Chatham / Cetron 5R4W - ceramic base potato mashers

These are some of the toughest looking tubes you'll ever come across. The 5R4WGA, 5R4WGB and 5R4WGY series are great full-wave rectifiers that are used in many world class audio amps and work great in guitar amps as well. This tube is often a good substitute for a 5U4 type. Some are made by Chatham Electronics and others by Cetron. Select from three distinct colors. Tube tests as new. This tube is sold individually. Photo is a sample from the lot.