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Re: Decades-Old DIY Sampler Mystery Solved

From rbowman <bowman@montana.com>
Newsgroups alt.folklore.computers
Subject Re: Decades-Old DIY Sampler Mystery Solved
Date 2025-11-12 02:51 +0000
Message-ID <mnib1tF5do8U3@mid.individual.net> (permalink)
References <10erdas$3lupj$1@dont-email.me> <fon*FRnrA@news.chiark.greenend.org.uk> <mnhdb7Fqk3U1@mid.individual.net> <fon*6ZorA@news.chiark.greenend.org.uk>

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On 11 Nov 2025 22:08:41 +0000 (GMT), Theo wrote:

> (there were lots of projects like 'DIY electronic ignition for your car'
> and I do wonder how many people actually built them in order to mod
> their cars)

I did :)  The project specified a particular ferrite core that was 
unobtanium. A friend knew a guy who knew a guy...  At the time IBM spun 
off a lot of little cottage industries to handle stuff that they didn't 
want in house, in some cases because of paranoia about being a monopoly. 
Anyway the guy in question was operating his little ferrite business out 
of his garage. I drove down to his place in the outskirts of Kingston. As 
i recall he gave me the cores as a sample to avoid paperwork. And I was on 
my way to a CDI!

I've looked at enough of those projects that when I see some strange 
component or parts with values that aren't common I realize those were 
whatever the author had laying on his workbench at the time rather than 
the result of careful design.

I still have a collection of ferrite toroids, air variable caps, and so 
forth from when I was messing around with radios. You can bet if I design 
something it will be using them. Good luck finding the exact part in 2025.

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Thread

Decades-Old DIY Sampler Mystery Solved Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-10 00:58 +0000
  Re: Decades-Old DIY Sampler Mystery Solved Theo <theom+news@chiark.greenend.org.uk> - 2025-11-11 16:59 +0000
    Re: Decades-Old DIY Sampler Mystery Solved rbowman <bowman@montana.com> - 2025-11-11 18:24 +0000
      Re: Decades-Old DIY Sampler Mystery Solved Theo <theom+news@chiark.greenend.org.uk> - 2025-11-11 22:08 +0000
        Re: Decades-Old DIY Sampler Mystery Solved rbowman <bowman@montana.com> - 2025-11-12 02:51 +0000
          Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-12 10:52 +0100
            Re: Decades-Old DIY Sampler Mystery Solved Theo <theom+news@chiark.greenend.org.uk> - 2025-11-12 13:14 +0000
              Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-13 18:47 +0100
        Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-12 10:45 +0100
          Re: Decades-Old DIY Sampler Mystery Solved rbowman <bowman@montana.com> - 2025-11-12 18:47 +0000
  Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-12 10:46 +0100
    Re: Decades-Old DIY Sampler Mystery Solved rbowman <bowman@montana.com> - 2025-11-12 18:40 +0000
      Re: Decades-Old DIY Sampler Mystery Solved John Ames <commodorejohn@gmail.com> - 2025-11-12 11:00 -0800
        Re: Decades-Old DIY Sampler Mystery Solved scott@alfter.diespammersdie.us (Scott Alfter) - 2025-11-12 23:22 +0000
          Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-13 19:03 +0100
      Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-13 18:52 +0100
  Re: Decades-Old DIY Sampler Mystery Solved songbird <songbird@anthive.com> - 2025-11-14 23:43 -0500
    Re: Decades-Old DIY Sampler Mystery Solved "Carlos E.R." <robin_listas@es.invalid> - 2025-11-15 14:54 +0100

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