Description
Special quality 12AU7A twin triode, made by RCA in the USA
The 12AU7A is the typically American SPECIAL version of the ECC82 double triode. and, This is a splendid 12AU7A RCA, genuine made in the USA. 12AU7A RCA, structure with side getter and long grey plates. This tube is “totally” Balanced! It stands out for its excellent quality and performances in AUDIO applications..
Sonics
The American RCA 12AU7A is highly regarded for its sound. I refer to the threads on the web for more information.
Test results*
| Valve
V171 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
10,9 / 10,4 mA
2,3 /2,3 mA/V OK |
= NOS / NOS
= NOS / NOS
|
Where NOS is : Ia = 8,7 til 12,5mA, Gm= 1,9 til 2,7 mA/V. (Telefunken factory specification see test page)
(Telefunken factory specification see test page)
Short description
| Tube type | 12AU7A |
| Quantity of Tubes | One tube |
| Brand | RCA |
| Manufactured in | USA |
| Dates codes | 8-61 |
| Construction | Black plates |
| Getter Construction | Side getter |
| Print Condition | See pictures |
| Box included | Factory box |
| Equivalent tubes: | 12AU7, ECC802S, CV4003, 12AU7A |
| General test results | NOS |
