Picking resistors with readable color codes was part of speccing the component back in the thru-holes days. Yes there were these cheap cylindrical brown ones that were almost impossible to read. We used the peanut shaped beige ones which were readable and the 1% resistors had color codes, too. The 1% had an extra color line. I use to train assemblers to read the color codes and use them to inspect boards. Color codes were very useful. Even if they didn't read the codes, comparing to a known good board, a wrong color component was visibly different. Try that with tiny printing.
Exactly -some of the paints are so unclear -red, orange brown can be hard to distinguish. Sometimes the brown band to designate 1% is the same width as all the other bands - so which end do you read from? And if the body colour is other than neutral, be careful - the body colour can mix with the bands to make them undecipherable.
Another PO (no, not Purchase Order) is those thru-hole resistors printed with text - when reverse engineering a board, the damn value is always facing DOWN against the pcb. Same with thruhole caps and diodes - ARRRRGGGHH!
@Max "the colored bands on the resistors served to distinguish their values,"
Speak for yourself!
By that I mean what if you can;t distinguish resistor colors? In particular ,red, green, brown. I can't and haven't for many years. Even at my first job, I always used 1% resistors because the values were printed with numbers.
I once write a piece called "Help me read this resistor." Perahps it's time to dig it up and post it here.
I just received this from the Managing Director at Yageo:
We are in process with Digieky to make all their inventory in "Marking Product". Then you just order as usual. However this process is still running and we can not make a digital swtich. Please understand.
I think I'll steer clear of their product for a while until you folks use up all of the unmarked stuff. Whoever uses the last unmarked resistor, please give me a heads-up!
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.