Thread: Guessing Game Mk III : What Engineering Marvel is this.?

A morse receiver?

Originally Posted by bee utey

Trembler coil?

Shows how long I've been out of the game.

Originally Posted by bee utey

Trembler coil?

That's a winner. This one being used by old Henry as spark ignition coil on the model T.

The two solder pads or connectors visible in pics were where a 6V battery connects. On another side (not visible) is a third connection point - the HV or spark.

The part at the end that was called out as possibly a telegraph key is actually just an armature, the whole time a battery is connected the armature buzzes away as it makes/breaks the primary battery circuit. (Just like a simple bell or buzzer circuit). Inside the box are a couple of copper wire coils wound over a laminated iron core.

Some sort of early electrical relay/switch ?

.... had a play with one of those Model T Ford ignition coils (trembler coils) and they make good spark.

Any normal high voltage volt meter would load it down too much to get an accurate open circuit voltage. So I hooked it up to a capacitive voltmeter in the high voltage lab where I worked at the time. Measured close to 27kV.

Originally Posted by tact

That's a winner. This one being used by old Henry as spark ignition coil on the model T.

The two solder pads or connectors visible in pics were where a 6V battery connects. On another side (not visible) is a third connection point - the HV or spark.

The part at the end that was called out as possibly a telegraph key is actually just an armature, the whole time a battery is connected the armature buzzes away as it makes/breaks the primary battery circuit. (Just like a simple bell or buzzer circuit). Inside the box are a couple of copper wire coils wound over a laminated iron core.

Years ago I had an old steel cased xenon timing light with a trembler coil in it to make the HV, this looked similar.

Anyway, I'll have a look around the dungeon tomorrow, see if I can find anything interesting to post up.

That's a different twist in a can opener

Not sure if it's an engineering marvel but I haven't got anything else:



Shouldn't take the country folk very long.