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Audio Amplifiers
Audio Amplifiers
Car Amplifiers:
Large capacitor charge "controllers" (Car Audio)
Switch-mode Power Supply for a Tube Car Amplifier
Inside Story: Audison LR604XR amplifier (Car Audio)
Power Amplifiers:
The DPA 220 schematic
The DPA 440 schematic
The DPA 880 schematic
Two Transistors Audio Amplifier
10 Watt Audio Amplifier
20 Watt Power Amplifier
22 Watt Stereo Amplifier
25 Watt MosFet Audio Amplifier
50 Watt Amplifier
55W (Originally 75W) Power Amplifier
300W Subwoofer Power Amplifier
Updated 60-100W Hi-Fi Power Amplifier
22 Watt Audio Amplifier
18 Watt Audio Amplifier
10 Watt Mini Audio Amplifier
Amplifier 2x30W with STK465
Mini-box 2W Amplifier
Motorola Hi-Fi power amplifier
60W Bass Amplifier
100W Audio Amplifier
2 Watt Audio Amplifier
8 Watt Amplifier
Quadraphonic Amplifier
15 Watt Amplifier
Class-A//AB Amplifier 100W 4ohm
Tube Amplifiers:
Stereo Tube Amplifier
Kitchen DHT 28.11.2004. IT-coupled 6C45P-6B4G PP amplifier. Fixed bias on both stages
Mamont I - transformerless tube power amplifier (based on Atma-Sphere M60)
Single-ended driver for a Circlotron OTL
Baby of Camel: All-directly-Heated Pushpull Amp - Spy Photos
Klauskorrektor I: First phono stage
Klauskorrektor II
Tube opamps: Photos of an antique analogue computer unit (Soviet, naturally!)
Other Amplifiers:
Guitar Amplifier
60W Guitar Amplifier
Portable Headphone Amplifier
Low impedance microphone amplifier
Low pass filter - Subwoofer
Portable Mixer
Phono Preamplifier
3 Line Mixer
FET Audio Mixer
Audio Line Driver
The Big-E Stereo Parabolic Microphone
Stereo Audio Isolator
Guitar Reverb Effect Version 2
Guitar Reverb Pedal
Headphone Amplifier
Voice-Over Circuit
Miscellaneous:
Audio Indicator
Voltage Controlled Panner
Panner Waveform Generator
Audio VU Meter
Audio Level Meter
The Audio / Video Distribution Amplifier
VU Stereo Meter
Stereo Mixer
Personal Stereo Amplifier
Underwater microphone
Articles:
Klausmobile Tube Tester
Battery heaters in a tube amplifier: A simple battery switch with undervoltage protection
Inside Story: Audio Refinement Complete integrated amplifier
Tip: Breadboarding chassis idea
AN12: Monitoring AC heater currents in tube amplifier
AN13: Delay timers, Power-on sequencing using TL431 in comparator mode
MTX250 Car Amplifier: Autoformer Switch-Mode Power Supply
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