Any interest in "newer" hardware, software?
bfranchuk at jetnet.ab.ca
Tue Jul 28 13:50:34 CDT 2020
On 7/28/2020 9:11 AM, Paul Koning via cctalk wrote:
>> On Jul 28, 2020, at 10:35 AM, Jay Jaeger via cctalk <cctalk at classiccmp.org> wrote:
>> On 7/24/2020 1:36 AM, Boris Gimbarzevsky via cctalk wrote:
>>> found a box of old Univac cards which appear to be DTL with individual
>>> transistors and then go on to having DTL IC's as well as some old IBM
>>> cards. Used to pull transistors and diodes off these to build my own
>>> circuits 50 years ago. Now, with storage being so ridiculously cheap
>>> haven't even come close to making a dent in the capacity of a 256 Gb SD
>> I might be interested in boards with Fairchild DTL chips, as I have a
>> DTL-based disk controller on my HP 2114 that needs work. Not sure if
>> Univac used Fairchild DTL, though. Could you perhaps read off a few part
>> numbers whenever you get a chance?
>> My DTL chips have markings like:
>> DT uL93659 (Chip type 936)
>> F 7016 ...
> Is that DTL or RTL? Fairchild originally came out with RTL chips, which had uL part numbers like uL914 (dual 2 input NOR) and uL923 (JK flop) in TO cans with 8 leads.
> The supply voltage would tell you; RTL uses 3.6 or so, while DTL uses 6 volts.
I am thinking we have come full circle, with 3.3V or less logic of today.
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