原帖由 hifiedward 于 2010-9-14 16:31:00 发表
小弟本來巳打算收手暫時不再收管子，誰知道前段時間又給Jason兄毒害知道ecc81的好處；昨天看到了兩對好東東忍不了手又收了，呵呵！
第一對valvo的暗碼Tk1 D6E Tk1D6D德國漢堡廠第1批號56年4月及5月出廠
弟二對應是...... |
另外找到了大盾"Whyteleafe'A'"廠出産的M8162 ecc81，Whyteleafe'A'廠暗碼從來沒看見過！
下文是賣家的評論，看來賣家還是相當專業的。。。。。
NOS M8162 MULLARD SP QUAL ULTIMATE ECC81/12AT7 UPGRADE Whyteleafe factory, 1962
New NOS Military special quality version of the ECC81/12AT7.
Code: 650; then the Mullard Whyteleafe factory symbol [a square with a diagonal line inside it], followed by 2 2.
650 is the code for Mullard's earliest design of the military spec M8162, the Special Quality version of ECC81.
All made in the second week of January, 1962, at Mullard's celebrated Whyteleafe 'A' factory.
No other printing on them apart from the Mullard factory codes.
Lovely large copper posts.
Unusual super long getter post.
Mottled glass.
Mullard's seamed construction.
Very well matched triodes.
There's a lot of high praise out there on the web for the Mullard M8162, hi-spec version of the ecc81.
The earlier the production, the more popular they seem to be. There's a roaring trade in the early mottled glass 654 design.
These ones are even earlier, being 650 design - Mullard's first version of the M8162!
Please search online for more info on these. Commercially labeled versions are selling elsewhere online for US$145.00 per pair, so snap up a bargain.
Tested good for shorts; continuity; and emissions.
These valves have been individually tested for audio in a vintage studio, and are sounding superb.
No hum or hiss or microphonics - guaranteed.
Emissions test excellent - 100%+ as NOS valves.
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