Electronics Forum | Tue Sep 05 10:14:00 EDT 2017 | jdengler
We have a 1997 Heller 932BH that needs some work. The problem is the manuals have gone missing. Would anyone have any manuals available? Electrical diagram is of the most important currently but I would like to have everything if possible. Thanks
Electronics Forum | Tue Sep 05 14:40:54 EDT 2017 | rgduval
Give Heller Customer Service a call. They've always been great about supporting older machines, even third party machines! Cheers, ..rob
Electronics Forum | Thu Sep 07 10:18:24 EDT 2017 | capse
Chrys Shea has published extensively on stencil materials, coatings and paste release mechanisms. Many of the papers are available to download on her website. Just search for Shea Engineering Services. I've worked with Chrys in the past, she is defin
Electronics Forum | Fri Sep 08 03:37:54 EDT 2017 | m_imtiaz
there any problem if Lead Free finish PCB being process using Leaded Solder Paste...? It is totally related to the manufacturing process and quality of joint, not to any specific compliance issues related to the European Union, China or any. Regards
Electronics Forum | Fri Sep 08 08:32:27 EDT 2017 | tekxplore
How many types of Voltage Power Supply Modules and how it is work please tell me in details. http://www.tekxplore.com/high-voltage-electronics/
Electronics Forum | Fri Sep 08 13:45:47 EDT 2017 | rvines1
Is the industry really moving toward unmarked chip resistors? I've been seeing a lot of unmarked 0603 resistors lately, and when I check the data sheets, all their photos are of marked parts, and they don't say anything about it.
Electronics Forum | Mon Sep 11 12:03:25 EDT 2017 | emeto
Absolutely - it is probably cheaper! Soon they might start doing it with the transistors, diodes and ICs too. Why would you need a sophisticated AOI machine then? What would quality control look for? It is annoying, considering the amount of differen
Electronics Forum | Mon Sep 11 12:37:03 EDT 2017 | rvines1
Our AOI machines have actually caught wrong resistors before. A reel gets swapped, a vendor sends a wrong part, things happen. To think that we can't rely on resistor markings anymore, that just sucks.
Electronics Forum | Fri Sep 15 09:14:55 EDT 2017 | dleeper
From my perspective, I like marked parts because I can use AOI to verify the correct parts are being placed in production. If an operator is going to load the wrong reel, I prefer to find out on the first PCB rather than after 5000 wrong parts have b
Electronics Forum | Mon Oct 30 08:47:39 EDT 2017 | philc
As an AOI operator as well, I can see your point, but what about 0402 parts, and all chip capacitors? These parts are not marked, but I presume you accept those? In relaity, an unmarked resistor is no different to any cap, and you don't worry about t
