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La Figaro 339
Apr 29, 2014 at 11:09 AM Post #2,251 of 6,903
ultrainferno said:
  That was my idea as well until I got those graphite plates...
The American 6AS7G are very nice though, and do try the cheap Thomson 6080wa
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So they're pretty notably better huh? I'm pretty happy with what I have now but if there's something better out there I just might have to check it out. I've been watching eBay but they all go pretty high, especially matched pairs. Is there any better place to look?
 
Apr 29, 2014 at 2:48 PM Post #2,254 of 6,903
dante020 said:
  I've always wanted some of those too but the prices aren't a whole lot better. I've only rolled RCA 6AS7G, TS 7236, and RCA 6080 plus stock tubes. They're all noticeably different but I think I prefer the 6AS7G's in the end, they seem more "musical" to me.
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+1 for the 6AS7G in general but also with the notable exception of the 6080WB graphites which come immediately behind my 5998.  Look at what I scored a couple of days ago 
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http://www.ebay.co.uk/itm/LOT-3-6080-WB-TUNG-SOL-MATCHED-SET-DATES-VINTAGE-TUBE-RADIO-AMP-AUDIO-HAM-TV7-/141262836179?ssPageName=STRK%3AMEWAX%3AIT&_trksid=p2047675.l2557&nma=true&si=RAIpOQRNpgo3ChkDhWg3Uy5Ia7Y%253D&orig_cvip=true&rt=nc
 
OK, it's not the Bendix label nor the slotted graphite colums but still I'm very happy, never thought I'd get 'm at this price to be honest.  And I had been looking for quite some time.
There's a number of WE 421A ending in a day.  Pricing looks reasonable for now but will probably explode in the last couple of minutes.  And a batch of tubes labelled Tung Sol 5998 but they don't have the 'domino' plates.  I mailed the seller about it and he came back with an explanation about the tubes being generic ones fabricated for the military but I'm staying away from those.
 
Apr 29, 2014 at 2:56 PM Post #2,255 of 6,903
Very good deal, I wonder how I could have missed it.
Those 5998 he's selling are just 6AS7G, you can see the 5998 printing was added later, or so it looks. Don't get those
 
Apr 29, 2014 at 11:40 PM Post #2,256 of 6,903
magnetiq said:
  there's always a problem in this realm, no? lol

 
developed crackle in right (occasionally) left channel regardless of which valves i use. going through the thread, seems it might be a resistor-related problem. it only happens intermittently (something like a 1 or 2 second burst of what sounds like slightly louder valve microphonics every hour-ish, sometimes longer), and for the moment isn't that annoying unless i have nothing playing.

 
my question is, is it ok for me to do nothing about it? i've had experience soldering wires and stuff, but i'm still crap at it and would rather I don't take any risks dismantling an otl amp for a minor problem—unless it's dangerous to keep it this way!

 
thanks again
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seriously, any advice on this'd be great, it's getting annoying now.
 
i can sometimes trigger it or the noises react when i gently press on a transformer casing--but again, sometimes doesn't happen for a while.
 
any potential diagnosis?
 
Apr 30, 2014 at 12:51 AM Post #2,258 of 6,903
magnetiq said:
 
seriously, any advice on this'd be great, it's getting annoying now.
 
i can sometimes trigger it or the noises react when i gently press on a transformer casing--but again, sometimes doesn't happen for a while.
 
any potential diagnosis?
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Drop it off at any tube amp shop, they'll be able to help you out without you risking to blow something up or electrocute yourself because you don't know what you're doing.  Trust me, it'll work out cheaper than guessing and attempting to fix it yourself.  Alternatively, send a mail to the manufacturer who periodically checks up here and see what he says.  
 
Apr 30, 2014 at 2:12 PM Post #2,260 of 6,903
magnetiq said:
  Alright, cheers
 
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It's the power resistor. The stock one were pretty bad quality on mine. I resolve the crackling problem with a simple resistor change (the big yellow alu heatsink one). When I changed it, I noticed the resistor Inside the heatsink was completely in dust, like sugar dust or carbon fragments. Now I saw what I was hearing crackling!
 
I got the bug and eventually changed more than just the résistors!
 

 
Apr 30, 2014 at 2:18 PM Post #2,261 of 6,903
dante020 said:
  I figured, I just find it hard to spend $100+ on a glorified lightbulb. On the other hand, at the rate tube prices are increasing I could probably resell them in a year or two for double. Stupid expensive hobbies. Lol
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I really like all the tubes I have for the 339, it's a very good amp. Actually I stored the GECs 6AS7G safely and used Chatham 6AS7G/Bendix slotted graphits and L63 drivers... When I saw the picture that the Boss Yuking posted, I got the idea to dig up the GEC.
And while the character of the sound is not night and day, I can tell you I was surprised, and I really thought it was pure magic bliss. It's expensive for a reason, and there are hunters for that dying breed everywhere and it's not just for this amp!
 

 
May 1, 2014 at 9:45 AM Post #2,265 of 6,903
This looks really good. I wonder:  would it be possible to list the specs and the components?  Also, is it possible to order a custom job with super high grade components or extra features?   I'm thinking of the 'Rosenkavalier' of old.  A good, english language website with customisation options and details would be nice.  Given the quality of your products I'm certain that there's more market potential but many people are hesitant.  Hell, some competitors in Europe sell at 2-3 times your price and are definitely not on the same level.
 
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