amperex 7308 green label

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2008年7月27日. Amperex 6922 – Jan or PQ Orange label, made in the USA <圖17> Amperex 6922 – PQ O... Amperex 7308 – Green Label, made in the USA.
This is a continuation of the thread: Tube Characterization: 6DJ8, 6922, 7308. Will the Amperex 6922,PQ,White Label,Gold Pins,U.S. or Holland (Joe' .. white label6922 tubes for the phono (Matched) and one green label for the Line stage.
Amperex 7308 Amperex JAN 7308 (orange and green label) Siemens 7308 Amperex 6922 PQ (white and orange label) Phillips 6922 ECG.
AudiogoN Forums: E188CC/7308/6922.

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AudiogoN Forums: E188CC/7308/6922.
Probably not broken it yet, but they have less gain than my Amperex 6922 Green label. Less vibrant in the upper mids, with deeper and less.
Withe the Amperex 7308 tubes (a quad of white label USN-CEPs), all five listeners agreed hands down that. 5/ green label JAN(from 1970s).
. 6922 made by Amperex/Philips Holland, which has been described as "Best of the. (light green label), which is actually more expensive (around $2,000 each), even. Siemens E188CC/7308; Siemens CCa (old type); Amperex 7308 "PQ".
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amperex 7308 green label

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amperex 7308 green label

AudiogoN Forums: E188CC/7308/6922.
2008年7月27日. Amperex 6922 – Jan or PQ Orange label, made in the USA <圖17> Amperex 6922 – PQ O... Amperex 7308 – Green Label, made in the USA.
This is a continuation of the thread: Tube Characterization: 6DJ8, 6922, 7308. Will the Amperex 6922,PQ,White Label,Gold Pins,U.S. or Holland (Joe' .. white label6922 tubes for the phono (Matched) and one green label for the Line stage.