Kryoflux or Catweasle

Paul Koning paulkoning at
Thu May 25 10:34:11 CDT 2017

> On May 25, 2017, at 6:03 AM, allison via cctalk <cctalk at> wrote:
> On 05/25/2017 12:18 AM, Chuck Guzis via cctalk wrote:
>> On 05/24/2017 12:49 PM, allison via cctalk wrote:
>>> I remember when RTL was new and uRTL was a later improvement.
>> Flatpack and TO-100.  I probably still have a few mW RTL packages
>> around.  DIPs came later.
> Both and 3 input nors in a flat pack.... about 5000 of them were used in
> AGC.

Early RTL from Fairchild came in round transistor cans (TO-8?) with 8 leads.  Dual 2-input NOR (914), single JK flop (923), dual (?) inverters (900) if I remember right.  Never used them, but I remember seeing them in a Morse code keyboard article around 1968.


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