07-05-2015, 05:59 PM
Things that don't work when they get to site can be fun but this one never made it out of the factory.
The story was told by my father from the early 1960s when he was working in the fledgling packaging industry.
It was one of the first heat sealing machines ever with a safety cut out based on photo resistors with lots of OC71s in the circuit. Being hand made and still under development the PCBs had been handled quite a bit and the lacquer had come off some of the transistors.
Cue customer and on go the covers for the demo at your peril.
The rep put his arm into the machine to demonstrate the new magic eye safety cut out and the machine tried to seal his hand into a bag. Ouch!!
The poor guy desperately struggled not to scream and just about managed to hide his singed hand from the customer.
Always test again with the covers on or else you will be in trouble.
The story was told by my father from the early 1960s when he was working in the fledgling packaging industry.
It was one of the first heat sealing machines ever with a safety cut out based on photo resistors with lots of OC71s in the circuit. Being hand made and still under development the PCBs had been handled quite a bit and the lacquer had come off some of the transistors.
Cue customer and on go the covers for the demo at your peril.
The rep put his arm into the machine to demonstrate the new magic eye safety cut out and the machine tried to seal his hand into a bag. Ouch!!
The poor guy desperately struggled not to scream and just about managed to hide his singed hand from the customer.
Always test again with the covers on or else you will be in trouble.
