Made by Tungsram (Hungary).
Packing : OEM.
The used ECC83 (12AX7) Tungsram vacuum tubes have been checked by a calibrated Hickok 539B vacuum tube tester.
By the operating manual of the tester the typical value
of the MC (Mutual Conductance) of the NEW ECC83 (12AX7) vacuum tube is : 875
This is taken as 100%.
(Given for each tube System 1 and System 2 [in Micromhos]).
On each tube I placed a little white sticker with the measurement results.
MUTUAL CONDUCTANCE TEST: here we can get exact
numerical value in micromhos.
The condition of TUT (Tube Under Test) can be expressed in percent.
For example : in case of the NEW ECC83 (12AX7) listed typical
value of mutual conductance is 875 micromhos.
If the TUT has 1.500, the percental condition is
(1.500/875) x 100% = 171 %.
Result of the mutual conductance test, as follows :
|
No |
MC |
Price Euro |
Date Codes |
Comments |
Photos |
|
001 |
Triode 1 : 1.500 = 171 % |
100,00 Euro / quadrate |
"G9" = Nov.1963 |
Matched quadrate set These are from the 1960's, extremely rare! |
|
|
Triode 2 : 1.500 = 171 % |
|||||
|
002 |
Triode 1 : 1.500 = 171 % |
"G9" = Nov.1963 |
|||
|
Triode 2 : 1.500 = 171 % |
|||||
|
003 |
Triode 1 : 1.500 = 171 % |
"X1" = June 1964 |
|||
|
Triode 2 : 1.500 = 171 % |
|||||
|
004 |
Triode 1 : 1.500 = 171 % |
"G1" = Nov.1964 |
|||
|
Triode 2 : 1.500 = 171 % |
|
No |
MC |
Price Euro |
Date Codes |
Comments |
Photos |
|
005 |
Triode 1 : 1.600 = 183 % |
90,00 Euro / quadrate |
"G9" = Nov.1963 |
Matched quadrate set These are from the 1960's, extremely rare! |
|
|
Triode 2 : 1.600 = 183 % |
|||||
|
006 |
Triode 1 : 1.600 = 183 % |
"T1" = July 1964 |
|||
|
Triode 2 : 1.600 = 183 % |
|||||
|
007 |
Triode 1 : 1.600 = 183 % |
"MH" = June1969 |
|||
|
Triode 2 : 1.600 = 183 % |
|||||
|
008 |
Triode 1 : 1.600 = 183 % |
"??" = ????????? |
|||
|
Triode 2 : 1.600 = 183 % |
|
No |
MC |
Price Euro |
Date Codes |
Comments |
Photos |
|
009 |
Triode 1 : 1.600 = 183 % |
100,00 Euro / quadrate |
"O9" = May 1963 |
Matched quadrate set These are from the 1960's, extremely rare! |
|
|
Triode 2 : 1.600 = 183 % |
|||||
|
010 |
Triode 1 : 1.600 = 183 % |
"O9" = May 1963 |
|||
|
Triode 2 : 1.600 = 183 % |
|||||
|
011 |
Triode 1 : 1.600 = 183 % |
"O9" = May 1963 |
|||
|
Triode 2 : 1.600 = 183 % |
|||||
|
012 |
Triode 1 : 1.600 = 183 % |
"X9" = June 1963 |
|||
|
Triode 2 : 1.600 = 183 % |
Vacuum tubes,Vacuum tubes,Vacuum tubes,Vacuum tubes,Vacuum tubes,Vacuum tubes
TERMS:
Each tube has been packaged in two layers by
use of air insulating
wrapping paper.
So packaged tubes are housed in an international standard size box.
We use foam inside the box to preserve the tubes against bumps.
Method of payment is : Euro or USD.
Paying method:
- per PayPal,
- per International Money Order,
- per International Postal Money Order,
- per Travelers Express Money Order,
- per American Express Travelers Cheque,
- per Western Union Money Order,
- per Personal Cheque,
- per Bank Transferring,
- per Cash in a registered letter.
If you have any questions , I will answer as quick as possible.
Thanks for visiting.
Tungsram tubes Tungsram tubes Tungsram tubes
Last update : 2007. augusztus 13. 22:54