Re: NEOTEK: Elan m2 problem

[Ike Zimbel]

Let's be clear about terminology here. I am often trying to determine whether or not someone heard a "buzz" or a "hum". I define buzz as more of an HF noise, of no particular frequency. Hum is, in my book, AC line frequency (50/60hz depending what part of the world you are plugged in) and its harmonics: 100/120hz, 150/180hz, 200/240hz, 250/300hz etc. The two sounds tell a very different story as do the different frequencies of hum. best, ike Donald Put wrote: Ike gave you some great advice, so follow what he said and let us know what you find. The "bzzzz" sound suggests an intermittent connection to me, which means a connection is oxidized, a terminal is loose, a bad solder joint, etc.  The "bzzz" can actually be some electrical arcing (or micro arcing).  Sometimes these arcs create a temporary "weld" between the two halves of the connection, but these bridges have more resistance than a regular clean connection and usually fail quickly due to heat build up and thermal cycling.  Once they break apart, the process starts over again but the base metal is weakened so the "weld" doesn't last as long. Cheers, -- Don -- Ike Zimbel Zimbel Audio Productions Ltd. Toronto 416-720-0887 "Studio House Calls" - Repairs and upgrades to analog audio equipment including: Amek, Allen & Heath, Neve, Neotek, MCI, Soundcraft and more. ------ You can unsubscribe at anytime by sending an email to mailto:imail...@analogbros.com with "unsubscribe neotek" in the message body. If you have any difficulties, or questions --please send an email to l...@analogbros.com. The Neotek list is lovingly hosted by Catapult Web Development. Remember that any message or reply sent to the list will be automatically forwarded to all subscribers. Vive Le Neotek ! Thanks.