Update to March Madness: April Sadness

I did receive the stuff I bought on ebay mentioned here:

https://wb9kzy.blogspot.com/2025/03/march-madness.html

Basically just someone's junk box but kinda like getting a Christmas present - there is room for both delight and regret.  

The Memkey ?  turns out to be this:

https://www.digikey.com.mx/en/products/detail/parallax-inc/27963/368098

here is the manual:

https://www.mouser.com/datasheet/2/321/memkey-31235.pdf

Yawn, it's a keyboard encoder board - no Morse code within a zillion miles ! :(

What is this dealie:

It's a remote doorbell ringer - might be reworked into a small amplifier ?

And finally I was hoping that this kit might be buildable:

Nope, although it does have some of the parts the PLCC brain is missing, also the relays.  Too bad, the case is nice, sorta like a Ten-Tec clamshell.

We'll revisit this junkbox again, hopefully finding more useful items.


Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm