@allenf1963 +1
Your VW van story was great.
I had a used ‘62 VW camper van that was electrically 6 volts, so I had to buy a 6V to 12V converter which bolted under the dash and powered my Tena 8 track tape player.
With four people in it, going uphill, the underpowered 40 HP engine meant I’d have to drop down to second gear to move at all.
One particularly long, uphill interstate stretch so stressed out the entire van that half way to the top the converter couldn’t take it anymore and just blew up….freaking us out and robbing us of tunes…but, hey, it wasn’t the engine.
Wish I could remember what tape it was.