteed results.
As with any endeavor, there are easy things and harder things. Novice skiers can't go down the black trails. If that's what they want to do, they can work on gaining enough proficiency to tackle that challenge.
Speculating about the wood blocks. Many materials used for flooring can build up a static charge. Wood has good damping,but is also an insulator, perhaps separating the jacket of the cable from a static charge on the floor think carpet in winter for an extreme example is making a difference?
No. I mean wood bricks between 2 instruments. Once I had a customer who complained for slight hum in speakers. The reason was large power transformer's magnetic field that induced hum voltage in the preamp circuits. The whole issue was solved by putting preamplifier 10cm above power amplifier, rather than directly on its top. Just a place for a couple of nice wood bricks
In this case it was not the wood that was relevant , but the distance created. The trafo should of been shielded , an obvious oversight.
In many so called "pro" amps , just a bare trafo. In the new Krells (below) , parasound , even my mid-fi Nikko - a steel circular "vessel" for the toriod.
OS
Attachments
Ok, but what difference exactly?
Follow it through. What would the effect be that would get past the main power supply, any voltage regulators, and the circuit's own power supply rejection?
Keeping in mind that in most power supplies, the power cord's not even in the circuit the majority of the time.
se
I have absolutely no idea what you just said here.
And what's the point of speculating if you don't follow it through?
se
Well Scott, that is the difference between you and Charles. Charles works into the night to get HIS listening set-up as perfect as possible. You, on the other hand, would just get it working. After all, a CES show is not the best place for excellent hi fi reproduction, and the AC is full of RFI. Of course, it also shows what we can do to reduce RFI and AC contamination with our Bybee devices, 10uf caps across the power line, and active AC line cleanup.
Lets talk about the "Magnetic Field" amplifier. He placed a light dimmer in front of the power transformer set to trigger at the peak of the AC cycle. That effectively put 120 hz into the transformer instead of 60. Allowed for reducing the core size by half. Of course it wrecked havoc on everybody elses' power line. Actually got legislation passed in many places prohibiting the technique. Of course when the dimmer went out of spec there were a few fires.
How about "Sonic Holography?"
The guy used to come to town because his wife was from here. Met him, I can understand Nelson's theory of the amplifier test. An hour was my limit for this noteworthy designer. Clever circuits yes, good circuits no.
Last edited:
Just for the circuit complainers here! DUAL DIFFERENTIALFET INPUT LINE LEVEL AMPLIFIER! JC-2 | eBay
- Status
- Not open for further replies.