The Heathkit SA-5010 μMatic Memory Keyer 

Thanks for that thorough report. I bought my SA-5010 about 40 years ago and it still works perfectly!

Very cool keyer!

Hey Jeff, I've been enjoying your videos for many years. I miss the outro speech you used to do in earlier videos :)

I remember seeing these in catalogs for years but never knew that one paddle was for Dah, and one for dit... I just assumed they were to be grasped and pinched together to make a tone. neat!

I have the HD-10