453/Repairs

My 453 (serial number 000977) developed HV transformer loss like the well-known problem in Type 547. In 2015 I rewound the transformer using a low-tech procedure documented in the TekScopes group at groups.io, see Topic and Photo Album "453 HV Transformer Rewind". The scope is still happy in 2024. The transformer spec sheet is at https://w140.com/tekwiki/wiki/File:Tek_120-0360-00.pdf . Vintage dave