Teac A-2300SX and others resistor stack

Large wirewound resistors, some have a metal clamp and the resistance can be 'trimmed' so to speak to get an exact value.

This is the full set of 3 and was probably common in all of the 7 inch machines at that time as they all used a slightly smaller motor.

The big one I can see is 1k other is 150 ohm last i cannot see as left it set