It is on a schematic that i tried to marry with another and the V- resistor gave me grief. I crudely redrew the circuit moving the resistor from V- to V+. Will they both work the same ? I guess that I am used to seeing the V resistor on the + leg.

 

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You can't just swap the power supply connections.

What is the device with MFG terminals? I don't recognize it.

Whoever drew the original schematic took the effort to draw straight lines, but couldn't use the same (or at least similar) resistor symbol. and they forgot to put the arrow on the emitter of the transistor. Mind boggling...

 

Images positioned for easier comparison:
View attachment 141984

You can't just swap the power supply connections.

What is the device with MFG terminals? I don't recognize it.

Whoever drew the original schematic took the effort to draw straight lines, but couldn't use the same (or at least similar) resistor symbol. and they forgot to put the arrow on the emitter of the transistor. Mind boggling...

It's from a buzzer data sheet sep 1172

 

In this case, -V is ground and +V is 3-28V. Other supply values are possible because the only requirement is that the difference between +V and -V be 3-28V.

 

It is a bare piezo sounder element. You can move the resistor, but you cannot swap the +V and -V connections. That is, -V connects directly to G, and +V connects to the resistor, which connects to M et al.

ak