One of the most common, and interesting failure modes of 6L6 tubes in audio amplifier applications is as follows:
What happens is the tube becomes noisy and creates a rattling sound in the speaker. I've seen this happen many times was 6L6 tubes in guitar amplifiers and can only conclude that it is due to the elements rattling inside the envelope. Presumably this is mostly caused by a loose grid. I've seen it countless times. Guitar player comes in and complains that his amplifier is making a rattling sound and you tap on one of the 6L6 tubes and immediately hear the rattling noise. Replace the tubes and the problem is solved. Best regards - Brian Carling AF4K Crystals Co. 117 Sterling Pine St. Sanford, FL 32773 Tel: +USA 321-262-5471 > On Dec 5, 2014, at 3:56 AM, [email protected] [FLBOATANCHORS] > <[email protected]> wrote: > > > Does that mean that a tube made by RCA or GE would not sound as good? > > Gene, WØQFC > > > -----Original Message----- > From: '[email protected]' [email protected] [FLBOATANCHORS] > Sent: Thursday, December 4, 2014 6:44 PM > To: BOATANCHORS ; Florida boatanchors ; Amateur Repairs > Subject: [FLBOATANCHORS] MCM 6L6GC Tubes for $15.99 > > It's a flashback in time - a sale on a new tube. > > http://www.mcmelectronics.com/product/555-27235 > > "Fascinating." Mr. Spock > > > -- > > *David* > ~KD4E~ > Nevils, Georgia USA > > Safe & Secure Search Engine: duckduckgo.com > > Android for Hams: groups.yahoo.com/group/hamdroid > Creative Tech: groups.yahoo.com/group/ham-macguyver > Raspi Alternative: groups.yahoo.com/group/beagleboneblack/ > > Restored to design-spec at Heaven's gate 1Cor15:22 > > > ------------------------------------ > Posted by: "[email protected]" <[email protected]> > ------------------------------------ > > TELL YOUR HAM FRIENDS ABOUT FL BA. > > Post a message: [email protected] > Subscribe: [email protected] > Unsubscribe: [email protected] > List owner: [email protected] > > http://groups.yahoo.com/group/FLBOATANCHORS > > ------------------------------------ > > Yahoo Groups Links > > > > > > ------------------------------------ > Posted by: <[email protected]> > ------------------------------------ > > TELL YOUR HAM FRIENDS ABOUT FL BA. > > Post a message: [email protected] > Subscribe: [email protected] > Unsubscribe: [email protected] > List owner: [email protected] > > http://groups.yahoo.com/group/FLBOATANCHORS > > ------------------------------------ > > Yahoo Groups Links > > <*> To visit your group on the web, go to: > http://groups.yahoo.com/group/FLBOATANCHORS/ > > <*> Your email settings: > Individual Email | Traditional > > <*> To change settings online go to: > http://groups.yahoo.com/group/FLBOATANCHORS/join > (Yahoo! ID required) > > <*> To change settings via email: > [email protected] > [email protected] > > <*> To unsubscribe from this group, send an email to: > [email protected] > > <*> Your use of Yahoo Groups is subject to: > https://info.yahoo.com/legal/us/yahoo/utos/terms/ > _______________________________________________ Boatanchors mailing list [email protected] https://puck.nether.net/mailman/listinfo/boatanchors
