New Matched Quad (4) Psvane 811A Vacuum Tubes

New Matched Quad of Psvane 811A Vacuum Tubes

We are so happy that Psvane is producing the 811A because it’s the only one on the market. These are extremely robust and feature a thorium tungsten cathode. A great choice for your high-frequency oscillation power amplifier.

A Note on Psvane Packaging & Matching

You are most likely familiar with seeing Psvane tubes sold in proprietary Psvane packaging, factory tested, and/or matched in pre-made sets. In order to provide a wider variety of sets (including singles), we hand-test and match all models that we carry in-house. We test and/or match by Gm, Ip (plate current) and/or gain with a maximum range of +/- 15% on modern Maxi-Matcher testers. While 15% is our maximum, we strive for 5% when possible. This ensures that we are able to match to our high standards. These tubes come boxed individually.

Extended Guarantee

We offer a full one-year guarantee covering functional defects - including noise. The guarantee period begins the day you receive your order.