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- Activ-Sub Project's IMAGES
- New Output Transistors for a Quad 405 (2)
- Etd 49 & 3c90 Help!!
- BD139/140 Overvoltage
- Pioneer A400 coupling caps
- non global nfb balanced MM ss phono preamp/amp
- 2n3055hv what is this?
- best way to connect this amp..
- Voltage regulator OP249 question
- depletion mode mosfet selection
- Sanken 2sa1492, Onkyo
- hybrid Amp project
- "Which linearity" is the best? Current, Voltage, Power?
- Sziklai emitter follower as voltage stabilizer
- Questions
- check out this transistor
- Need a power a 40Watt RMS Sub...
- Hawksford
- Interest Check: European version of Quail powercords
- Why are these fuses blowing
- list of transistors
- I need schematic for a big!!! amp
- How This Circuit Works
- Rega Elex service manual needed
- Stacking Toroidal Transformers.??
- Chattering Relay in Krell KSA-250
- superbridge ??
- high performance but cheap amp
- Hugh is expanding (AKSA amps)
- What is STK ?
- a few pics of my amp
- Sanyo DCA 411
- (Pre)amp on or off?
- songs which cause your amps to clip
- Small distance from ground, what will happens?
- cracking noise in P3a
- recall a classical MOSFET power supply
- Yamaha MX-630 Power Amplifier schematic wanted
- why a cermet pot?
- Help with surface mount work
- Tivoli Model1 PSU hum fix / upgrade?
- Marantz PM 75
- problem with my Levinson preamp
- Behringer ep1500/2500
- power transistor recommendation
- OPMOSFET Amp
- 1KW amp design
- My new amplifier:)
- power supply sizing recomendations please
- gain calculations
- Background-noise in my new amplifier
- Power Transformers!
- Diod bap811
- Marantz pm 94 + Bias adjusting
- Powersuply mystery
- Simple and cheap
- Need a book sugestion
- Repair issue, please advise
- Heat Sink White Paper
- Amp choices-- advice
- Here are my Leach amp Ppictures
- post your leach amp photos
- Sound pressure, is that the same?
- help id these caps on picture
- Amp Problem
- Anyone with 4W class-A?
- can I use this cap? what about low inductance?
- help to build a transformer to car amp.
- Leach Amp with 12,000uF Caps
- Replacing the BF871 with the MJE340
- Mcintosh C26
- questions about this amplifier
- typical HFE's of 2N3440 and 2N5416
- bc550c and bc560c
- polyester vs metal film caps
- Do I want to much? Somebody help me!
- "bridge mode"
- how to identify fake transistors
- Long Tailed Pair Modification
- 78/79 vs. LM317/337 regulators
- Power Supplies 12 Volt?????
- Technics SA-X900L
- Free lcd displays
- p3a bias trouble, quick question :)
- Getting Both Channels out of my M-501
- AES amplifiers by Sgandurra
- what are the film capacitors?
- which capacitors to use in leach???
- Subwoofer amplifier with 2SA747 and 2SC1116
- guitar amps
- wanted Depletion mosfet
- VAS current calculation
- Changing the NFB resistor to balance gain.
- TO-3 tran. replacement 2sc1445/2sa765
- Lowering gain of power amplifier, good idea?
- Any advice on attenuators?
- jetronics valvehybrid amplifier
- effect of fT(min) of transistors in amplifiers
- 3-terminal regulator IC protection
- What is most linear power Mosfet around?
- Samsung KSC2837 and KSA1186
- Converting spice2 POLY sources to spice3?
- Biasing for different classes
- Harmon/Kardon AVR35
- bending a lot of resistor leads
- capacitors in series in PSU
- Building Mark Levinson 38 preamp chassis from scratch
- tolerances of 1% metal film resistors
- 1N4747 diode in leach amp
- improve the linearity
- question about input stage
- Kenwood KA-88
- Is this amplifier good?
- Question about output stage used in open loop
- mica capacitors in amplifier
- 2 x 750va toroids sufficient for leach?
- Remote turn-on for power amp
- Pioneer Cd Mod's
- No tuner on HK 330c
- p400 382w8ohm
- ESL Problems after thier first run
- negative alw super regulator problem
- wanted a dual differential amplifier with all fet
- Hafler DH 101 preamp mods
- Problem with amp
- Wanted-schematics for Technics SU-V78
- What is the best amplifier project...?
- testing second hand filter caps
- Protecting loudspeakers in bridge amplifier
- Low-End Happiness
- capacitors NP vs. BP
- psu problem / ripple current / esr
- Zener + Emitter Follower voltage regulator
- Elektor crescendo ME vs ESP project101
- op-amps for phono stage
- hill dx1500 schematic
- Musical Fidelity B1
- Ac contents in dc PS?
- tinning a pcb
- resistors and capacitors in leach amp
- Subwoofer Plate Amp Crossover Not Working
- Low gain x circuit
- Marchand schematics + function gen software
- Adcom 535II question
- sound card input levels
- Need to oversize trafo?
- Maplin AV Amp £50 - Good for hacking?
- sharp cdba1700h
- Sankes is good... On-Semiconductor?
- No. of parallel BJT? Rule of thumb?
- Krell KSA100S cannot be turned ON
- Who have experience diy Hi-End amp using SMD component?
- Carver CM-1090
- SUV-78 schematics please?
- Tie PSU's for more current.
- 400watt amp @ 400watts VS 800watt amp @ 400watts
- How does clip protection work?
- I'm taking the plunge!
- Need help w/ replacing lights on HK 330c
- Problem getting boards for the Leach Amp
- NAD 7250PE Intermittent Distortion
- Problem with really simple circuit!
- ETALON-schematics?
- Is that smoke from my Krell KSA 100S?
- NAD 2200 PE schematics
- ad8610 class a bias +v rail or-v rail?
- Fuse resistances?
- Amplifier ranking 2
- Tweaks for NAD 3020
- Marantz 2275 - trouble in mono
- need help building a 50 W audio amp!
- Automatic Gain Control - 50W amp needs a good feedback schematic!
- Next JLH
- First cycle distortion - Graham, what is that?
- Just a small test I did on power supplies
- need help badly
- Power Monitoring
- DC offset on NAD302
- balanced and bridged amp question
- some questions on PA amp(pics)
- Marshall SRX Series
- A simple stereo Amp aroud a 2N3773
- samod's mosfet amp
- To good to be true?
- Looking for JLH 30 Watt articles
- overheating amp
- Power amp output - BJT or MosFET?
- VERY simple heaphone amplifier
- Le Monstre
- Offset Voltage Indicator?
- Do someone knows how to change the crazy way i wan't?
- Why bootstrap?
- Please,can you improve this amp, let me know how
- Symm-Amp Improvement
- Output fuse
- So Many Questions ...
- One channel louder... Rotel RA-971
- Pioneer SX-D7000 Receiver
- A New and Old circuit board, another way to assemble electronics
- Symmetrical input stage
- leach amp inductor smoking
- BridgeClone with current-dumping circlotron afterburner :-)
- Power supply dilema
- Fisher RS-1020 questions and problems
- altec 9440A
- Rotel RB-991BX
- Audio amplifier output relay delay
- high volt amp (dumb theory)
- Simple, powerful (100W-200W into 8ohm) amplifier schematic needed
- Help needed with Preamplifier ML 38S
- Removing excess voltage from amplifier supply?
- preamp pointers
- Taming Ringing...Square-Wave Response
- preamp with mc input
- maybe this is too dumb a question...
- Ok to run high-end headphones with amp output?
- boring sound from computer speaker
- Destroyer use darlington in this circuit!
- Do not match TRS, buy matched!
- Pioneer A400 faint distortion on right channel
- So I done the schematic...
- Looking for Technics schematic SU V650
- balanced preamp question
- Amp Troubleshooting Resources?
- Replacing burnt out transistorin Grundig FineArts Amp
- BGW 750 amplifier power output - increased.. - modified filter caps???
- PSpice
- Matching trs, Mr bo answer,sprache nichst deutsch
- x-over makes my amp get hot and shut down
- Supercharging a mass-market reciever..
- output transistor biasing question?
- Switching audio signals with relay
- If you're not a gênius do not read that..jump!
- Single Opamps
- oceana a100
- Transistor matching ideas
- New-Class-A ? (whats it mean)
- I've been told Toshiba is discontinuing 2SK1530 & 2SJ201 in US
- Running op-amp in class-A
- Should i try this ?
- LM741-Is there an easier or better way?
- Zenquito
- Anyone who have experience diy FM acoustic , Cello , Halco , Ayre amp?
- Kenwood KR-5340 amp
- P3A customisations
- Seeking advise for a preamp.
- PSU capacitors setup?
- pre-amp needed for leach amp?
- DC-DC converter
- Leach Amps PCB Artwork