PC85 coreboard regulator current draw?

[CheshireNoir]

Normally populated SRAM coreboards don't draw much power nor do their voltage regulators generate much heat.
Is there any particular reason for using expensive switching voltage regulators?

The Hitachi HM6116P and LP SRAMs were a fantastic development using far less power and being considerably quieter than the previous generation 2114 1K x 4 SRAMs.
The TCT 16K RAM card used 4 x 7805 TO-220 voltage regulators, the subsequent AT16K used a single 1.5A TO-3 cased regulator.

Thanks someone.

I was mostly worried about heat :-)
It certainly gets hot to touch without a generous heatsink.

If it was pulling under half an amp I actually have the regulators left over from another project.

Chesh