fascinating... thanks matt!
-pete On May 20, 2011, at 10:28 AM, Matt Syson wrote: > Hi > This fairly common 'gating' effect is usually caused by dirt on a connector, > switch or pot. An oxide film is created by chemical reaction of dirt and > contaminants in the air which create an insulation layer often a few atoms > thick. Putting a higher signal level through 'punches' a path through this > insulator (an absolutely miniscule spark) and for a while it will work > 'normally' (usually with increased distortion). Then you switch off and > leave it for a day or so and the contamination starts its work again. > Dust, moisture in the air, smoke, all contribute to this. > Matt S > > On 20/05/2011 14:27, pete wrote: >> bros - >> >> continuing the surely long and possibly never ending list of questions on >> my series IIIc restoration project... >> >> i am seeing the following behavior on the input modules (as well as the cue >> modules)... >> i'm feeding the line in with the multitrack output, and as i bring up the >> fader (and the input gain) i get weak, fuzzy signal... until i jam the gain >> way up there (very quickly) and the channel then "comes alive" so to speak. >> i can then bring it back down to a sensible level and all is OK. >> >> what problem is this behavior indicative of? bad connection to the >> motherboard? or a component problem in the line in circuit? at the >> electrical level, how is a dodgy connection "made OK" (in a sense) by >> pumping a greater voltage through it? >> >> >> thanks all - >> >> pete------ >> >> View the list online at: http://www.mail-archive.com/[email protected] >> >> You can unsubscribe at anytime by sending an email to >> mailto:[email protected] with "unsubscribe neotek" in the message >> body. If you have any difficulties, or questions --please send an email to >> mailto:[email protected]. >> >> The Neotek list is lovingly hosted by Catapult Web. Remember that any >> message or reply sent to the list will be automatically forwarded to all >> subscribers. >> >> Vive Le Neotek! >> >> Thanks. >> > ------ > > View the list online at: http://www.mail-archive.com/[email protected] > > You can unsubscribe at anytime by sending an email to > mailto:[email protected] with "unsubscribe neotek" in the message body. > If you have any difficulties, or questions --please send an email to > mailto:[email protected]. > > The Neotek list is lovingly hosted by Catapult Web. Remember that any message > or reply sent to the list will be automatically forwarded to all subscribers. > > Vive Le Neotek! > > Thanks. > ------ View the list online at: http://www.mail-archive.com/[email protected] You can unsubscribe at anytime by sending an email to mailto:[email protected] with "unsubscribe neotek" in the message body. If you have any difficulties, or questions --please send an email to mailto:[email protected]. The Neotek list is lovingly hosted by Catapult Web. Remember that any message or reply sent to the list will be automatically forwarded to all subscribers. Vive Le Neotek! Thanks.
