T&L Publications

Yeah... but the need for a great manual site is always there... I mostly wanted to put the BAMA site out there...

The Boat Anchor Manual Archive (https://bama.edebris.com/manuals/motorola/r2600/) has this manual set... and a host of others...

(https://bama.edebris.com) for the site homepage...

One thing that nobody has mentioned yet is the concept of current limiting resistors used with LED's. In order to preserve the life of the LED(s), it is necessary to insert a resistor in series with the LED(s). The proper resistance is calculated using the formula R LIMIT = (V SOURCE - (V FORWARD * ...

Take a look at the SDP/SI website (https://sdp-si.com/) -- these folks have almost anything you could want in terms of minature or small motion transmission and control...

From what my grandson tells me, it's a "STEM Enrichment" class that is commercially offered but is arranged through the auspices of the regional technical high school that he attends. He has just completed his Junior year and is trying to boost his GPA to make college entry easier. His int...

Yeah... as I said in my last post... once I got him and the kit to my shop and showed him the difference in scope waveforms with the switch on and off, the light, so to speak, went on for him. I'm not so sure that this kit was such a great teaching tool for a Junior to Senior STEM class, as it does ...

Personally, I use ExpressPCB and its companion ExpressSchematic quite a bit. Once I have my schematic laid out and I know where I am going with the prototype, I then move over to ExpressPCB. Here is where the fun starts. You see, I have created in the ExpressPCB software (and would be happy to share...

OK guys -- I just got done with going through the "PIG Alarm Kit Student Guide" -- the manual he was given with the project kit. It is from a company I've never heard of and for which I cannot seem to find anything useful on the web -- STEM Labs Educational Systems Ltd. . Among other thing...

Hi folks... I'm a longtime reader and a subscriber with a long-running self-taught electronics hobby. One of my grandsons came to me with a question that I am having a hard time explaining to him so that he understands my answer. The schematic pictured below is the PSU for a summer-school extra-cred...

I too use my laser printer to print front and rear panel overlays for my projects. I use translucent self-adhesive sheets from Online Labels.com (https://www.onlinelabels.com/) for those chassis with white face panels, and I have also used white self-adhesive sheets such as Avery 6465 when the chass...