Circuit diagram for the old style smoke units?

[Gerula]

I mean the ones that have the power transistor on the small circuit board mounted on the unit. I need the diagram because I can't identify the two tiny resistors.

In the attachment there's a pic of the old style unit:

[Gerula]

Nobody has it?

[jrc]

hi Gerula
It's the proportional smoker, does this help? The resistor is 10k ohm 1/4W

ross

Smoke-top.jpg (85.64 KiB) Viewed 1665 times

Smoke-underside.jpg (93.17 KiB) Viewed 1665 times

[Gerula]

Thank you, that's useful too, but I'm looking for the circuit diagram for the old style non-proportional unit.

I need the specs for the two small resistors on it.

[jrc]

The one in your attachment has a power transistor on the board so it's a proportional smoker as I've shown.
The one that has two transistors, one on each of the connecting wires, is the standard unit.
The resistors are 2ohm and I don't know what purpose they serve. I've had them burn out and the unit works without them.

[Gerula]

Trust me the one in my photo is non-proportional. It has a very small circiut board and no connection to the motors, just a 2 wire plug that goes in the Rx13.

The proportional unit, posted by you, connects to the motors as well.

[jrc]

As I've said the two resistors are 2ohm and are the only components on the standard smoker, one on each of the wires from your main board so I I've no idea why your smoker has a power transistor on it. I'd need to see a top view of your board to understand it.

[Gerula]

There are two versions of the Rx13 board: one has the power transistor on it (D882) and one doesn't. The one that has the power transistor on it is matched with a non proportional smoke unit that only has two resistors on it's small board. The Rx13 that doesn't have the power transistor on it is matched with a smoke unit that has the power transistor on it's small board.

The RX13 in this attachment has the power trasistor (big black thing between the three sockets)