--== Audio ==-- 

Nº	Name		Choose language		PCB
1		25W Mosfet audio amplifier		-
2		Two way cross-over 3500 Hz
3		Mini-box 2W amplifier		-
4		50W amplifier		-
5		100W rms amplifier		-
6		22W audio amplifier		-
7		Low impedance microphone amplifier		-
8		Low pass filter - subwoofer filter
9		3 Line mixer
10		Digital volume control		-
11		Electronics attenuator		-
12		18W audio amplifier		-
13		200W audio amplifier		-
14		2x30W (stereo) amplifier with STK465
15		Auto volume control	-
16		10W Mini Audio Amplifier		-
17		100 W Audio Amplifier
18		Portable Headphone Amplifier		-
19		Speech Recorder		-
20		Precision Audio Millivoltmeter		-
21		Phono Preamplifier		-
22		Headphone Amplifier		-
23		Amplified Ear		-
24		Portable Microphone Preamplifier		-
25		Portable Mixer		-
26		Stereo Preamplifier with Bass-boost		-
27		10W Audio Amplifier with Bass-boost		-
28		Automatic Loudness Control		-
29		Three-Level Audio Power Indicator		-
30		Guitar Amplifier		-
31		60W Guitar Amplifier		-
32		60W Bass Amplifier		-
33		Digital Volume Control		-
34		FET Audio Mixer		-
35		Sound Level Meter		-
36		Stereo Tube Amplifier		-
37		3 Channel Spectrum Analyzer		-
38		Amplifier of acoustic frequencies with preamplifier
39		Bass-treble tone control circuit
40		Speaker Box Audio Amp		-
41		Motorola Hi-Fi power amplifier		-
42		2N3055 Power Amplifier		-
43		5,000W ultra-light, high-power amplifier, without switching-mode power supply		-
44		Tiny audio amplifier using LM386		-
45		Stereo tape head preamplifier using LA3161		-
46		20W Bridge Audio Amplifier		-
47		20W Audio Amplifier using LM1875		-
48		Active Bass & Tremble Controller		-
49		Three Channel Audio Mixer		-
50		Infrared cordless Headphone Amplifier		-
51		200W Audio Amplifier		-
52		5-Band Graphic Equalizer		-
53		600W Audio Amplifier		-
54		Portable Audio Amplifiers		-
55		Universal Preamplifier		-
56		Cheap Audio Booster		-