Description
Philips Heerlen Holland production !
This is a ECC82 produced by Philips in1965 in Heerlen Holland (version Gf8). The tube bears the Philips Miniwatt print. The tube has a ring getter on ‘copper’ post and ribbed grey plates, see pictures. Tube with balanced systems; see test results.
Sonics
The Heerlen ECC82 double triode’s most distinctive sonic feature, like that of many Heerlen double triodes, is its transparent, natural and sparkling midrange presentation, with a light touch of warmth illuminating your music. The sound image is spacious and deep, structured. The bass is deep but well controlled. 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.
Note: if your system is “bright sounding’ or to “bright/harsh” already, this tube is not a first choice. British made ECC82 tubes or Telefunken are to be considered in that situation.
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 1
V77 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
9,9 / 10,1 mA
2,0 /2,1 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 | ECC82 |
| Quantity of Tubes | One tube |
| Brand | Philips Miniwatt |
| Manufactured in | Heerlen Holland UK |
| Dates | 1965 (Gf8 Delta 5F1) |
| Construction | Ribbed grey plates |
| Getter Construction | Halo getter on ‘copper‘ post |
| Print Condition | Nice; see pictures |
| Box included | Generic Philips Miniwatt box |
| Equivalent tubes: | 12AU7, ECC802S, CV4003, 12AU7A |
| General test results | NOS |
