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Melos tube rolling thread - Page 4

post #46 of 137
3/21/02 at 6:36pm
MirandaX, I want to get my hands on a set of the Cardas cables for my HD600's.....listen for a while, and then I'll post some thoughts on these amps.


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post #47 of 137
3/21/02 at 6:46pm
Sounds great! Looking forward to it.
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post #48 of 137
3/21/02 at 6:58pm
Hi Rick,
Wow, indeed if the JJs are that much better than the Russian mil 6922s. Can you elaborate on differences you are hearing? The Russian mil are very fine performing tubes, but a hair on the dull side, although slow and steady usually wins the race. I suspect the JJs have more "zip" up top, yes? They are also a currently still-in-production tube so that gives me hope about getting good tubes in the future. Very encouraging.

We might have to dispatch an ambulance to Rick's place if he got his ears on some 60's Siemens gold pins!

markl
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post #49 of 137
3/21/02 at 7:11pm
Quote:
Originally posted by markl
We might have to dispatch an ambulance to Rick's place if he got his ears on some 60's Siemens gold pins!

markl
LOL, Mark....I'd love to hear the Siemens! The JJ's just seem to open the sound up....a little brighter in the mids through top end. To me , at least, the bass sounds about the same.
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post #50 of 137
3/21/02 at 10:00pm
Thread Starter 
Quote:
Originally posted by Jon Beilin
Tubes are capacitors. I learned that the hard way. Make sure you give the old tubes time to discharge!
That's a shocking revelation!
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post #51 of 137
3/22/02 at 2:41am
About the comment I made about trying to not get oil on the tubes: It's just a superstitious, overprotective, probably unneccesary practice I have that stems from something a mechanic told me about changing headlights in your car.
The oil creates a temperature difference on the surface of the glass and shortens the life of the headlight.

It probably has no relation to tubes but I'm extra careful when it comes to expensive NOS tubes and my beloved Melos. It definitely can't hurt.
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post #52 of 137
3/22/02 at 2:57am
fortune,

i've heard the same thing from a couple of car-guys (also that it makes it more prone to break?)

i do it as well, as the kind people at sonic frontiers were nice enough to include white gloves when i purchased my preamp. fancy.

best,
carlo.
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post #53 of 137
4/19/02 at 10:41pm
Ok, I'm now using the Melos-Gold as a preamp with my speaker system. When I push the volume with the JJ's, .....clipping. With the Sovtek's....no clipping. Is this just the JJ's being outclassed in terms of power handling, or is something else happening here?
(defective tubes, tubes haven't had enough break-in, etc.?)

Any thoughts?
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post #54 of 137
4/20/02 at 12:26am
Thread Starter 
I'm also using the Melos as a preamp, but I've never heard it clip. Sounds like something's off. What's the exact tube type of the JJ's you have?
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post #55 of 137
4/20/02 at 12:31am
Are the JJ's 6922's, or are they 6dj8's? The Melos needs a 6922 which has greater power-handling than its predecessor, the 6dj8.

markl
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post #56 of 137
4/20/02 at 12:31am
Hirsch and Mark,

The print on the tubes and the tags on the box call them: E 88 CC. Have I got the wrong tubes????
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post #57 of 137
4/20/02 at 12:35am
No, that's correct. The E88CC = 6922.
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post #58 of 137
4/20/02 at 12:38am
Quote:
Originally posted by Nick Dangerous
No, that's correct. The E88CC = 6922.
Thanks, Nick.....I wonder why they clip at about 2:00 o'clock, and the Sovteks don't....?
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post #59 of 137
4/20/02 at 12:41am
Well the Sovteks you have are ex-Russian military, designed and built to work under rough conditions.

markl
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post #60 of 137
4/20/02 at 12:44am
That's my feeling, Mark...I just don't think the JJ's are up to the task!

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