ebay purchase reveals it's secrets.

[rivetmaster]

I picked up a bargain basement Panasonic RX-CT900 with some mildly interesting extras. For starters it had two very nice cassettes inside. A Sony FX II and an Agfa C-DX II, probably worth a good portion of what I paid for the box.

Then, on opening the battery compartment, I found clock batteries! From 1993!! They've been in there for 30 years. They have the tiniest bit of corrosion which had not affected the contacts.

 

[Brutus442]

That's impressive! Batteries back then were certainly robust!
It would quite a surprise to hear what's on those tapes as well. That in itself will be time machines to the past I'm sure

 

[rivetmaster]

That's impressive! Batteries back then were certainly robust!
It would quite a surprise to hear what's on those tapes as well. That in itself will be time machines to the past I'm sure

I'll let you know soon.

 

[rivetmaster]

The sony is blank. But the agfa has some radio recordings of English comedians. I recognised the catchphrase 'Can you hear me mother?' from Sandy Powel. There is a story by Charlie Drake. I'm really enjoying listening, some quite funny jokes considering the age. 1940s?

'The doctor has told me to take things quietly.'

'That's a shame, you were so fond of soup. '

 

[Tinman]

Well they are "long life" batteries.