Description
This is a pair of Telefunken ECC83 new in box made in Berlin Germany.
The properties of this tube are widely known. I refer to the many threads on the web for more information. The smooth plates version of the Telefunken ECC83 a scarce. The printed code on the tubes indicates that both tubes are manufactured in 1964 in the Berlin plant in Germany. The tubes have the typical smooth long plates structure of the Telefunken ECC83 with the diamond bottom. They do not show signs of use and have NOS test values that match the factory specification very precisely and balanced systems.
Excellent valve, low noise, very smooth extended highs, very good in phono stages.
Sonics
The long smooth plates TELEFUNKEN ECC83 is known for its balanced, warm and smooth sounding with liquid midrange, recommended! The smooth plates version is typical warmer and more full sounding than the ribbed plate version!
Please read our test and shipping policy before buying !
Test method & results
The tubes have been tested carefully with the official Telefunken test set-up and our sophisticated test equipment. Please read our testmethod for the ECC83 tube family. The measurement data below shows that the pair is matched and balanced. And fulfill the factory specs of a new/NOS tube.
| Valve 1
V209 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
1,3 / 1,3 mA
2,0 /2,0 mA/V OK |
= NOS / NOS
= NOS / NOS
|
| Valve 1
V210 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
1,4 / 1,4 mA
2,1 /2,1 mA/V OK |
= NOS / NOS
= NOS / NOS
|
(Telefunken factory specification see test page)
Summarized description
Tube code: ECC83 diamond bottom
Actual Brand*: Telefunken
Printed Brand: Telefunken
Manufactured in: Berlin, Germany
Visible Date Codes: B1204301 / B1204301
Production date: 1964 / 1964
Plate Construction: Smooth long plates
Getter Construction: Round halo getter
Print Condition: See picture
Box included: Original Telefunken box
Equivalent tubes: E82CC, 12AU7, ECC82, 5814A, 12AU7A
General test results: NOS specs
Quantity of Tubes: one pair
