Freckles on the tube side are not burns,
but they are magnesium fall-outs originated during manufacturing.
Made by TUNGSRAM (Hungary).
Packing : OEM.
The used EL84 (6BQ5) 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 EL84 (6BQ5) vacuum tube is : 10.000.
This is taken as 100 %.
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 NEW EL84 (6BQ5) the listed typical
value of mutual conductance is 10.000 micromhos.
If the TUT has 11.000, the percental condition is
(11.000 / 10.000) x 100 % = 110 %.
Result of the mutual conductance test, as follows :
|
No |
MC |
Price Euro |
Date Codes |
Comments |
Photos/Attachments |
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.
Last update : 2007. augusztus 13. 22:55