isendono
Head-Fier
- Joined
- Sep 22, 2013
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6cg7 6fq7 e288cc for example
Are there any tubes that work with the T1 that look different from the stock tube, and have an interesting shape
I got the camera out and zoomed in and it seems my Mullard ecc85 is 1u7 delta 4H1 (not 9H1 as advertised) (delta meaning a triangle on it's side)
The 1u7 part the 1 is just a small stroke so I'm guessing a number 1.
I sorry if anyone has bought an ECC85 because I said that my two were better sounding than any ecc88 and then found their new Ecc85 distorted when played.
I too have now bought a third and it distorts badly.
However, unless someone tells me the ECC85 is going to hurt the Aune T1, then it will be in there a long long time.
It's superb (or for most of the forum "Awesome", the first and only time I will use the word.) Showing my age I guess
I wonder if ECC85 compatibility is device specific. Meaning, a tube that works fine for one person's T1 does not work for someone else's T1.
Are the ECC86 tubes a gamble as well?
If it were me I'd PM Coil about it.
No. It has to do with the gain/plate resistances. The circuit is not set up for ECC85/6AQ8. Some just happen to work great, some do not.
How does ECC86/6GM8 compare with respect to gain/plate resistance, etc?
As for ECC85/6AQ8 tubes that will work, would anyone be interested in ones I have personally tested to work fine? I have a few......hundred.......of them.
From what I've read, the difference is only in the heater current:
E88CC (stock for Aune T1) & ECC88 = 365mA
ECC85 = 435 mA
ECC86 = 330 mA
I don't know what that means exactly. The ECC85 obviously draws more current which is probably why some don't work in the Aune T1 which is designed for E88CC tubes. It looks like the ECC86 tubes would be a safe bet since it draws a little less. Is my thinking correct?
From what I've read, the difference is only in the heater current:
E88CC (stock for Aune T1) & ECC88 = 365mA
ECC85 = 435 mA
ECC86 = 330 mA
I don't know what that means exactly. The ECC85 obviously draws more current which is probably why some don't work in the Aune T1 which is designed for E88CC tubes. It looks like the ECC86 tubes would be a safe bet since it draws a little less. Is my thinking correct?
I'm thinking maybe it has to do with replacing the caps?
Higher quality caps might be able to handle the load better or something.