Body
Have anyone seen the youtube posters boasting about 1,700 dollars audiophile patch cables they claim that sound so great?I can't see needing them after spending all the money on the other fine components.
Does it have impedance variations? does it look sound? that's all one needs.Ferrites and shielded cables and gold are all one needs! silver for RF helps too.
If you wanna test a transformer run audio through it to speakers and listen to the crossover and un-linearness.
side note: Remember the Fogal transistor??? Claims of FTL and holographic sound images.Place a ceramic cap. across the junction and have many of same in parallel.
On Saturday, November 3, 2018, 7:55:51 PM CDT, Mick [email protected] [EVGRAY] <[email protected]> wrote:
Norm,
The interconnects used for home audio should be illegal for bad sound, but even a properly designed mic cable with an XLR on each end with a hot a cold and a shield one will notice only on female side the shield connects to the chassis of the connector. It is a single shield run on #1 to both sides though as the connections are designed balanced for just the reason you mentioned.
XLR's are the best connector for long run connections but I make my own cable with silver plated aircraft cable with teflon insulation, a pain to work with but sound is great.
For short single ended runs the RCA end sucks and it should have been BNC or the extra small microwave connectors that look like mini BNC's If one removes the RCA connectors and replaces with BNC and high quality aircraft cable and the rest of the gear is good enough one will notice the difference. Networking cable Cat 5 or 6 can also sound great as speaker cable.
The story gets worse though as the old tube guitar amp had a switch that would toggle chassis ground between either connector on the power connection for the purpose of preventing ground loops when some live show venue had the outlets wired with hot and neutral reversed. Well when that guitarist also happens to be a vocalist and touched a mic stand with the ground switched wrong it was not pretty if the shield was run to both chassis of the connectors. This was an old soundman trick to get back at the rude ego asshole guitar players using the special fully grounded mic cable. I am sure some people died from this prank where 220 was used.
On 11/3/2018 4:46 PM, Norman Wootan [email protected] [EVGRAY] wrote:
Mick! Just had to laugh at your remark about floating grounds in the recording studio! Ha! Ha! Way back when I was learning about fine audio, I ran a shielded line level audio cable to hook two sound systems together, about 100 ft run. When I turned on the systems and selected line in on the 2nd system, I had the prettiest motor boat you ever heard! Lol Yep! I had grounded both ends of a shielded cable and got a good example of a ground loop!
On 11/3/2018 4:54 PM, Mick [email protected] [EVGRAY] wrote:
Norm,
Thanks for that.
I love Mr Calrsons lab, I could happily live there for quite awhile with all that awesome vintage gear. I have seen isolation transformers wired like that and it's so insane but I am used to testing all the grounding points. When building a recording studio we have to float all the grounds so they are single point at the service panel and not looped anywhere else. Often they are lifted at the outlet j-box due to the lack of control in a prewired building. Ironically we also used to use autoformers for all of the light dimmers to prevent noise, so we often referred to the variacs as light dimmers.
I still don't completely trust a scope on an isolation transformer even if the ground is properly isolated/ lifted due to the somewhat rare magnetic emp events we are talking about like when I kicked off all my ground faults in the house through one.
On 11/3/2018 2:03 PM, Norman Wootan [email protected] [EVGRAY] wrote:
Mick! Here is a helpful video regarding scopes and isolation transformers on the test bench!
https://www.youtube.com/watch?v=XBsQ3sZ45Fk&feature=youtu.be
https://www.youtube.com/watch?v=xaELqAo4kkQ
On 11/3/2018 12:36 PM, Mick [email protected] [EVGRAY] wrote:
Norm,
Thanks for the nudge in the right direction. Now the process demands repeating with a totally isolated battery source configured the same way. Funny how I was concentrating on isolating and connecting saturated inductive charge without the first magnetic variable taken into account.
I have had no problem creating the event with my grid power source and even warned Sven that an isolation transformer will not always protect his scope when messing around with this energy. My scope probe sitting on a bench shot me in the leg when I walked by when performing the experiments from my bench supply. The bench supply has an isolation transformer of sorts. Being it is torroidal there is more inter-winding capacitive coupling and mutual inductance than with the proper EI transformer though there is at least the electrostatic shield and galvanic isolation.
Thanks for that reference. the Brit guy was funny, although I'm very familiar with iso transformers in audio work used for galvanic isolation and balancing to eliminate common mode noise.
On 11/3/2018 4:42 AM, Norman Wootan [email protected] [EVGRAY] wrote:
Mick! Your DUH reference is funny! To understand Isolation, best to study and understand the Isolation Transformer. The super high quality ones are built to eliminate noise and DC components that effect sensitive instruments like EEG and EKG instruments. This will give you an idea as to construction and purpose::
https://en.m.wikipedia.org/wiki/Isolation_transformer
A little tutorial as to how they work!
https://www.youtube.com/watch?v=sfzy5IQMzyc&feature=youtu.be
https://www.youtube.com/watch?v=14kPQif9P7c&feature=youtu.be
https://toroid.com/Products/Medical-Isolation-Transformers
The 230VAC, 5 HP locked rotor experiment was an example of electrically isolated electrical circuitry when mains contactor was opened since there was no neutral involve. There is magnetic and capacitive coup[ling only The dielectric insulation was not compromised therefore no electrical connection. The Chinese motor experiment was isolated, (electrically) when the reversing action was in transient. (Floating neutral) since there is a line neutral in the 120VAC input.
On 11/2/2018 2:44 PM, Mick [email protected] [EVGRAY] wrote:
Norm,
Since you have performed mass research on this event would you concur
with my long distance observation that the event is not only due to
charge isolation but inclusive of a magnetic connection from source in
addition to the saturated and lifted inductive load?
Your bell buzzer and bell transformer acting as an isolation transformer.
Both motor experiments, the small Emerson type and the HVAC unit with
only two hot's no neutral, must have been powered by an isolation
transformer of some type also such as the utility step down for the
neighborhood or dedicated delta or wye for commercial or even acted as
such from the dual windings of the HVAC motor.
Have you reliably produced the NS from any type of isolated battery
system, or in all such cases was there a magnetic connection to an earth
bonding in another spot?
My thoughts being one side of a transformer acting as a source is
grounded and the secondary side isolated so that the only conceivable
ground bonding on the sink might be considered as magnetic aside from
the bonded motor frame or what not producing the reconnection.
I may be pissing up a rope notwithstanding the NS seems to be predicated
on a B field connection somewhere in the source feed though the neutral
is isolated electrically.
Perhaps this is a simple "Duh" to you that you had already figured out
assuming everyone else at least this smart. Either way it does create
an interesting position in which to view 3 phase and transformers with
an extra resonant winding.
By the way, ironic your implication that the large medical isolation
transformers create a heretofore unknown vector of extreme danger.
Mick
#yiv7477081137 #yiv7477081137 -- #yiv7477081137ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv7477081137 #yiv7477081137ygrp-mkp hr {border:1px solid #d8d8d8;}#yiv7477081137 #yiv7477081137ygrp-mkp #yiv7477081137hd {color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;}#yiv7477081137 #yiv7477081137ygrp-mkp #yiv7477081137ads {margin-bottom:10px;}#yiv7477081137 #yiv7477081137ygrp-mkp .yiv7477081137ad {padding:0 0;}#yiv7477081137 #yiv7477081137ygrp-mkp .yiv7477081137ad p {margin:0;}#yiv7477081137 #yiv7477081137ygrp-mkp .yiv7477081137ad a {color:#0000ff;text-decoration:none;}#yiv7477081137 #yiv7477081137ygrp-sponsor #yiv7477081137ygrp-lc {font-family:Arial;}#yiv7477081137 #yiv7477081137ygrp-sponsor #yiv7477081137ygrp-lc #yiv7477081137hd {margin:10px 0px;font-weight:700;font-size:78%;line-height:122%;}#yiv7477081137 #yiv7477081137ygrp-sponsor #yiv7477081137ygrp-lc .yiv7477081137ad {margin-bottom:10px;padding:0 0;}#yiv7477081137 #yiv7477081137actions {font-family:Verdana;font-size:11px;padding:10px 0;}#yiv7477081137 #yiv7477081137activity {background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}#yiv7477081137 #yiv7477081137activity span {font-weight:700;}#yiv7477081137 #yiv7477081137activity span:first-child {text-transform:uppercase;}#yiv7477081137 #yiv7477081137activity span a {color:#5085b6;text-decoration:none;}#yiv7477081137 #yiv7477081137activity span span {color:#ff7900;}#yiv7477081137 #yiv7477081137activity span .yiv7477081137underline {text-decoration:underline;}#yiv7477081137 .yiv7477081137attach {clear:both;display:table;font-family:Arial;font-size:12px;padding:10px 0;width:400px;}#yiv7477081137 .yiv7477081137attach div a {text-decoration:none;}#yiv7477081137 .yiv7477081137attach img {border:none;padding-right:5px;}#yiv7477081137 .yiv7477081137attach label {display:block;margin-bottom:5px;}#yiv7477081137 .yiv7477081137attach label a {text-decoration:none;}#yiv7477081137 blockquote {margin:0 0 0 4px;}#yiv7477081137 .yiv7477081137bold {font-family:Arial;font-size:13px;font-weight:700;}#yiv7477081137 .yiv7477081137bold a {text-decoration:none;}#yiv7477081137 dd.yiv7477081137last p a {font-family:Verdana;font-weight:700;}#yiv7477081137 dd.yiv7477081137last p span {margin-right:10px;font-family:Verdana;font-weight:700;}#yiv7477081137 dd.yiv7477081137last p span.yiv7477081137yshortcuts {margin-right:0;}#yiv7477081137 div.yiv7477081137attach-table div div a {text-decoration:none;}#yiv7477081137 div.yiv7477081137attach-table {width:400px;}#yiv7477081137 div.yiv7477081137file-title a, #yiv7477081137 div.yiv7477081137file-title a:active, #yiv7477081137 div.yiv7477081137file-title a:hover, #yiv7477081137 div.yiv7477081137file-title a:visited {text-decoration:none;}#yiv7477081137 div.yiv7477081137photo-title a, #yiv7477081137 div.yiv7477081137photo-title a:active, #yiv7477081137 div.yiv7477081137photo-title a:hover, #yiv7477081137 div.yiv7477081137photo-title a:visited {text-decoration:none;}#yiv7477081137 div#yiv7477081137ygrp-mlmsg #yiv7477081137ygrp-msg p a span.yiv7477081137yshortcuts {font-family:Verdana;font-size:10px;font-weight:normal;}#yiv7477081137 .yiv7477081137green {color:#628c2a;}#yiv7477081137 .yiv7477081137MsoNormal {margin:0 0 0 0;}#yiv7477081137 o {font-size:0;}#yiv7477081137 #yiv7477081137photos div {float:left;width:72px;}#yiv7477081137 #yiv7477081137photos div div {border:1px solid #666666;min-height:62px;overflow:hidden;width:62px;}#yiv7477081137 #yiv7477081137photos div label {color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}#yiv7477081137 #yiv7477081137reco-category {font-size:77%;}#yiv7477081137 #yiv7477081137reco-desc {font-size:77%;}#yiv7477081137 .yiv7477081137replbq {margin:4px;}#yiv7477081137 #yiv7477081137ygrp-actbar div a:first-child {margin-right:2px;padding-right:5px;}#yiv7477081137 #yiv7477081137ygrp-mlmsg {font-size:13px;font-family:Arial, helvetica, clean, sans-serif;}#yiv7477081137 #yiv7477081137ygrp-mlmsg table {font-size:inherit;font:100%;}#yiv7477081137 #yiv7477081137ygrp-mlmsg select, #yiv7477081137 input, #yiv7477081137 textarea {font:99% Arial, Helvetica, clean, sans-serif;}#yiv7477081137 #yiv7477081137ygrp-mlmsg pre, #yiv7477081137 code {font:115% monospace;}#yiv7477081137 #yiv7477081137ygrp-mlmsg * {line-height:1.22em;}#yiv7477081137 #yiv7477081137ygrp-mlmsg #yiv7477081137logo {padding-bottom:10px;}#yiv7477081137 #yiv7477081137ygrp-msg p a {font-family:Verdana;}#yiv7477081137 #yiv7477081137ygrp-msg p#yiv7477081137attach-count span {color:#1E66AE;font-weight:700;}#yiv7477081137 #yiv7477081137ygrp-reco #yiv7477081137reco-head {color:#ff7900;font-weight:700;}#yiv7477081137 #yiv7477081137ygrp-reco {margin-bottom:20px;padding:0px;}#yiv7477081137 #yiv7477081137ygrp-sponsor #yiv7477081137ov li a {font-size:130%;text-decoration:none;}#yiv7477081137 #yiv7477081137ygrp-sponsor #yiv7477081137ov li {font-size:77%;list-style-type:square;padding:6px 0;}#yiv7477081137 #yiv7477081137ygrp-sponsor #yiv7477081137ov ul {margin:0;padding:0 0 0 8px;}#yiv7477081137 #yiv7477081137ygrp-text {font-family:Georgia;}#yiv7477081137 #yiv7477081137ygrp-text p {margin:0 0 1em 0;}#yiv7477081137 #yiv7477081137ygrp-text tt {font-size:120%;}#yiv7477081137 #yiv7477081137ygrp-vital ul li:last-child {border-right:none !important;}#yiv7477081137