View Full Version : Solid State
- Oscillations gone wild... Kenwood L-07MII
- Active current source
- Bipolar OP Stage Error Correction
- Insulators - heatsink
- Replacement Pots for HK730
- Output transistor substitution
- SINCLAIR Amps from c1972
- Nad c340 input selector
- Mini Crescendo article
- Naim nap 140 feedback resistors
- Oen loop preamp topology questions
- brown alps pot replacement?120k can i use 50 k to replace it
- About INPUT RESISTER separated from ground
- 250watt 8ohm need an opinion
- Guitar amplifier wierdness
- Simple fet amps schematics, suggestions?
- MOSFET amplifier
- Mark Levenson 20.5 schmatics
- What do you use for a simple cheap load?
- Amplifier Av-800
- Roll off power amp low end?
- Marantz SR5400 schematic
- NAD3140 problem
- amp blows fuses at turn on where should I start looking?
- Acoustat Trans-Nova Twin-200 biasing
- can you bypass internal crossover on BASH plate amp?
- Amp Will Not Function
- Pioneer amplifier SA-1270?
- MJL4281A/4302A Amplifier or MOSFET's
- Denon PRA-1000
- Power Supply - need to reduce voltage - any hint?
- cd input too loud can it be attenuated?
- Why main fuse and not rail fuse?
- Worth repairing amp or building new?
- Half-dead Rotel RB-850 resurrection
- Cambridge Audio A3i Relay
- Yamaha MX-1000U Protection always on..Help!
- Harman Kardon PM 620 oscillating
- Luxman L-85 schematic wanted .
- Kevin Gilmore
- Audio Analogue Puccini
- Wanted: Crown K2 service manual or schematics
- high quality 10A dual voltage regulator
- 2sc2705 for differential??
- Problems with Carvin PB500 Amp
- transistors
- Where better to use charge suckout capacitors?
- substituting FETs
- Sony TA-N1 and TA-NR1, how do they sound?
- Altec 9440A?
- What is the goo? Adcom question.
- Is this stable??
- Old articles
- Adcom 555 repair parts swap ?
- If it aint broke
- Adcom 555 advice
- Hybrid Class A / Class B design.
- Has anyone ever tried a Beta Enhanced emitter follower VAS??
- Audio Amplifier without transistors or tubes?
- Make A Good Pre-amplifier???
- Quad FM4 tuner
- Testing a fried Marantz SR50 - any tips?
- JLH (my version)
- C/M Laboratories amps (and other gear)
- Op-amp for signal inversion.
- cambrigde audio a3i help!
- Low voltage opamp recommendations
- Questions about mosfets IRF3205 IRFZ44N
- Plate Amps or Monoblocks
- Moving to triamp, need decent cheap 3-way active crossover and poweramp advice
- For the owners of a Rotel RC960BX
- Mark Levinson no.29 clone? schematics available!
- Krell Shootout In Salt Lake City
- New amp results
- Adcom GFA-565
- Suggest improvement for this design
- How do you tell if an amp is bridgeable?
- C-Audio RA2000 Protection LED
- Nikko Alpha 220
- 10W JFET/MOSFET SE Class A, no Feed Back
- Parasound HCA-1200
- transistor mounting
- what transistors to use?
- what transistors to use?
- Interesting new TI op-amp w/ very low noise
- 50watt into 1ohm load with KAPPA 9
- Won't bother ....
- Threshold FET 10/pc Phono Stage Preamp Schematics aka FET 10pc, FET-10pc, fet ten/pc
- Marantz PM-66SE: No audio
- Taking advantage of parasitic properties
- power supply wiring
- Bob Cordell Interview: Power Supplies
- CA 540R schematic
- A question about powersupply fuses?
- Help me design a pcb for redcircuits 10 watt amp..
- Classe DR-15 schematics / Info?
- Shure Vocal Master Fuse Popping
- Marantz SR5000
- bias for pioneer a400?
- END200 who knows this design ?
- Ceramic caps: SMT as good as radial?
- Bozak restoration/update
- H-K AVR3000 loses memory among other things
- Ion Obelisk 3
- upc1298v power amp uk supplier?
- Request of Anatech
- bjt/mos (class A) CFP
- Belles Series I for sub duty
- bias capacitor
- Pioneer SA-710 Amplifier
- 12 Volts from 38 using IC Reg Chips
- nakamichi amplifier 1
- mitsubishi DA-A15DC
- How I Can Bridge This
- I found this one in the WEB...i think it is very interesting
- Current Mirrors and first post here
- 100w 8ohms does not opperate
- audiolab 8000a
- schematic
- Crest CPX-1500
- Conrad Heatsinks...
- Bob Cordell Interview: BJT vs. MOSFET
- powersupply not sure what to do?
- Yamaha RX-V590 On then Off Problem
- leach amp powersupply ?
- P3a mosfet equivalents
- Can't get home built amp working
- Amplifier Gain Question
- can irf540 +irf9540 be tested with dmm
- Amp non working
- Need small coupling capacitors
- power supply for project 68
- Remake of my DoZ almost completed [pics]
- Question about DC offset from source.
- marantz cd4000
- i have some pics of unwell pioneer
- Proposal of new test signal for amplifiers, with regard to HF interference
- Amplifier Input CSS, good thermal data + Red LED model
- Yamaha A-760
- Driver board on a Krell KSA 100S
- pye sx 6390 hifi project amplifier
- Bootstrapped FET source follower ?
- Opinion about this hi-fi amplifier
- Determine the signal path ?
- Pcb 300 W
- Need Denon PMA-750 Bias Procedure
- Need Marantz 2230 Bias Procedure
- follow up to pioneer a605r
- pioneer a605r keeps switching off
- Speakers for Adcom GFA 585?
- Future Trends in IC Opamps
- Serial or parallel
- Hafler DH500 Heatsinks - looking for djk
- AV receiver mod
- Lm4702 BPA
- Nad 7020 inputs
- NAD AMP.....sound distorted....fuses blown
- Phase Linear Model 200 help needed
- Sony saw40 sub problem
- 4th Ed. of Audio Power Amplifier Design Handbook (Doug Self)
- Rotel amplifier buzzing, please help
- DC300A II tweaks
- In Active crossover application, OPA2134 and OPA2604, which is better?
- 2 x 90w rms @ 8ohm help please
- simple mods to a solid state amp?
- Bridging Hitachi J50/k175 combo?
- Where to buy replacement Bando PT
- pcb layout for "project 68"
- Uploading large service manuals?
- Lack of air and volume as an indicator of crossover distortions
- 2x44VAC 300VA: What sub amp to build?
- How to minimize output offset drift w/o servo??
- JBL MPX600 Schematic
- Interesting output stage idea
- Anyone know anything about the Velleman K8060 el-cheapo 100w amp?
- When witch came.......
- Heatsink calculator?
- Help with RC values
- Help me troubleshooting amplifier module
- TI vs National -- the THS4520
- National Semiconductor LM4562 used as a line preamp.
- Building a sub amplifier
- Classic old Nad 7045 reciever with bias problems
- Need easy buffer/preamp help
- Denon PMA-250
- lesser of two evils, high level -> line level, digital volume control
- Is this passive attenuator woth building?
- The Smallest 50w Mosfet Amplifier
- Kenwood Equalizer
- Some help needed with a power amp
- Car woofers destroys normal amplifiers?
- IRFP... or MJ15003/15004_MORE POWER???
- Amplifier For 400 W_rms
- British Quad amplifiers
- Lubing CD Trays
- Adcom GFP-555 preamp. Upgrade It or Replace It?
- Clone KSA-200
- Aleph2 VS KSA100 VS LEACH150
- Why KSA100 can delivery 400W at 2ohm loading
- Newcastle R-956: Where there's smoke...
- The best SymaSym produced by our members
- cyrus 1 amp later version
- coherent noise and chaotic distortion
- BZLS and SKA GB150D
- transformer choice for amp
- ST MOSFET-Power Amplifier use???
- Arcam Alpha One upgrade
- Luxman LV-117 ?
- what do you think about this amp? (pic inside)
- Novice Question on Transistor Replacements
- My Nad 2200 burns all my tweeters.
- Guitar Amp buzzes off of power inverter, will this filter work?
- Need Sansui TA-300 Bias Procedure
- [DIY] HEXFET AMP total disaster?
- Hafler XL-280 : PC-40D circuit design
- slow turn on
- Slow CD Changer Tray
- Design for thermal stability?
- Internal amp wiring
- Phase Linear Model 700
- Cyrus Two low input impedance?
- what transistor to use??????
- newb 101 help
- Decisions... P101 vs. P3A vs. SKA
- Really Quick One: What Type Of Input Cap
- **** amplifier for party is not working!
- Ovation Amp
- HEXFET amp
- Rotel ra-935bx, opinions?
- BGW Pro 250E on the blink
- Hum hunting - LM4562 Phono stage
- Class A amp...is this normal?
- Schematic needed badly
- Levinson No23 DC offset troubleshooting
- Quad 405-2 mods - which ones?
- onkyo preamp p-306rs
- ESP P3a protection?
- Preamp/value for money
- Nakamichi Reciever 2 problems
- service manual, volume and balance pots for Teac SA200
- C Audio SR606 Schematic
- Hifonics ZX6400... no output from speakers outs.
- as connecting two processors
- big power amp
- loud thump when powering up my amp
- Yamaha RX-V490 Amp Problem
- Mark Levinson ML3 or No23 ????
- old commies amp working, few questions
- Sony VFET...tragic...
- Soft Turn On/Off on Hafler 9500