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Z80 Starter Kit
by Mike Loewen 26 Jul '16

26 Jul '16

I dug out an unbuilt SD Systems Z80 Starter Kit (1978) that I acquired some years back in a trade, and started soldering. Sacrilege, some may say, but kits are meant to be built. :-) It took me about 9 hours from bare PCB to finished product, and worked the first time! http://q7.neurotica.com/Oldtech/Z80_Starter.jpg Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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How to use an oscilloscope
by Mike Loewen 26 Jul '16

26 Jul '16

This may interest some of you: https://www.youtube.com/watch?v=niBGkqlh2XY Alan Wolke's presentation for NJARC. "It covers the basic controls and operation of an analog oscilloscope (the first 50 minutes or so), and then how you would setup the scope to measuring the signals in various locations in a typical antique AM radio (staring about 52 minutes in)." Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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Re: [vcf-midatlantic] Z80 Starter Kit
by Mike Loewen 25 Jul '16

25 Jul '16

On Sun, 24 Jul 2016, Bob Aviles via vcf-midatlantic wrote: > On 07/23/2016 07:42 PM, Mike Loewen via vcf-midatlantic wrote: >> >> I dug out an unbuilt SD Systems Z80 Starter Kit (1978) that I acquired >> some years back in a trade, and started soldering. Sacrilege, some may >> say, but kits are meant to be built. :) It took about 9 hours from >> bare PCB to finished product, and worked the first time! >> >> http://q7.neurotica.com/Oldtech/Z80_Starter.jpg > > I wish you video tape the process of building it, that would have been > great! > Bobby Editing nine hours of video? I don't think so. :-) Here are some progress shots: http://q7.neurotica.com/Oldtech/Z80_Bare.jpg http://q7.neurotica.com/Oldtech/Z80_Sockets.jpg http://q7.neurotica.com/Oldtech/Z80_Components.jpg Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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yes, we have no bananas
by Herb Johnson 24 Jul '16

24 Jul '16

The lyric quality of Jeff's message was lost in translation, which I've tried to restore as below: Ode to banana plugs The analog computers are programmed by wires which walked away, when the computers retired. To other loves with banana lugs and everyone loves the piggyback plugs. So fight entropy and bring the wires home For love of analog and the law of Ohm. - translated from the original by Herb Johnson -- Herbert R. Johnson, New Jersey USA http://www.retrotechnology.com OR .net

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Paging Ben Greenfield
by Evan Koblentz 23 Jul '16

23 Jul '16

Ben, please call/text me: 646-546-9999. Need to ask you a question here at HOPE.

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Re: [vcf-midatlantic] yes, we have no bananas
by Brian L. Stuart 23 Jul '16

23 Jul '16

> The lyric quality of Jeff's message was lost in translation, which I've > tried to restore as below: > > Ode to banana plugs > > The analog computers are programmed by wires > which walked away, when the computers retired. > To other loves with banana lugs > and everyone loves the piggyback plugs. > > So fight entropy and bring the wires home > For love of analog and the law of Ohm. > > - translated from the original by > Herb Johnson Excellent. That's one for the archives. BLS

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At hope fri
by william degnan 22 Jul '16

22 Jul '16

So far I have seen jim sheet and Jon chapman Bill Degnan twitter: billdeg vintagecomputer.net

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yes, we have no bananas
by Jeffrey Jonas 22 Jul '16

22 Jul '16

WE NEED YOUR BANANAS. Your banana jack-jumper cords, that it. The analog computers are programmed with real wires. Wires that love to walk away because so many other things use the ever-loving banana plug, and everyone loves the piggyback connectors. Please fight entropy and bring the wires back together, for the love of analog! thank you

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Available soon (semi-OT): vintage Macs and possibly some Cobalt Qubes
by Herb Johnson 22 Jul '16

22 Jul '16

> I'm primarily interested in the IIci's. ^^^^^ IIcx's I meant, they are very similar. - Herb -- Herbert R. Johnson, New Jersey USA http://www.retrotechnology.com OR .net

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Available soon (semi-OT): vintage Macs and possibly some Cobalt Qubes
by Herb Johnson 22 Jul '16

22 Jul '16

I'm primarily interested in the IIci's. The LC III and LC474 are cute machines but I need those less. I'm sure the SE/30's will attract more interest than I'd pay. I suggest you power up these oldest Macs, they will likely have problems in starting up or with sound - their capacitors fail with age. I sent a private email, you can discuss details with me privately; contact me if you did not get that email today. Thank you. Herb Johnson near Trenton NJ -- Herbert R. Johnson, New Jersey USA http://www.retrotechnology.com OR .net

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