Search found 10 matches

by cpprioli
Fri Jul 02, 2021 7:26 pm
Forum: General Discussion
Topic: Trying to find / download a service manual...
Replies: 10
Views: 6454

Re: Trying to find / download a service manual...

Yeah... but the need for a great manual site is always there... I mostly wanted to put the BAMA site out there...
by cpprioli
Thu Jul 01, 2021 6:23 pm
Forum: General Discussion
Topic: Trying to find / download a service manual...
Replies: 10
Views: 6454

Re: Trying to find / download a service manual...

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...
by cpprioli
Thu Jul 01, 2021 1:11 pm
Forum: Reader Projects
Topic: how do you keep I at V
Replies: 6
Views: 24304

Re: how do you keep I at V

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 * ...
by cpprioli
Wed Jun 30, 2021 7:34 am
Forum: Reader Projects
Topic: Reel for lowering a sensor
Replies: 8
Views: 15720

Re: Reel for lowering a sensor

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...
by cpprioli
Wed Jun 30, 2021 6:49 am
Forum: General Discussion
Topic: How to Explain It...
Replies: 10
Views: 3486

Re: How to Explain It...

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 intent is to ...
by cpprioli
Tue Jun 29, 2021 4:17 pm
Forum: General Discussion
Topic: How to Explain It...
Replies: 10
Views: 3486

Re: How to Explain It...

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 ...
by cpprioli
Tue Jun 29, 2021 9:02 am
Forum: Reader Projects
Topic: How Do You Create Stripboard Layout in Microsoft Word?
Replies: 1
Views: 5782

Re: How Do You Create Stripboard Layout in Microsoft Word?

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...
by cpprioli
Sun Jun 27, 2021 11:49 am
Forum: General Discussion
Topic: How to Explain It...
Replies: 10
Views: 3486

Re: How to Explain It...

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 things, there i...
by cpprioli
Sat Jun 26, 2021 2:47 pm
Forum: General Discussion
Topic: How to Explain It...
Replies: 10
Views: 3486

How to Explain It...

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...
by cpprioli
Sat Jun 26, 2021 12:30 pm
Forum: Projects & Kits
Topic: Front panel design article
Replies: 1
Views: 7343

Re: Front panel design article

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...