This is an awesome tubes from The Teleunken, the best of the 12AX7 Class, I had sold all my ECC803S in the past three years...at a cut throat Price of HKD2,500.00 a bottle.
How UK friend told me that the curreent price of such a great bottle is HKD12,000.00 a pair... I would consider to buy only if that is NOS... Or slightly used as this great vacuum Tubes will guarantee life time of 10000 hours with great audio reproduction pleasure for you!
Imagine a Solid State LED will last for 30,000 Hours. and this Telefunken heater can last for 10,000 hours, what can we day about the quality of such a great bottle, if you switch on your System for 4 hours a day and 5 days a week, then it is an operation for 10 years! That is a HKD$1,000 a year. Worth it...
Have you tried, if you had, I think you will think that is worthwhile!!
HK Snob
There is no question about what is best made of EL84: Telefunken EL84. Now it is about USD$100 each now... quite expensive, but donot ignore that it lasts longer than you can expect.
Then Funkwerk, Mullard, I guess...
Feverip
There are the best 12AT7, in my humble opinion.
Telefunken 801S
Marconi 309
Mullard 12AT7 Yellow printing
Siemens ECC81 D-shape getter
Feverip
This is my personal rating on 6922's musical reproduction quality in decending order.
1. Telekunken CCa
2. Tekefunken E88CC gold pin
3. Telefunken E88CC
4. Bugle boy E88CC 1960 D-getter
Feverip
This is my personal rsating on 12AU7 in musical quality reproducion in decending order.
1. Telefunken ECC82 1950
2. Telefunken ECC802S
3. Marconi 329
4. Telefunken 12AU7
5. Mullard ECC82
Feverip
My personal idea on 12AX7 tubes are listed below in terms of musical quality decending order.
1. Telefunken ECC803S
2. Ryatheron 7729 gold Pin 1950s'
3. Telefunken ECC83
4. Marconi 339
5. Telefunken 12AX7 ribbed grid
6. GE 5814WA
7. Mullard 12AX7 Long grid
8. Tungsol ECC803S
9. Sylvania 5751 1950's
10. Telefunken 12AX7 smooth grid
Feverip
