Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
Caleb Kraft
User Rank
Author
Re: Waxed paper parts
Caleb Kraft   3/27/2014 10:52:47 AM
NO RATINGS
@zeeglen, I have no idea why they would be wax covered. I was hoping someone would give a valid explanation in the comments. I'm guessing it is shielding of some type, but is wax paper that effective?

Caleb Kraft
User Rank
Author
Re: No Mirror?
Caleb Kraft   3/27/2014 10:51:38 AM
NO RATINGS
I'm not sure what you're referring to, but now I'm really curious!

Caleb Kraft
User Rank
Author
Re: Waxed paper parts
Caleb Kraft   3/27/2014 10:50:49 AM
NO RATINGS
I can understand your confusion. This is not a typical thing to see. Usually, only capacitors would carry that waxy coating. however, in this case, those are resistors. You can see it in the schematic as well as just figure it out by looking at what the mode selector that they are attached to does. it changes the resistance!

Wnderer
User Rank
Author
No Mirror?
Wnderer   3/27/2014 10:23:26 AM
NO RATINGS
I think it's strange that it doesn't have a mirror. I thought even the cheap ones had a mirror to deal with parallax.

zeeglen
User Rank
Author
Re: Waxed paper parts
zeeglen   3/27/2014 9:32:49 AM
NO RATINGS
@ Caleb - Why wax sleeves over the resistors?  Might this be intended as an indication of overheating if a user applies a higher-than-rated voltage, or any voltage with the function switch set to "ohms"?

@ molear - looking at the schematic and parts list these are 1% resistors, there are only 3 wax paper caps listed.

molear
User Rank
Author
Waxed paper parts
molear   3/27/2014 7:09:15 AM
NO RATINGS
The parts in waxed paper are NOT resistors.  Those would be capacitors, and I would be very careful using that device.  The old paper and wax capacitors can go bad.  I've had one explode and blast scraps of burning paper around the room.

<<   <   Page 2 / 2


Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

March 28 is Arduino Day -- Break Out the Party Hats!
Max Maxfield
6 comments
Well, here's a bit of a conundrum. I just received an email from my chum David Ashton who hails from the "Unfinished Continent" Down Under. David's message was short and sweet; all he said ...

Bernard Cole

A Book For All Reasons
Bernard Cole
1 Comment
Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...

Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
5 comments
Like many of you, I was saddened to hear the news of Leonard Nimoy's death. His Star Trek character Mr. Spock was an inspiration to many of us who entered technical fields.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll