Gravitational waves help us understand black-hole weight gain

Gravitational waves help us understand black-hole weight gain

Quantum particles find safety in numbers

Quantum particles find safety in numbers

Velleman's K8018B 3D LED Cube 5x5x5

The Velleman's 3D LED Cube has 125 LED's that is controlled by two STP16CP05 integrated circuits, of which, are surface mounted devices. Other than mounting the two SMD IC, the 125 LED's proves to be the most tedious work. Velleman has a great video to show how to assemble the LED's properly . The Light Cube is programmable via USB A-male to B-male cable and software from Velleman's product support. The Light Cube comes with no USB cable, and no 9v power adapter. Below is a short video demonstrating the Light Cube. 

Demonstration of the Ramsey's SR2C and AA7B with Kitsrus 1 watt Mono Power Amplifier

This is the demonstration of the SR2C, AA7B, and Mono Power Amplifier. In this video, I try to adjust the transformers (T1 and T2) to tune into an AM frequency.

Ramsey's AA7B Active Antenna Kit

The AA7B is an antenna amplifier which will amplify radio frequency signals (HF, VHF, UHF). I'll use the AA7B with the SR2C in a future post for demonstration. The AA7B is connected by coaxial cable to the receiver. In addition, the AA7B can be powered by a 9V internal battery of external power supply. The AA7B is for boosting reception only; transmitting RF into the AA7B will damage the unit. 

Ramsey's SR2C a 4-19.5 MHz Shortwave Radio

The Ramsey's SR2C is a single-conversion superheterodyne receiver designed for listening to AM broadcasting stations in the range of 4-19.5 MHZ. The SR2C does not come with an antenna or external speaker. In a future post, I will demonstrate the SRC2. 

1 watt Mono Power Amplifier

This is Kit 27 from Kitsrus a 1 Watt Mono Power (audio) Amplifier featuring Philips integrated circuit TDA 7052. I built this kit to modify a shortwave radio that will be featured in a future post the Ramsey's SR2C. This amplifier uses a 6-12 volt direct current power supply to drive up to a 8 ohms speaker. In the picture, I have a 8 ohm speaker, a 12VDC battery pack, and a mono plug attached; these items are add-ons and do not come with the kit.