My latest adventure with these amps had one OT blowing its internal fuselinks.

My cockapooch and I were listening to music when WHAM!, something popped VERY loudly in the right channel and flashed brightly in the RH half of the right-channel amp. Of course we both jumped and she approached the amp, sniffing, but I called her back. The music continued playing and sounded fine, but I turned off that amp and visually checked the fuselinks in the 4 right-hand OTs. Found both fuselinks disappeared in one tube (see link below), replaced the tube with a spare, turned the amp on, rebalanced that amp after it warmed (and again hours later), and all is GOOD. In many output-transformered amps, that tube blowing would have taken with it a large resistor on the board and junked a $50 - $100 tube; my spare OTs cost about $9 each, delivered, IIRC.

I've been merely listening to these amps and my system for a couple months; this summer, in spite of the desert heat in Phoenix, seems to be my season for buying, selling, and shooting pistols, punching paper and blowing up pesky waterjugs. :-)

The system sounds EXCELLENT, and I'm VERY happy I have these amps.

TYVM, Ralph!

http://www.atma-sphere.com/Resources/6AS7G_Visual_Inspection (Open in New Window)

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - My experiences with new M-60 Mk.3.3s, good and not-so-good - jeffreybehr 14:28:07 04/23/16 (11)

RE: My experiences with new M-60 Mk.3.3s, good and not-so-good - ozzyboy 12:07:04 03/16/17 (0)

Winter-'17 bump. Got the new front-wall dampers installed... - jeffreybehr 14:53:40 02/27/17 (0)

My latest adventure with these amps had one OT blowing its internal fuselinks. - jeffreybehr 17:34:29 07/07/16 (0)

The system sounds better all the time. - jeffreybehr 01:03:43 05/13/16 (0)

Got one more amp finished to an initial degree. - jeffreybehr 22:24:58 04/26/16 (2)

RE: Got one more amp finished to an initial degree. - kbsp 08:48:51 07/08/16 (0)

RE: Got one more amp finished to an initial degree. - Leadfoot 18:51:10 04/27/16 (0)

RE: My experiences with new M-60 Mk.3.3s, good and not-so-good - Lew 10:04:10 04/25/16 (2)

Lew, of course the amps came with feet; I removed them. :-) - jeffreybehr 18:43:40 04/25/16 (1)

My mistake... - Lew 21:51:59 04/25/16 (0)

RE: My experiences with new M-60 Mk.3.3s, good and not-so-good - Cousin Billy 08:02:11 04/25/16 (0)

Follow Ups

My latest adventure with these amps had one OT blowing its internal fuselinks. - jeffreybehr 17:34:29 07/07/16 (0)

My latest adventure with these amps had one OT blowing its internal fuselinks.

Post a Message!