MindWare Perplexors Logic Puzzles Grid Perplexors Level A
Toys that Teach: Each story problem is solved using logic: kids use the clues from each scenario to solve the story’s results using process of....
Great for Standardized Tests: MindWare’s Grid Perplexor series is great practice for the kinds of logic-based, deductive reasoning story problems....
Challenging Puzzles: Each book in MindWare’s Grid Perplexors logic puzzle book series increases in difficulty. Level A is perfect practice for....
Individual or Group Use: Individual puzzles are great exercise for classroom use. They make fun activities for sharpening skills over summer vacation....
Includes: (1) Grid Perplexors: Level A book. Paperback.
Portable Outdoor Camping Infrared Propane Gas Heater Parabolic
Keep warm during your camping or ice fishing trip with this portable propane heater from Martin.
Adjustable Heat Control- It has simple controls, and you can turn it off, set it to low, medium or high at your discretion with the Off / Lo / Med / Hi-Intensity Control.
Works with a 1 lb (16.4 oz) propane bottle sold separately and a metal dish that helps to focus heat where you want it. Efficient portable local heat & economical to use awaits you.
Includes stable extendable cylinder base for greater stability! This beast produces 3,100 BTUs, and with a convenient carry handle, this heater is personal and portable..
Safety feature- include an auto shut-off fuel valve if the flame goes out, large paddle foot base for stability, and a safety grid..
-10dBm LO Power Consumption: Provides +24dBm third order intercept point, can achieve -10dBm LO power consumption, without high power LO drivers, there are no corresponding shielding and isolation problems, can improve system performance and reduce costs.
Single Power Supply: The mixer module is designed to be powered by a single power supply, and the RF, IF and LO ports have DC isolation capacitors for easy use.
10.3dB SSB Noise Figure at 70MHz: With the output amplifier and optimal source impedance of this mixer module, the SSB noise figure is 10.3dB at 70MHz. There is no insertion loss, no external duplexer, and no passive termination.
Low Distortion and Wide Dynamic Range: AD831 is a low distortion, wide dynamic range, single chip mixer, very practical.
Wide Application: Suitable for applications such as RF‑IF down conversion in HF and VHF receivers, second mixer in base stations, DC baseband conversion, quadrature modulation and demodulation, and Doppler shift detection in imaging.