This is a well matched pair of Siemens 12AT7/ECC81 tubes. They were made in the famous Munich factory in Germany by Siemens for Calverton. Both tubes have the Munich factory code and tube code VF1. These tubes have short, ribbed gray plates shaped like wings, white lettering, and a halo top getter. These are highly sought after Siemens 12AT7 tubes, act quickly before they sell out!! More available upon request.
Be careful buying tubes from other sellers who list "matched pairs" but do not provide test results or specify the equipment that they use to test their tubes.
I personally tested this tube on my recently calibrated Hickok 600a and TV7D/U tube testers.
The results are as follows:
4,300/3,900
4,050/3,900
| Listed | a year ago |
|---|---|
| Condition | Excellent (Used) Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more |
| Brand | |
| Model |
|
| Categories | |
| Year |
|
| Made In |
|
Product safety information may be available here.

