jea48

Responses from jea48

Directionality of wire
Cable Break-in There are many factors that make cable break-in necessary and many reasons why the results vary. If you measure a new cable with a voltmeter you will see a standing voltage because good dielectrics make poor conductors. They h... 
Directionality of wire
Something that has not been mentioned, I do not believe, is the dielectric insulator used to cover the IC and speaker cable wires. The type of insulation covering over the wire may influence cable direction. Especially if the cables were broken-in... 
Directionality of wire
nonoise          2,643 posts                                               08-16-2017 12:34pm@jea48 Thanks for posting that. Stupidly, I’ve always tried to type the quote after clicking on the "quote" icon and it only worked a few times. I could ... 
Directionality of wire
Guys,It is next to impossible to follow your posts trying to figure out who said what in your posts.Quote See the little light grey box with 2 little black closed hooks just above the message box far left side?Enter in the message box where you wa... 
Preamp 6922 tube help
tomcy6,Thank you.You are correct. I guess I just didn’t check out the pictures close enough. Taking another look sure enough I clearly can see the shiny metal plate and the aluminum tag with the stamped date codes. In my rush I guess I was trying ... 
Preamp 6922 tube help
Another great sounding Siemens tube is the early/mid 1960s 7308/E188CC all grey plate tube. Some were sold here in the states under the RCA label 7308/E188CC.Not this tube though.http://www.thetubestore.com/Tubes/6000-to-9999-Types/SIEMENS-E188CC-... 
Preamp 6922 tube help
Early to middle 1960s Amperex 6922 PQ white label USA made. Also the 7308 PQ white label USA made from the same years. Joe’s Tube Lore https://www.audioasylum.com/scripts/d.pl?audio/faq/joes-tubes.html#6DJ8Brent Jesseehttp://www.audiotubes.com/au... 
I know my tubes (VT100 mkII) are going when...
Mark, Note the tubes in the LS25 are only good for around 4000 hours. I wonder what the average life expectancy hours are for the 6922 tubes in the VT 100 MK2?   
I know my tubes (VT100 mkII) are going when...
3.  Do I need to adjust bias in the LS25 as well? No.LS25http://www.audioresearch.com/ContentsFiles/LS25LS25II_Manual.pdfhttp://www.audioresearch.com/en-us/download 
I know my tubes (VT100 mkII) are going when...
If I want to practice the connections with the two multimeters and agitator clips in a dry run with no power in the amp, how do I ensure that there is no energy in the amplifier?  Should I have music playing and then turn off the power amp so ... 
I know my tubes (VT100 mkII) are going when...
Mark,I would plug the VT100 amp directly into the wall outlet, jmo..... I do not have any experience or knowledge with regards to the use of KT120 power tubes in the VT100 MK2.You might want to contact ARC service at the factory in Minnesota.I fou... 
I know my tubes (VT100 mkII) are going when...
Power tubes are usually good on average for 1500 to 2000 hrs.Life of small 6922 signal tubes can vary but can last as many as 10,000 hours. Though not that high on new production tubes made today.Replacing the power tubes is fairly simple. Just fo... 
Directionality of wire
herman                                                      1,946 posts08-06-2017 12:42pm about thisThe speaker transducer moves forward and backward according to EMF acting on the voice coil - see Faraday’s law and Maxwells equations - so both... 
Directionality of wire
@geofkkait,Quote from Ralph Morrison The laws I want to talk about are the basic laws of electricity. I'm notreferring to circuit theory laws as described by Kirchhoff or Ohm but thelaws governing the electric and magnetic fields. These fields are... 
Directionality of wire
herman,Thank you for the response. shadorne5,793 posts08-01-2017 1:22pm@jea48 The speaker transducer moves forward and backward according to EMF acting on the voice coil - see Faraday’s law and Maxwells equations - so both +ve and -ve current d...