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- Bypass Caps & Transistors
- Capacitor over feedback Resistor
- input/output capacitor uF question...
- the best 12v amp design/project
- Help a noob!
- 1W SE Class A – Powerful Headphone or Weak Power Amp
- A prevent jitter scheme of relay attenuator
- Need help trouble shooting my BK ST 140
- Cloning the Luxman IC known as DML-02
- Krell KSA/KMA input stage mods
- crazy idle current compensation method?
- Silicon Grease Toxicity
- germanium amplifier
- Help with trouble shooting
- Adcom gfa-5400 mods?
- high vac at speaker terminals rotel rb1070
- What is sucking in this wiring?
- Damping factor can equate to less bass ?
- Crown 1400 CSL
- Fully differential 100W amplifier
- source for 4-pole capacitor?
- Meridian MCA-1 amplifier
- BAT Vk-500 schematics info??
- Help with repairing Rotel RA-1062
- Copper tracks conner angles
- Restoring a JBL SA-600
- "Vibrating" faceplate (actually has current) on vintage amplifier
- RIAA + IEC
- Rod Elliot P27 PCB Layout.
- Amplifier with 220 input voltage vs 230 ?
- Parasound HCA-2200 problem - need some help
- Onkyo 805 - no sub output
- Celestion truvox 1020
- What to do with 4 little accurian amps??
- My amp is clipping with new speakers
- Is Audio GD C500 unity voltage gain.
- Selim's JLH Amp
- Someone able to ID some parts for me?
- New super pair?
- Which to choose?
- Connecting Powered PC Speakers To TV Headphone Jack, Need Amp - Help Please
- Differential pair questions
- weird DC offset at HF driving passive filter
- Yamaha c-80
- All FET JLH Class A
- Simpson-Sears Model RE-1205 schematic needed
- DC offset adjustment add-on
- Really clean medium power amp wanted
- AV1000 building
- Marantz PM-32
- Zen problem
- Newbie amp project power supply noise
- VINTAGE AMPLIFIERS ( The ultimate thread )
- Hafler 9505 amp Help
- coyote call ideas
- Need service manual for Accuphase E-303
- kenwood graphic equalizer GE 52
- Some help or a SM for PM-84 MK II
- Tivoli Model One - Internal fuse?
- Accuphase P600 problem
- Help with waveform on rails - looks unregulated
- Cyrus 3 help needed
- Help on op amps
- My HV opamp - Working suspiciously well
- Trying to Find MOSFETS D1975, B1317. HELP!
- Oppo 93NE to Marantz receiver.
- Sears RE-1205 AM/FM resever
- Darlington question
- Would you calculate and re-draw the circuit overcurrent protection ?
- New Class Aamplifier P18W1R
- Capacitor replacement / hiss advice
- Musical Fidelity P170 Bias
- Aaron Millenium 3, outputs tranzistors & quiescent current
- Pls Help - Sumo Polaris II
- Small Amp with 2 Inputs or More
- 2.1 Receivers Yamaha R-S500 vs. Harman Kardon HK-3490
- Need some help with Class A JLH power parameters
- Parasound ( John Curl ) 1206 upgrades?
- The Amp I use for my bass units
- Quad 405 linear PSU replacement with switcher.
- Luxman KV-105 crackling on one channel
- Measuring attack/release time of a compressor/limiter
- HAL SYMFET
- Transmitting from stereo to guitar amp.
- double sided thermal tape?
- Musical fidelity A100
- Upgrading/repairing vintage amps
- RIAA?
- Choke loaded MOSFET in circlotron??
- Help with DC on volume pot
- NIKKO Alpha 230 with a fan on top
- Output power of an average stereo system?
- How much power is the average Stereo?
- Soundcraftsmen A400 Schematic?
- help with cs800 peavey getting 6 volts on output
- Audionet AMP 1 idle current
- Accuphase p600
- Class H switching
- Sansui BA 5000 Loud pop at turn on / off
- New Project - Hybrid Amplifier High Quality
- arcam alpha 8 problem
- Playmaster Sixty-Sixty Stereo Amplifier SCHEMATIC
- looking for class AB amplifier schematic
- 1.4kW; is this crazy?
- Bias Adjustment on Bose 1800 Amplifier
- Two Amp Fire Balls... Please Tell Me Why
- No global feedback preamplifier
- x5 preamp circuit
- Simple Circlotron with power Mosfets
- Amp hum when RCA cable is connected
- Audio/video sync. Little help please?
- Class i and siblings
- Integrated Amp repair / conversion
- 2SA1102 vs 2SA1104 with 2SC2577
- ST151 100W AMP
- Cheating with microphone calibration
- DIY Amp
- PASS ALEPH 0s Capacitors replacement
- Marantz PM-440 service manual needed please!
- solid state ...forum people
- KSA 250 HELP!!!
- GFA-535 Brown gunk on output board
- Yet another broken NAD 3020 thread
- OCM 500 power amp - I need a copy of owner's manual...
- Need schematic KEF 25B sub amp SP2298
- nad 3020 overhaul/mod questions
- what opamp for lowpass filter?
- Non-complementary class AB linearized amp
- Speaker Protection Board Input Voltage Handling
- Power supply for balanced input stereo amplifier
- Transistor role in amplifier ? Properties
- RG59 for interconnect ( disscusion )
- DIY IMD Analyzer
- sprint pcb software
- 20W Blameless Class A
- Replacement Transformer for Quad 405
- Can anyone ID this amp? (there's no prize)
- Help finding service manual for cambridge 640r
- Sansui AU555
- hep, Parasound pfet 900II
- Ribbon poweramplifier
- Are you interested to improve cheap amplified speaker?
- Optimos - My Version
- APSA - The Analog Sound Processing Amplifier
- Cyrus 2 No balance
- Yamaha M60 modifications?
- Replacement for Motorola MPS-U10?
- 20KW POWER AMP SCHEMATIC
- Bi-amping with 2 integrated amplifiers
- Harmon Kardon HK560 repair
- Bose 1800: DC Offset Issues
- Power mosfet DIY topologies of tube ampli Single-ended
- Discrete or IC regulation power supply
- Federmann preamplifier
- ATI 1502 two-channel stereo Power amplifier
- Conditioning, Hipotting (Hi-Pot) Film Capacitors
- Updating Leach FET preamp: New transistors?????
- NAP90 Distortion Problem
- HK 770 pwr amp input caps - Replacement suggestions
- Velodyne ct-80 project
- Musical Fidelity transistors SM8605 SM8610
- Help understanding amplifier diagram.
- Improving Technics SU-8080
- Power Amp PCB Power distribution
- Parasound amps...
- Input impedance-Balanced operation
- Amplifiers: Building Vs Buying
- Amp for 16 ohm headphones (MDR-EX71SL)?
- Rockford boosted rail amplifier
- Questions about Transistors with high beta (hfe) up to 3000 without Darl.-Topology
- High Power Amplifier
- Powering Opamps???
- Fixing the dead Luxman R-117: need some help.
- Clean amplifier P8W4R, P4W8R
- [NEWBIE]Amplifier Design[NEWBIE]
- CM Labs CC-2 Preamp Repair/Upgrade
- SWTPC Repair/Upgrade
- Levinson ML-2 Cap Upgrade Audio- and Regulator card
- Turn on pre driver stage first or output stage first??
- Amplifier mains hum help
- NAD C372 Leaking Capacitors???? Help Please!
- Crossover distortion in push-pull
- Please recommend an amazing amp for beginner :)
- Front End DC Operating Point Current Magnitudes
- upc1237 supply question
- recommended 200-300watts / channel amplifier for HT?
- Krell Schematics for FPB series available on CD-ROM
- Modding Dayens Ampino
- Cambridge Audio P55 Schematic
- Mr Gromer LNA-1 opamp - 2SC2239BL equivalent
- Help needed for Adcom gfp-1A preamp
- Inkel MA920 CIRCUIT
- No heat sinks!
- HH electronic V-S Bassamp, diagram wanted
- Amplifier Transistor Replacement Help
- Part sub for MOSFET gurus
- Nakamichi SR-4A Idle Current Procedure
- Replacement Volume Control For Marantz PM 66 KI
- RCA Power Transistors BD750, BD751, BD550, BD550A, BD550B Data Sheet wanted
- Can a heatsink be too big?
- MARANTZ 2500 250w/ch receiver
- Threshold 800A amplifier versions
- circuit diagram for cambridge A70 power amp
- Self-cascoding, a tool for creating ultra high voltage building blocks:
- CC-CB cascade variations
- cheap big binding posts for metal chassis
- Luxman LV103u replacing output FET's
- Luxman L85V - Replace 2SA679-NTE280/81
- crow d150
- Behringer BXL900 Schematic needeed!
- sony ta-fb940r qs,left channel hardly there.
- HAL PREAMPLIFIERS
- Ebay kit diamond differential power amp
- High input impedance BJT preamplifer
- How to Bypass Relay on Sub Amp?
- Bandpass filters in audio circuit of communications receiver?
- Sony TA-313 vs Sony TA-F4A........which one???
- Help me identify the damage. Tivoli Model 1
- Mission Cyrus One - Volume Help Needed
- Troubleshooting a Denon 3802
- Hello! a few questions on the JLH 1969
- Buying a NAD 3020 in the seventies
- Sony STR-DE897 receiver - No power
- op-amp what voltage to use?
- Buzz diminishing with raised volume?
- Rod Elliot P3A Layout - Critics
- Another free PCB project: JLH headphone amplifier
- should i have a dc voltage across my spring rev. input?
- Interesting Site
- yamaha CA-510 amplifier power supply issue
- Hill Audio Multimix
- Diagnosing & Fixing a Ground Problem
- james bongiorno Amp. question
- Abnormal Clipping Need Help~~~
- Anyone else using an older flagship receiver for active amplification?
- RCA stav - 3990 powering off
- help:schematics for a Denon SA-3350 int amp
- Leak Stereo 30 Overhaul... Worth it?
- Solid State Amplifier - Overview of all Canadian Companies wanted
- Linear Audio Inc. - currently Website wanted
- Arcam Alpha 9p blowing fuse
- Burnt power transistor
- SE Mosfet line stage with transformer output
- Please help me troubleshoot Niles Audio SI-1230 12 channel amp
- Help A Dummy: in simple language please.
- don't try this AMP at home
- Resistor Identification Help
- Suggestions to replace ?
- composit amplifier NE5534 swap
- JFET Phono Pre-amp clipping