I have a conrad johnson MV50. It's 45 watts of classic tube amplifier, about 10 years old. Though I love this amp, it eats tubes with gusto. I've been feeding it Penta tubes,(= relabeled Teslovaks?) at the rate of one every two months or so. Usage of the amp is about 5 hours per day. And I've called conrad johnson twice in 3 years asking if something is wrong with my amp. They tell me with 99% certainty that it's a tube problem. Of course they want me to buy their hand tested Sovtek EL34s at $30 bucks a pop. Instead I bought fresh Svetlanas at $15 bucks apiece mail order, & popped em into their sockets. Within 5 minutes, I hear a loud crack and see bright light flashing inside a fresh tube. Am I just having bad luck, or do I need to consult an amp doctor? Please, somebody clue me in and help me solve this problem. Meanwhile ... living without music.
This post is made possible by the generous support of people like you and our sponsors:
Topic - Help! My amp eats tubes! - vacuous 03:08:22 05/24/00 (26)
- My Conrad Johnson MV 50 eats tubes just like yours - phenderson 11:45:34 05/24/00 (7)
- Gonna trust judgement of Audio Professionals - vacuous 17:14:04 05/24/00 (2)
- Re: Gonna trust judgement of Audio Professionals - phenderson 18:05:37 05/24/00 (1)
- PS - CJ sounds like they might be slacking a bit ... - phenderson 18:11:50 05/24/00 (0)
- Re: What is this supposed to mean???? - Scott T. 12:52:45 05/24/00 (3)
- Re: What is this supposed to mean???? - B. P. Firlotte 14:35:46 05/24/00 (0)
- It means that people who grew up with tubes usually know at least a bit about them. - phenderson 13:25:30 05/24/00 (1)
- I really didn't mean to (ahem) stereotype anyone - phenderson 17:22:08 05/24/00 (0)
- Re: I've never had this problem..... - Scott T. 09:06:43 05/24/00 (2)
- I also want to point out that...... - Scott T. 09:22:58 05/24/00 (1)
- Upgrade to MV-52? Good idea! - vacuous 17:35:42 05/24/00 (0)
- Re: Help! My amp eats tubes! - russellc 06:37:56 05/24/00 (0)
- Re: Help! My amp eats tubes! - Steven R. Rochlin 05:42:03 05/24/00 (0)
- Re: Help! My amp eats tubes! - Paul Tobin 05:03:54 05/24/00 (0)
- Re: Help! My amp eats tubes! - Myles B. Astor 04:30:22 05/24/00 (0)
- Call me crazy, but if.... - Trevor Wilson 03:25:28 05/24/00 (0)
- Is your bias properly set? The calibration may be off. - Duke 03:21:56 05/24/00 (3)
- $30 Sovteks please - vacuous 04:05:46 05/24/00 (1)
- Re: $30 Sovteks please - Russellc 06:42:16 05/24/00 (0)
- Re: Is your bias properly set? The calibration may be off. - Marc Bratton 03:29:07 05/24/00 (0)
- Help! My amp eats tubes. - Marc Bratton 03:19:13 05/24/00 (5)
- Anybody in SF repair amps? - vacuous 04:26:58 05/24/00 (4)
- Re: Anybody in SF repair amps? - john curl 11:55:25 05/25/00 (1)
- thx for details (nt) - vacuous 12:19:32 05/25/00 (0)
- Re: Anybody in SF repair amps? - John E 05:26:44 05/24/00 (0)
- Re: Anybody in SF repair amps? - Marc Bratton 05:01:54 05/24/00 (0)