12AU7A / ECC82 Toshiba Japan, long plate, 1963, NOS specs v299

145,00

Highlights:   

  • Long plate sound signature  
  • Japan production
  • Balanced systems
  • NOS specs

1 in stock

Description

Toshiba Tokyo Japan production !

This is a 12AU7A (ECC82) produced by Tokyo Shibaura Electric Co. in1963 in Tokyo Japan. The tube has a ring getter and long ribbed grey plates, see pictures. Tube with balanced systems; see test results.

Sonics

The Tokyo Shibaura Electric Co. 12AU7A double triode’s most distinctive sonic feature is its transparent, neutral, spacious presentation, with a light touch of warmth illuminating your music.And of course the magical touch of the long plates! I refer to the many threads on the web for more information. Excellent preamp valve and because of the low noise level, very suitable in phono stages.

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 ECC82 tube family. The measurement data below shows that this tube is balanced. And fulfills the factory specs of a new/NOS tube.

Valve

V300

Ia (plate current):

Transconductance (Gm):

Gas test, Shorts test:

10,0 / 9,9  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)

Short description

Tube type 12AU7A
Quantity of Tubes One tube
Brand Toshiba
Manufactured in Tokyo Japan
Dates 1963 (3E)
Construction Long ribbed grey plates 
Getter Construction Halo getter 
Print Condition Nice; see pictures
Box included Generic white  box
Equivalent tubes:  ECC82, 12AU7, ECC802S, CV4003, 12AU7A ,5814A
General test results  NOS 
Please study photos carefully; what you see is what you get!
Please read our test and shipping policy before buying !

 

Additional information

Weight 5 g