Created page with "The '''6197''' is a sharp-cutoff power pentode in a glass package with a Noval base. ==Links== * [http://www.radiomuseum.org/tubes/tube_6197.html 6197 @ radiomuseum.org] * [..."
(Created page with "The '''6197''' is a sharp-cutoff power pentode in a glass package with a Noval base. ==Links== * [http://www.radiomuseum.org/tubes/tube_6197.html 6197 @ radiomuseum.org] * [...")