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- Users: mordy
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Eric McChanson Headphone Amp??
Do you think it would be appropriate to post price for each version of the amps presented?- mordy
- Post #9,878
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
With all due respect, I for one would appreciate a single thread - there is room for everything there pertaining to McChanson Ultimate amps.- mordy
- Post #9,874
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
Remember trying this as well - was not impressed with all EL3N in the Euforia. Maybe it needs specialized circuits to work well?- mordy
- Post #9,815
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
Tried my Ultimate on my Elac Debut 6 speakers but with poor results. But I get excellent results when I use the Ultimate as a preamp. (If you don’t have preamp out jacks, the headphone jack serves the same function). I use an old Onkyo 85W receiver from the 80s and it sounds great. You can buy...- mordy
- Post #9,797
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
What is a balanced transformer?- mordy
- Post #9,690
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
There is another trick you can try with buzzy tubes. Take the 6.3V tube and leave it on for one minute at 12V - might help…- mordy
- Post #9,679
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
I have a pair Tung Sol 6K6GT that I like.- mordy
- Post #9,676
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
In this case it is a real great adventure - we chanced upon a builder with decades of experience who builds a superlative product at a very reasonable price. Because of the versatility of this amp we have all embarked on great tube rolling adventures, often with lesser known tubes that are...- mordy
- Post #9,626
- Forum: Headphone Amps (full-size)
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2359glenn | studio
Very happy to hear that you are back at building amps! Wishing you a complete recovery and great success!- mordy
- Post #39,953
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
It’s all about synergy. That’s one reason I don’t sell tubes I don’t use - you never know when it will be the right one in a certain combination.- mordy
- Post #9,620
- Forum: Headphone Amps (full-size)
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The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
There is no doubt that there are professional sellers lurking on these pages. When they see a tube getting favorable reviews they jack up the prices and make more tubes available.- mordy
- Post #4,173
- Forum: Headphone Amps (full-size)
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The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
I am glad to help but many times it is hard to figure it out or not even possible.- mordy
- Post #4,171
- Forum: Headphone Amps (full-size)
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The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
With all due respect a date code of 9-09 and factory code of 188-5 should indicate a later decade than the 30's. 188 is the GE factory code and 05 is the Owensboro, Kentucky factory that GE bought from Ken-Rad (Kentucky Radio) in 1945. The pictured tubes have to be made after 1945, the 9th week...- mordy
- Post #4,169
- Forum: Headphone Amps (full-size)
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The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
Tubes last a very long time - what's wrong with a used tube? IMHO you cannot hear the difference between a NOS measuring tube and one that has 60% left of it's life. And I cannot remember wearing out a tube; those that failed shorted out or were dropped and broke...- mordy
- Post #4,154
- Forum: Headphone Amps (full-size)
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The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
Just thought of something - I am using an all metal 6C5 tube now that sounds very good and is really cheap: the 6C5. It has the same pinout as the 6J5GT and is very similar electrically. Most of them are made by RCA. (Ken-Rad have good bass). If you buy them right you will get them very cheap...- mordy
- Post #4,153
- Forum: Headphone Amps (full-size)
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The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
Can't tell which are the best 6J5GT tubes but I can tell you which ones are very good and reasonable: Early 1950s tall tube metal base Sylvania (many rebranded exists) and Russian 6C2C. To me among the best sounding is a National Union with top getter flash (other versions don't sound as...- mordy
- Post #4,150
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
I think I remember somebody saying that capacitors are not important, and you adjust to the sound...- mordy
- Post #9,595
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
As pretty as those RCA 807 tubes, that's how ugly these tubes are: A blast from the past from the eBay 99c stores - bought a lot of 6C5 tubes for $11.60 ($1.29 each) including freight and sales tax - no extra charge for the rusty patina. But it took some negotiation and best offer try to get...- mordy
- Post #9,583
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
Regarding matching, have you considered buying a Triplett digital tube tester?- mordy
- Post #9,577
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
I have a 1949 pair of this Russian 6F5M triode with a mu of 100 and Ri of 6.6K - how does it fit into the puzzle?- mordy
- Post #9,571
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
The 5998 is hard to find, and even harder to find at a reasonable price. I have two - one from Stavros in Greece, and one from a Canadian seller. Also 10 Tung Sol 7236. However, haven't yet found an amp where I prefer these tubes.- mordy
- Post #9,557
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
I happen to have a two-tube amp that uses a 6AS7 and a 12AU7 or similar tubes. This amp benefitted vey much from the 6528/6336 tubes. Since the McChanson 6AS7 amp has a similar layout, I mentioned this. As you point out, the 6336 did not make much of a difference in the GOTL It is around 3 in...- mordy
- Post #9,555
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
The 6AS7 amp was reviewed in the past: https://www.head-fi.org/threads/eric-mcchanson-headphone-amp.718350/page-30- mordy
- Post #9,535
- Forum: Headphone Amps (full-size)
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Eric McChanson Headphone Amp??
I have a similar type 6AS7 amp with just two tubes. As Eric how the 6AS7 amp would sound with a 6528 or 6336 tube. (I know that it is not designed for 5A current draw, but it is easy enough to add external power.) -In my amp it made a huge difference for the better.- mordy
- Post #9,533
- Forum: Headphone Amps (full-size)