On Tue, 2025-10-28 at 14:58 -0500, Jon Elson via cctalk wrote: > On 10/28/25 14:03, Martin Bishop via cctalk wrote: > > Schotky diode the keep the base out of saturation ? > > As used in 74S 74LS, appreciate it's an extra component to bodge in > > see eg > > https://electronics.stackexchange.com/questions/242715/using-a-schottky-diode-to-improve-pnp-transistor-turn-off-time > > That's called a Baker clamp, was commonly used back in the > mid '60s.
IBM 1401 SMS circuits used an inductor, typically 56µh but sometimes as small as 1.5µh, which I was told was to reduce either the switching or storage time (I don't remember which). See for example http://vandyke.mynetgear.com/1401/docs/ALD/SMS/370143/370143.pdf or http://vandyke.mynetgear.com/1401/docs/ALD/IBM-StandardModularSystem-Neff7.pdf or http://vandyke.mynetgear.com/1401/docs/ALD/223-6875-1_IBM-SMS.pdf Is there a name for that?
