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There are a number of cheap DDS signal generators on eBay.

Rigol's DSA 815-TG spectrum analyzer is a great deal for $1500.

Here's a video review, and here's a written review.

GW Instek's GDS-1052-U is a $300 bench scope.

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And here's a video about it I made, plus another. Philco's 7019 65-year-old scope is pretty awful but a ton of fun.Gabotronics Xprotolab tiny little $49 mixed signal scope.Siglent's SDS2000X series oscilloscopes.Tektronix's MDO4104 mixed domain scope (i.e., it has a spectrum analyzer as well).Tektronix's MSO2024 mixed signal scope.Agilent's MSO-X 3054A mixed signal scope.Siglent's SDS1204X-E four channel, 200 MHz scope.

Keysight's DSOX1204G 200 MHz, 4-channel scope.Siglent's SDS5000X series of scopes, 2 to 4 channels, 350 MHz to 1 GHz.Scopes, logic analyzers, spectrum analyzers and signal generators:.Jack has written some extensive reviews of test equipment: Reverse Engineering/Disassembling Tools.Journaling/Documenting/Flowcharting Tools.Test Equipment (scopes, logic analyzers, etc.).Feel free to submit your own reviews to Suggestion: Subscribe to my free newsletter which has tool reviews in almost every issue. Here's thoughts from a number of engineers. Embedded developers - both those doing hardware work and those crafting firmware - use a wide range of tools, but it can be awfully hard to distinguish the good from the ugly. Normally, you'd enter the contest via this link. The giveaway is on holiday for the summer.

Speedcrunch delete variable mac os x#

Microsoft Windows NT/2000/XP/Vista or Linux (32- and 64-bit) or Mac OS X 10.3/10.4/10.For novel ideas about building embedded systems (both hardware and firmware), join the 40,000+ engineers who subscribe to The Embedded Muse, a free biweekly newsletter.What more can anyone ask for? You can download SpeedCrunch from the following link:

Speedcrunch delete variable portable#

To top it all off, SpeedCrunch works on Windows, Linux, Mac OX and comes in a portable version. There are also a few more features I did not talk about like the ability to save/load sessions, work in radians or decimals, etc. In addition to the already mentioned, SpeedCrunch supports up to 50 decimal places and is extremely keyboard friendly (you can type everything in and use shortcuts if you wish – never have to even touch your mouse). Built in constants and a simple “math book” for some popular equations.Color coded syntax and parenthesis highlighting.The ability to create, use, and store unlimited variables.You can recall any computations or results from the history by simply clicking on them. The ability to store and display the calculations you have already finished (keep a history).The ability to see what calculations you are doing.So let me explain why SpeedCrunch is superior to Windows Calculator:

For those that have never used a graphing calculator, my previous statement is probably meaningless. The best way I can describe SpeedCrunch is to say SpeedCrunch is a graphing calculator while Windows Calculator is on the levels of a standard/scientific calculator. Well good thing there is an open source Windows Calculator replacement called SpeedCrunch (thx Liam!): One of my biggest grips with Windows Calculator is that you can’t see the computations you did before or the ones you are doing now. However it is an annoying piece of **** to use. Windows Calculator provides you with a fair amount of functionality in terms of mathematical computational needs.