Description
This is a pair of 5814A, long life tubes made by GE in OWENSBORO, KY USA. This early 1960s military spec GE 5814A is equivalent to the 12AU7WA / ECC802S tube type. It has gray plates, triple micas and extra support rods. The white print on the glass reads JG-5814A. The tubes have a tilted round halo getter; see pictures. Both tubes have the same date code.
The tubes have excellent test values that match the factory specification very well and balanced systems. The properties of this tube are widely known. I refer to the many threads on the web for more information.
The tubes are unused and have NOS test values that match the factory specification precisely and balanced systems.
Sonics
Excellent valve, low noise, smooth performer with excellent dynamics, very good in phono stages.
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 ECC82 tube family.
The measurement data below show that both systems are matched and balanced. And fulfill the factory specs for a new/NOS tube.
| Valve 1
V163 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
10,3 /10,4 mA
2,2 /2,3 mA/V OK |
= NOS / NOS
= NOS / NOS
|
| Valve 2
V168 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
10,3 / 10,2 mA
2,1 / 2,2 mA/V OK |
= NOS / NOS
= NOS / NOS
|
(Telefunken factory specification see test page)
Summarized description
Tube code: 5814A
Brand: General Electric
Manufactured in: USA
Visible Date Codes: 60-34 / 60-34
Production date: sixties
Plate Construction: grey plates
Getter Construction: tilted round halo getter
Print Condition: new; see picture
Box included: generic boxes
Equivalent tubes: E82CC, 12Au7, ECC82, 5814A
General test results: NOS
Quantity of Tubes: 2; one pair
