http://launch.groups.yahoo.com/group/vacuumtubes/ This list is dedicated to vacuum tube fans around the world. It is a place to exchange information about vacuum tubes and their Sat, 08 Mar 2008 04:54:27 GMT Jürgen Ewert http://launch.groups.yahoo.com/group/vacuumtubes/message/585 http://launch.groups.yahoo.com/group/vacuumtubes/message/585 Please check my Linked-In profile and join my vacuum tubes group http://www.linkedin.com/in/ircaudio Wed, 04 Jan 2006 15:21:28 GMT http://launch.groups.yahoo.com/group/vacuumtubes/message/584 http://launch.groups.yahoo.com/group/vacuumtubes/message/584 Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the vacuumtubes group. File : /6SL7.zip Sun, 05 Dec 2004 22:45:14 GMT George Souris http://launch.groups.yahoo.com/group/vacuumtubes/message/583 http://launch.groups.yahoo.com/group/vacuumtubes/message/583 Hi everybody !! I would appreciate it, if somebody can tell me how much power can i get from four tubes 807 in push-pull (output stage of an am Sun, 26 Sep 2004 01:35:41 GMT Glen Clover http://launch.groups.yahoo.com/group/vacuumtubes/message/582 http://launch.groups.yahoo.com/group/vacuumtubes/message/582 George, I found a reference to a military-grade unit made in Canada by VRL inc. Is your unit called a "Reception Set Canadian VRL" on a metal equipment tag on Wed, 12 May 2004 11:50:36 GMT KeithW http://launch.groups.yahoo.com/group/vacuumtubes/message/581 http://launch.groups.yahoo.com/group/vacuumtubes/message/581 Dear Groups, I've tried an experiment with my SoundBlaster SB live 5.1 soundcard. I used Sony Soundforge v7.0.0.262 and set it to record at 24b/96khz and to my Tue, 11 May 2004 17:23:59 GMT geosouris http://launch.groups.yahoo.com/group/vacuumtubes/message/580 http://launch.groups.yahoo.com/group/vacuumtubes/message/580 Hi to everybody!!! i have two separate units from an old receiver(the main receiver and the power supply) The characteristic words of the trademark are V.R.L Wed, 07 Apr 2004 03:28:31 GMT Robert G Smith http://launch.groups.yahoo.com/group/vacuumtubes/message/579 http://launch.groups.yahoo.com/group/vacuumtubes/message/579 I have looked on Ebay to get some idea what my tubes are worth. This has been little help however because I can't find matches. Many of my really odd shaped Wed, 07 Apr 2004 01:04:18 GMT Robert G Smith http://launch.groups.yahoo.com/group/vacuumtubes/message/578 http://launch.groups.yahoo.com/group/vacuumtubes/message/578 You know on a lighter note. I am 50 years old and I have a 38 year old brother ( one of three all younger than me ) that until a year ago did not know what a Tue, 06 Apr 2004 20:14:04 GMT hvxray http://launch.groups.yahoo.com/group/vacuumtubes/message/577 http://launch.groups.yahoo.com/group/vacuumtubes/message/577 Hi, on your tubes, consider that tube-type TVs haven't been manufactured in so long, there isn't a lot of demand for HV rectifiers (1B3, 3A3, etc) or HV Tue, 06 Apr 2004 12:55:25 GMT Robert G Smith http://launch.groups.yahoo.com/group/vacuumtubes/message/576 http://launch.groups.yahoo.com/group/vacuumtubes/message/576 Hi all. I have a couple hundred vacuum tubes that all worked when they were collected many years ago. I know I have to retest them and some are really weird Tue, 04 Nov 2003 18:04:13 GMT othello159 http://launch.groups.yahoo.com/group/vacuumtubes/message/575 http://launch.groups.yahoo.com/group/vacuumtubes/message/575 ... Through a process of elimination I can pinpoint the noise source to the phonograph. If I disconnect the turntable and short the amplifier input it becomes Tue, 04 Nov 2003 09:37:55 GMT optom@... http://launch.groups.yahoo.com/group/vacuumtubes/message/574 http://launch.groups.yahoo.com/group/vacuumtubes/message/574 ... "Hum" is 60 Hz line voltage frequency entering the signal pathway from various possible sources(here are four) : 1) Lack of grounding of phonograph, tuner, Tue, 04 Nov 2003 07:17:14 GMT othello159 http://launch.groups.yahoo.com/group/vacuumtubes/message/573 http://launch.groups.yahoo.com/group/vacuumtubes/message/573 Well, how to get rid of it is one thing, but also how to measure it in the first place to have a quantitative means of comparing one situation with another. My Wed, 10 Sep 2003 21:28:07 GMT Marc L. http://launch.groups.yahoo.com/group/vacuumtubes/message/572 http://launch.groups.yahoo.com/group/vacuumtubes/message/572 Thank you all! That is the information I was looking for. You have all been a great help to me. Kind regards, Marc L. ... __________________________________ Wed, 10 Sep 2003 13:11:45 GMT Jeff Lange http://launch.groups.yahoo.com/group/vacuumtubes/message/571 http://launch.groups.yahoo.com/group/vacuumtubes/message/571 Marc: Forget about brand name and look for a precision 1% metal film resistor usually (as Harvey indicates) 1 to 3 watts. Larger will not hurt but avoid