Description
ECC88 6DJ8 “BUGLE BOY” made by AMPEREX Heerlen HOLLAND 1961/1962
This is a pair early ECC88 Amperex Bugle Boy tubes made in Holland (Heerlen plant). A legendary member of the ECC88/6DJ8 family. Tubes have grey shield and large halo-getter. Very healthy tubes with matching systems; see test results. These tubes are pulls from rarely used lab equipment. The acoustical properties of the Bugle Boy are legendary and widely known. I refer to the many threads on the web for more information.
The acoustic properties of the Bugle Boy are legendary and widely known. I refer to the many threads on the web for more information. Tubes are manufactured in 1962.
THE PRODUCTION YEARS 1958 TILL 1963 ARE WIDELY CONSIDERED THE BEST!
Sonics
Excellent preamp valve, low noise, very smooth extended highs, very good in phono stages. Balanced and smooth sounding with liquid midrange, recommended!
Test results*
| Valve 1
V61 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
17,1 /16,4 mA
14,3 /13,6 mA/V OK |
= NOS / NOS
= NOS / NOS
|
| Valve 2
V75 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
16,6 /17, mA
12,3 /12,1 mA/V OK |
= NOS / NOS
= NOS / NOS
|
Tested for leakage and gas.
* Where 100% is : Ia = 14,2 to 15,8mA, Gm= 10,5 to 14,9 mA/V.
Test methods are outlined on the Tube testing page, for test conditions see Category Page.
Short description
| Tube type | ECC88 |
| Quantity of Tubes | One pair |
| Brand | Amperex Bugle Boy |
| Manufactured in | Heerlen, Netherlands |
| Date codes | Δ3D4 & Δ3J2 (1963) |
| Plate Construction | “Spangitter” |
| Getter Construction | Large halo-getter, grey shield |
| Print Condition | Nice; see pictures |
| Box included | Generic white box |
| Equivalent tubes: | 6922, 6DJ8 |
| General test results | NOS specs |
