Articles & Datasheets

Synchronous Detectors Technical article about the superiority of synchronous detection over envelope detection.

Independent Sideband Technical article about the virtues of transmittion and reception of an Independent Sideband system.

AM Stereo Equations System equations for the 5 competing systems.

The Original Motorola® C-QuAM® Patent 4,218,586

FCC Broadcast Standards for AM Stereo.

Resistor Color Codes.

Amidon Jan 2001 Inductive Component Catalog with extensive graphs and information for iron powder and ferrite cores.

Magazine Articles

RE77, PE78, PE80 AM Stereo articles from Radio-Electronics Dec'77, Popular-Electronics Dec'78, and Popular-Electronics Aug'80.

Radio Electronics Oct'76 AM Stereo Article

TM-152

Realistic TM-152 Schematic.

External Antenna Torroid replacement for TM-152.

LA1245 Sanyo RF/Mix/IF/Det Chip used in TM-152.


Motorola® C-QUAM® Decoding Chips & Associated Datasheets

MC13020 Motorola C-QUAM AM Stereo decoder.

AN-HK-07 Application Note for the MC13021 & MC13041 support chips for the MC13020.

MC13022 C-QUAM Advanced Medium Voltage AM Stereo Decoder.

MC13024 Low Voltage Motorola C-QUAM Am Stereo Receiver.

MC13025 ETR Front End for C-QUAM AM Stereo.

MC13027 & MC13122 Motorola C-QUAM AMAX Stereo Chipset.

MC13028 Advanced Wide Voltage IF and C-QUAM AM Stereo Decoder.

MC13029 Advanced Medium Voltage IF and C-QUAM AM Stereo Decoder with FM Amplifier and AM/FM Internal Switch.

MC13030 Dual Conversion AM Receiver.

MC1496 Gilbert Cell Double Balanced Modulator, Mixer, and Detector.

NEC µPA101 Gilbert Cell.

Intersil HFA3101 Gilbert Cell.

Philips SE602A & NE602A Gilbert Cell Double-Balanced Mixer & Oscillator.

LM1981 AM Stereo Decoder for Magnavox PMX. Application Notes White Paper

Kahn Potomac Receiver Schematic

Ceramic Filters

Auris LT450U LT450W iLTM450U LTM450W LTa10 ZTA

muRata P-03-A 1991 Cat. CeraFil P50E Filters

TOKO LFC

Tuning Capacitors

Tru||Cap

Op-Amps

LM4562 TI (National Semiconductor) Dual Low Noise, High-Performance, High-Fidelity Audio.

OPAx134 Burr Brown SoundPLUS™ Single, Dual, Quad, FET Input, Low Noise, High Performance Audio.

OPA2604 Burr Brown FET Input Low Distortion.

OPAx277 TI (Burr Brown) High Precision.

LT105[13] Linear Dual & Quad Precision Zero-Drift.

TLC2202 TI Low Noise Precision CMOS.

TLC227x TI Rail-To-Rail CMOS.

TL06x TI Low Power J-FET Input Audio.

TL07x TI Low Noise High Performance J-FET Input Audio.

Low Voltage Single Supply

MC34074 Motorola High Performance, Single, Dual, Quad.

MC33174 Motorola Low Power, Single, Dual, Quad.

LM324 National Semiconductor Low Power, Quad.

LM358 National Semiconductor Low Power, Dual.

LM393 Motorola (National Semiconductor) Low Power, Dual Comparator.

LM339 Motorola (National Semiconductor) Low Power, Quad Comparator.

Miscellaneus

TLC555 TI CMOS 555 Timer.

LA1245 Sanyo RF/Mix/IF/Det Chip Chip for Mechanical & Electronic Tuning.

LA1265 Sanyo AM/FM RF/Mix/IF/Det Chip for Electronic Tuning.

HA1197 Hitachi AM RF/Mix/IF/Det Chip for Mechanical Tuning.

LM1894 National Semiconductor "Dynamic Noise Reduction" DNR® Audio Variable Low Pass Filter.

SSM2200 DYNAFEX™ Noise Reduction System ─ Variable Low Pass Filter & Expander

SSM2000 HUSH® Stereo Noise Reduction System ─ Variable Low Pass Filter & Expander

MC1594 Motorola Linear 4 Quadrant Multiplier.

PerkinElmer Opto-Electronic Catalog

Transistors

2N4401 On Semiconductor Fairchild Rohm

2N4403 On Semiconductor Fairchild Rohm

2N2222A On Semiconductor Rohm

2N2907A Motorola On Semiconductor Philips

Quad 2222A Fairchild

Quad 2907A Farichild

2N3904 On Semiconductor Fairchild Rohm Renesas

2N3906 On Semiconductor Fairchild Rohm

Quad 3904 Motorola On Semiconductor Fairchild

Quad 3906 On Semiconductor Fairchild

2N555[01] Motorola Fairchild Philips National Semicondictor ST

2N540[01] On Semiconductor

MPSH10 Motorola Fairchild Philips

MPSH81 Fairchild

MPSA18 Motorola On Semiconductor Fairchild

MPSA64 On Semiconductor Fairchild


Audio Filters Here are some audio filters, high pass, low pass, 2nd & 3rd order, bandpass filters, notch filters, phono preamp with rumble filter, and mic preamp.