Some years ago I worked for a company that repaired Radios and TV's we had a call that the coin box on this ladies tv had stopped working.
On arrival at the house we examined the tv a 12inch floor model and could not find a coin box. The lady of the house explained that she put a shilling in the slot at the back and the tv worked, on a demonstration we discovered she had been using one of the vent holes in the back board that sloped away before dropping vertically to the floor.
On removal of the back board we discovered how the system worked the fuse had blown and on dropping a shilling through the slot it had bridged out the fuse until the vibration from the mains powered speaker dropped the coin into the lower speaker cavity. The reason that it stopped working was because the fuse holder blades had burnt off !!
We replaced these and supplied a new fuse and also returned the £50 in shillings (to the new sparks around 20 shillings to the pound) old money
[This message has been edited by pauluk (edited 12-26-2004).]
Service call, partial power out in a home. Found one 20 amp branch cb triped HO said "I tried to reset it a few times, but it keeps tripping"
Went thru the affected areas of the house looking for the obvious.....
Checked a bedroom wall, and pulled the bed away from the wall.... Found a quarter (25 cent coin) had dropped from the bed, and bridged the hot/neutral pins on a lamp that was plugged into the receptacle and partially hanging out.
Turns out the boy was counting coins, dropped one, and that's what caused the problem.
Luckily, the arcing didn't set the bed covers afire....he said he tried to reset it numerous times!!