jtm45 transformer questions

[mark enger]

I have a heyboer 40watt OT, it's 4k with a 8ohm output tap so if
i hook a 16 ohm speaker to the 8 ohm tap the OT is now a 8k correct?
I'm hoping this will work out as it's a budget build, mark

[statorvane]

That is correct.