31 Jul
2013
31 Jul
'13
7:36 p.m.
> IBM wanted LOTS of money for each row of 16K RAM,
but it took the same
> ones as TRS80, where there was an intense market competition.
On Wed, 31 Jul
2013, Tony Duell wrote:
Alas TRS-80 RAM 'kits' cotnained 8 chips... Of
coruse if you dealt with a
suppleir who sodle the loose chips you could buy the required 9 of them.
One time, when I was running low, I bought 9 sets of TRS80 RAM from
Godbout. That gave 8 sets. In one of the FPUIB bundles recently, there
were SIX of his TRS80 instructions; I have no idea where the other three
copies are.
There was even the right connector on the SGA board
for said modulator,
complete with power connections.
In addition to the RF Mod connector (one of my aftermarket video boards
had that, but no RCA composite connector! but the Sup'R'ModII had an RCA
on it's input side as well as output, so I used it as a connector cable),
the CGA ALSO had connector for light pen, which along with the cassette
and cable was never sold by IBM.
--
Grumpy Ol' Fred cisin at xenosoft.com