Pinterest • The world’s catalogue of ideas | Vintage Confessionaire Hearing Aid for Church Use In Going To Confession | The person going to confession used the hand-held microphone when speaking and listened to the priest through the small speaker. The hearing aid uses vacuum tubes.

1970... The Logically Unified Mechanical Performer, LUMP. Shield protects bystanders from potentially lethal radiation from the five mega volt cathode ray tube as well as possible explosion.