Re: Apple II Memory Expansion Card

["David Wilson" <mcs6502@gmail.com>]

mdj wrote:
> Michael J. Mahon wrote:
> > So the board contains its own refresh clock?  (Which it would have to
> > switch to the Apple clock when operating, to avoid asynchronous messes.)
>
> I'd bet no, and there's a clock generator in the RamCharger unit. I
> can't think why else it would need 4 pins on the connector - you only
> need a 5v source to power the Ram chips

I have a RamFactor in my hands and it has two jumpers joining pins 1-2
and 3-4 on the 4 pin connector. As two of the pins must be +5V and GND
I cannot see how either of the other pins could be clocks.