Description

Strong pair, nice labels. Siemens codes look like 64' and 66'. Test 3500/3600 & 3600/3700 where 2600 is good in a calibrated Hickok 539-B. Listening tested in a Maxi-preamp 2 for excessive noise & microphonics. Shipping includes insurance. All tubes guaranteed to test good or may return. Cannot be responsible for what tubes test in another tester. Please see our other items for more vintage tubes & audio. We combine orders for shipping. We do not change values for customs. Thank You.