SoftFelix, Частотомер добавлю.
По поводу осциллографа интересен OURDSO Sporing 2011 (или подобный) на FPGA с такими параметрами:
Number of channels: 2 channels
Analog bandwidth: 30MHz
Sampling rate: Dual channels, each 125 MSPS
Vertical accuracy: 8bits
Memory depth: at least 8KB per channel
Voltage sensitivity: 10mv/div ~ 5v/div (1:1 Probe)
Timebase range: 100ns/div ~ 5s/div
FFT functions: 1024 point FFT
XY function
Trigger mode: single, normal, auto
Adjustable trigger voltage and advanced trigger functionality
High-resolution 480 * 320/3.5 inch LCD display
Operating voltage: 6.2V ~ 9V, 8V nominal
куча фото здесь