On Tue, 10 Sep 2002, chris wrote:
> I just opened the box for mine. Now mine most likely is designed to hook
> up to the serial port if a IIc, but inside, there is NOTHING of
> importance. No amplifier, no nothing. Basically, the cable comes in, 2
> wires go to the Volume, which splits to a headphone jack and then to the
> speaker... and 2 wires go to the pot for "Rate".
>
> So at least on the IIc version, everything must be done in software, and
> the rate pot must just alter the signal on the serial port, and just
> tells the software to make the correct changes.
No, that's not right. The //c has no hardware for producing sound other
than the internal speaker that you rattle incessantly to make any noise
with.
Maybe there was an additional module that plugged in between the speaker
box and the //c?
> I don't know what is in the box for the IIe card. I found a pic of that
> box, and it appears to have a standard 1/8 plug for that speaker jack on
> the card. I couldn't really tell from the picture if there was even a
> "rate" dial on that box at all. If there was, the dial was missing and it
> was just the post. I would think that if there is a rate dial for it,
> that something would have to be done internally to the box, because there
> doesn't appear to be any way to get the signal back to the card (the jack
> on my card looks like it might be a mono type plug, which would only give
> you the +/- for the speaker and no return path).
I haven't looked at one in a while so I don't remember if there is a
"rate" dial, but my recollection is that there is not.
I did some googling but it didn't turn up anything terribly relevant to
the Echo IIc.
Sellam Ismail Vintage Computer Festival
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Received on Tue Sep 10 2002 - 16:33:01 BST