View Full Version : Solid State
- the stupid question series: AC coupled balanced/unbalanced output, servo useful?
- Yamaha BX-1 monoblock
- Ratio of power into load and driver transistor
- AV800 again :D
- Searching 2 matched pairs 2sa1492 and 2sc3856
- DM/CM RFI filter on instrumentation opamp input
- GAS Thaedra/Thoebe phono stage adjust
- Running a tube preamp into a solid state preamp?
- Parasound HCA-1000A help needed
- Parallel output transistor matching
- BGR Blazer X10 1000W RMS Monoblock Power Amplifier
- P101 amp troubleshooting
- Question on opamps/mixing desks and production of CD's/records.
- Solid Solid State Power Amplifier
- Cleaning Switch in High-End Sony Preamp
- Roland SPA-240 amplifier
- JFET choice
- TOA A-1121 schematic
- PC simulation - what do you use?
- Help with this amp
- Bargraph and clip LED's
- Is this possible
- Best of eBays chinese offerings?
- LT spice DC .op function
- denon pma530 amp
- Adcom GFA 5500
- Simple Preamp with tone control problem.
- Analogue circuit analysis
- 5W Class A transistorized amp
- Zenith B935 console radio/record player
- help with repair of DC300A series II
- Heatsink insulator
- Stability of 2SK170 at small currents
- Electronic expert in Hereford wanted
- signal and chassis ground wiring with RCA and XLR
- CCS acting strange. What's wrong?
- Smouldering Amp, Help pls
- Power amp fault-any suggestions please?
- marantz pm94
- SS overheating? Can I mod it?
- Intel CPU heatsinks as power output transistor heatsinks?
- Simple 200 watt complimentary FET amplifier (possibly tube driver?)
- Zener diode test with dvom
- LTSpice tutorial
- Re: Sansui 3000A vs. Yamaha CA 1000 II Integrated Amp
- Signal path caps........
- amplifier kit in USA
- Electrocompaniet AW250 needs shematics or idea!
- Mark Levinson 336 adjustment problem
- HAFLER 9505: 110V rewirable for 220V?
- Who knows this amplifier
- The Black Box, Smith Cell
- diy heatsinks - please give some advices
- Problems in Onkyo receiver
- 'Best' amp concept for headphones w/ impedance ~8ohm
- Problems in Onkyo receiver
- RCA 40409 & 40410 Transistors
- Amplifier AVR200 seems to have a problem
- Bias stabilty tests.
- Baxandall diode information.
- équivalent de VC5022
- DIY speaker cable question
- VAS buffer
- Sansui AU 11000
- My Experience with HD600 vs AKG K701 vs Denon AH-D5000
- My "ExtremA" is Built. Whew.
- Crown Power-Tech 2 repair
- Anyone recognise this Design..? based on LME49810
- sima amplifier questions
- Problem with the bias of a Krell kst 100
- Technical Books Free Download
- Harman Kardon AVR 120
- suggestion for a 15W amplifier?
- Ib different in output-stage
- Ping balaboo
- need schematic drawing outlaw amplifier
- marantz pm94
- use 2 la4440 identical bridge circuit
- Channel Balance question??
- Phase Linear transistors drivers & finals
- Influence of the delay amplifiers for listening characteristics
- Phase Linear 400 transistor replacements
- blowtorch + symasym ?
- Harman Kardon Citation 12 distort sound
- Phase Linear 400 bridged mono?
- Buffer distortion?
- Bad day to be a capacitor
- Wildcard Power Amp dev. thread (SMD, Quasi NMOS, IRFP260, digital bias)
- Biamp CPA650 problems
- My nad L73 Receiver amp distorting bad!
- Pioneer SA 6500 into a Numark Tt-200....left speaker going off randomly! Help!
- "Push-Pull" for push und "Push-Pull" for pull (like Gamnut) - whats the right name?
- About LTSpice Simulation.
- Have somebody schematic from BGW 750G and newer models like X5600
- Toshiba 2SC5242 / 2SA1962 replacements?
- Harman Kardon Citation 12 crunchy low volume output
- Hybrid/buz900
- Emitter follower related question
- Car amplifier output transformer
- Leach amp questions
- Help Needed - Marantz 1060 dead channel
- Impedance, Schmedance....
- Preamp response curve
- My new SymAsym PCB design Rev_1.3
- Blew up JFET's on Preamp
- Direct Drive amplifier for DIY ribbon?
- My folded-cascode VAS linearity investigation
- driving paralleled mosfets in hybrid circuit
- Phase Linear 200II upgrade
- input impedance of mosfet question?
- A&R Cambridge A60 Amp left channel very low distorted
- nikko TRM-750
- Qs on Parasound HCA-1200 - Popping.
- Velleman Volume remote - tv, not hi-fi
- Spoeaker protection, project #33
- Need help with output stage
- PHONIC PWA 2200 schematic Needed
- Azur 640A v2 Service manual
- C.E.C AMP3300R (3300 R Amp 3300R Amp3300) and AMP5300R LEF Class A schematic wanted
- need schematic VR-209
- Carver receiver part I.D.
- power amp for active high pass section
- Advice wanted on using old relays in DC protection circuits
- Soft start question
- Copper ring as a shield of the main power cables???
- Your opinion about this schematics?
- Magnatec's new line - ALFET
- need schematic
- Amplifer 1 channel dead .Please help
- Re-start long idlle Parasound HCA-220ii
- Leak Delta 70 - Attempt DIY, Overhaul or buy another amp?
- Need Better power amp for active x'over.
- Replacement Denon 2sk184c
- Replacement transistors for Leach Superamp. Help needed!
- Replacement transistors in Leach Superamp. Help needed!
- protection/limmit with ldr
- Pioneer SA-1050
- C Audio RA3001.....I could do with some help!!
- New idea for low dissipation Class A amplifier.
- It's cheap, it's N, it's dirty, it's.... The CIRCLOMOS!!!
- marantz sc 7 service manual
- Help with a foolish question- technics se-m100
- Help with these? DC300A schematic anyone? Parts
- Mounting a small signal diode on heatsink - need suggestion
- P14nf12FP amplifier schematic requested
- Creek 5350MK2 (5350-II 5350 Mark 2 5350-MK2) - circuit descr. arround Q12a wanted
- Why do YOU DIY? Answer for my college research paper.
- VU meters
- Transformer for 80's Yamaha a-320
- Power Amplifier - Pre Amplifier Unity gain - Voltage gain - where as royal way ?
- Technics SU-Z400 problem
- Problem with isolated and lifted grounds
- Attenuation
- Studio Series Pre-Amp
- Line preamp acting as a tuner – how is it possibile ?
- My implementation of the Cordell Distortion Analyser
- Crown DC300a Repair Questions
- Possible fake Toshiba/Sanken transistors?
- Reverse of the old Loudness Control
- Triangle TE 60 Amplifier mods
- Recommendation Please-100W Wide-Bandwidth Amp
- 2SA1210 Transistor info
- help with translating from chinese
- Transistors for 80's vintage amps
- Amplifier Topology
- Pioneer A-300X, strange VAS
- Crown XLS 602 Bridge switch mod
- Try Again- Need help on an HK330B
- Trying to build a small battery powered amp...
- Anyone have made those diy discretes op-amps ?
- Opamp circuit to boost a small range of audio frequency
- Diagnosing a power amp
- Topology Federmann, HQQF-55 ...
- Amplifier Stand - Ikea Modded
- some help with a 2 channel project.
- Realistic MPA-100 Model#32-2023
- THD and IM - a new approach to the perception of distortion
- Watt Sucking Fireball Series
- How much headroom is needed
- FM Acoustics FM 1000 Ultra-High Power Amplifier, the absolute State of the Art?
- Zero feedback push-pull buffer : piezo driver idea
- diagnosing remote control for Unison Unico
- Slightly evolved P3A simulation
- TO-3 BJT's
- Marantz PM66SE - fuse blown
- Please Help to undustand this
- Rotel RB 850 and Marantz 5002 both burnt out, please help!
- 2SK56/2SJ176 Mosfet wiring needed to avoid oscillation
- Phono Stage for Arcam Preamp
- 2sk135/2sj50 amp schematic?
- Krell Chassis, where?
- Power measurements
- Best Audio Relays
- Marantz PM44SE - Distortion from input selector
- leach troubleshooting
- Source follower thermal cycling?
- Pre/Power Amp Confusions/Problems with Yamaha Bass Cabinet
- NAD 304. Single folded VAS?
- Question about Class-A Amplifier.
- j352 - k2221 MOSFET PAIRS
- Single rail precision full wave rectifier - full gnd->rail DC swing possible?
- Alchemist Forseti ADP20 schematics
- SOIC to DIP adaptors
- Discrete preamp - seeking opinion and advice
- No global Feedback Amp - Opinions
- Current Source video from Linear Tech
- Question About Transistor Matching
- Potentiometer Overview - Alps, Penny+Giles, TKD and Vishay and more, what's your fav?
- Use Tube Pre amp or not ?
- Parasound HCA-1500A - I need some help (noob warning)
- stability of my preamp
- An7512
- A trashed currentfeedback amp from 2003 with CFP output....
- BF245 help please
- Mission Cyrus III
- Qsc amps with "flying power" supply?
- Creek phono amp card
- J Fet Buffer problem - help !
- Can i convert voltage from 110v to 220v in these units?
- Potentiometer like Alps for complete disassembly wanted
- Marantz 2252b help
- Baxandall tone control circuit
- DN2540N5 current rating oddity
- 20w Class A amplifier!
- Updating an old Rotel RA820A to use HEXFETS's amongst other mods :)
- What amp to build for a ESL speaker?
- Power cord replacement - ground?
- Question about differential amplifier latchup
- 2SK371 FETs
- Simple clip led circuit.
- Q's on Bridging
- Adcom GFA -585 turn on/off thud/popping
- problem with luxman l530
- Class h
- Schematic needed from amp RA600 (RA 600) of the Turkish brand Westsound (West Sound)
- Power Amplifier Models from the old UK brand "POWER"
- ampli JVC A-x30
- What is an 'NFR' and 'NFL' lead?
- Update of the Aragon 4004
- benefits of mosfet amplifier
- Needing advice on first amp repair
- Help NAD 7225PE (3020) receiver output transistors replacement
- Who knows the Nikko Alpha II ?
- legend master amplifier by boraomega
- Dual Mosfets for current source?
- DIY mic preamp possible ?
- Which amp? -and how - for a ribbon speaker
- Voltage gain stage for Non-NFB MOSFET current amp
- idea about 200w circuit
- Stabilizing CPF output stages