<div dir="auto"><div>The one I recall from my youth was called Lectron. But it was not much more than individual components in 1 inch cube blocks which magnetically held themselves together.<div dir="auto"><br></div><div dir="auto">I think maybe your ideas are more advanced, with op-amps, oscillators, and maybe full counter/divider functions inside a block?</div><div dir="auto"><br></div><div dir="auto">Iain</div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 1, 2021, 03:15 Michael Chisena via Tacos <<a href="mailto:tacos@amrad.org">tacos@amrad.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Hi all,<br>
The question.<br>
<br>
In the old, and Im talking 60's or 70's ham magazines there was a vendor that sold little modules that could be hooked up to product various items.<br>
Individually not too complex but string enough of them together and you can make basic projects out of them.<br>
<br>
Any idea of what they are called? Product names, vendors, data along that line.<br>
Schematics of the various modules?<br>
<br>
Given all the neat modules on places like Amazon, was wondering if this could be a product again.<br>
<br>
One of my x bosses made a converter module that took an ordinary vehicle AM/FM and turned it into a multi mode AM stereo receiver with pilot detection.<br>
<br>
Been working on some projects.<br>
<br>
This is my second batch of Type 538 camera batteries as a work in progress.<br>
<a href="https://imgur.com/gallery/dVlXKHK" rel="noreferrer noreferrer" target="_blank">https://imgur.com/gallery/dVlXKHK</a><br>
<br>
Been playing with an idea of making a power bank for a laptop I have here. <br>
It would use hot swapable power tool batteries.<br>
So far the prototype has been kinda neat.<br>
<br>
Share a thought as time permits.<br>
Thanks in advance.<br>
Mike<br>
<br>
<br>
Michael F. Chisena KA2ZEV@Yahoo.com Notice the new phone number..... 703 344 8864<br>
"You are, what you do, when it counts" The Masso<br>
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</blockquote></div></div></div>