View Full Version : Solid State
- very heavy J-fet
- Switch to run a pair of speakers from 2 amps
- Dr. Leach Amplifier (commercially being sold?)
- A760II schematic needed
- question about germanium based amps
- A certain HAL Amplifier
- help split power supply
- Zero negative feedback
- pioneer a 88x can it be tweeked ??
- Multiple transistor heat dissipation.
- CXA1297P Specs
- Hawksford cascode experiences please
- Mute Logic for LDR volume control
- Amplifier project
- Substitute for BUK437 MOSFET
- How do i calculate the impedance?
- Static on Right Channel Realistic SPA-100
- 2sa970 - 2SC2240 replacement in SOT23 ?
- Bryston 2B, buzz.
- Australian Mosfet amplifier
- Is the PCB ok?...
- Marantz SR4120 not holding station presets
- bk st-140 burned resistors
- Pioneer SX-424 QUestions!
- Disturbing noise from a channel!!
- Heatsink top quality!
- help with mic preamp
- New to this... modded Acurus A250 w/issues
- Help cannot identify Amplifier Power transistor
- Problem with Fender Frontman 212R amp
- Unique way of muting for thump prevention, outside audio path.
- Schematics of Luxman L-505u?
- 2sc2240 as 2sc458 replacement
- Dx MkIII boards.
- Need schematic for Denon pma 250
- CFP Buffer
- Electrocompaniet aw-100dmb
- LM1877
- Fisher Amplifier Question
- What is difference between two circuits
- Measuring caps without ESR
- dx amp 33v psu
- Crown psa-2 Problem
- DC servo
- "Inverted" (not 'Inverting') Output Stage
- Rega Elex problem pointer
- Rega Mira Clamshell ~ circuit required
- Faulty HH Electronics MXA100
- Exicon lateral MOSFETs
- ESS Preamp + Amp Repairs Question?
- Amp repair help
- Halcro
- Hafler DH 500
- QUAD 520f dc offset
- Twin mono by combining stereo outputs
- "State-Of-MOS": 200W Ultra Low Distortion Pure FET Amplifier
- New project....Sony STR6065, Schematics needed!
- My JLH-2005
- Carver M-500t repair help.
- portable ipod dock question
- Phase Linear 300 (series2) output transistors.
- Coupling caps on long wires
- need help akai aa 1200 reciever
- What kind of BGW's final amp. module, is this ?
- clean 11 Vrms for 600ohm load
- JBL 5234A vs 5234 Frequency dividing networks
- AMPLIFIER beginner questions..
- Neg Rail on JLH Amp Output
- Fet based phase splitter?
- boom box idea
- NAD P2100 amp with power envelope
- output transformer for on solid state dual channel for THD reduction
- 5.1 amplifier speaker protection
- Chevin Research A1000 schematic required.
- Who can give me a version of filter pro 2.0
- My invention ? Did I invent this amp ?
- Help needed: speaker internal amp blows fuse
- Budget DIY Pre-amp with MP3 Player (and FM Tuner)
- Overview of Solid State Amplifier Brands from where it is impossible to get Schematic
- Overview of all Solid State Amplifier Brands, where are SM's/Schematics available
- Nad 3020 Modification from 1982
- O2 power on trouble
- Leach amp powering up trouble
- Arcam Alpha 5 Amp - Replace Alps Switch Button
- Rewiring transformer on a McCormack dna for 220v
- PS 2 Input Components ..
- Re: Re-adjust the Bias of Power Amp
- Hissing amplifier (in Meridian M10s) help, please.
- Can I increase capacitance on these TONE BOARD caps?
- Class D amp modules
- PS Audio 100C care, feeding, speaker cables?
- Home Theater Receiver crossover network
- Looking for SAE items to purchase
- L20 V8
- Creek 4040s1 strong buzz in one channel
- 12 Watt amp, guidance required
- Nakamichi CA-7A Clicking sound
- where to buy?
- Here's a challenge....
- left channel won't work on JVC integrated amp
- KRELL FBP 200
- Stereo IC amplifier for better quality?
- Mini Class-A SE amplifier needed
- BJT, MOSFET or JFET? Which sound better in class-A
- F2J schematic needed
- Help wit hk 3490
- Behringer EP1500 w/ passive chassis?
- Sanken transistor meltdown
- LTspice Model incompatible ?
- Bootstrapping
- Determining the polarity of the speaker outputs on my amp.
- When to re-cap?
- Vertex Amp By apexaudio
- Inflated Class A power claims
- Sanken SAP15PO vs SAP15PY
- Phono-preamp with a built-in headphone output
- Leach Low Tim Blew Outputs
- audiolab 8000P - one channel dead - transistor SC2911 looks toasted - (newbie)
- Adcom GFA-555ii Repair/Rebuild
- Marantz 16 80W - What to do?
- Sub Amps: XTI4000 and Peavey CS4080HZ
- [Absolute Zero] Design Amp with minimum component (understanding too)
- Metal Film vs. Bulk Foil resistors
- randall rh200 sc
- Can I nominate myself for an audio "Darwin" (Hafler repair)
- Yet another bulb lamp amplifier: the bulbamp
- Help STK 4122 mute circuit
- AVM competition amplifier
- Jeff Rowland Coherence One Schematic
- Kenwood KA-59 Schematic
- Switching loudspeaker with relay
- Technics SU-V560 problem
- Db technologies HPA2800-repair
- how many amps ?
- gain linearity
- Bridged amplifiers...
- How much Class A in a class ab amplifier
- Choke power supplies for Class AB Power Amplifiers - which Rules for Calculating ??
- MJL3281/1302 based amplifier ?
- roberts 83i vs bose wave
- SOS... problems with Lehmann BCL ("Lovely Cube")...
- Pioneer A400 Volume pot, connection advice needed
- Mismatched hFE... important?
- which value fuse is needed for primary
- The Edwin A+B amplifier - article wanted
- Audiolab 8000 lid 'screw' required please....
- Safe Voltage for one pair of Sanken SA 1216 and SC 2922
- Onkyo A 8067 with low volume to one speaker
- LT1166 Mosfet driver - once again
- Adding pre-out to an integrated amp
- 12v Trigger From Amp
- Advice on repairing clamshell Rega Elex (Brio/Mira/Elicit)
- Dynamic Head Room
- Looking for info about low-noise preamplifier
- Schematic Montarbo 118 SA sub.
- Musical Fidelity X-A50 Mono Power Amplifier Clone??
- Krell S300i Integrated Amp "Made in China" which Factory?
- Monrio from Italian (Stan Curtis Design) - what is the new brand name?
- Strange bias problem
- Single BJT VS JFET Preamp
- Repair help requested - Creek 4240SE
- help fixing kenwood ka-701
- Yamaha RX-V590 faults
- Seeking comments on Borbely DC-100 project
- Poor input circuit?
- Musical Fidelity X-A200R Interrupts During Playback *help*
- Amplifier Audio vs PS ground
- Amplifier input's low pass (RFI filter), and other questions
- My new design or updated old one
- And now, for something completely different: Eico Cortina 3070
- Does a metal/conductive enclosure need to be grounded in order to shield?
- ground symbol confusion
- Amp efficiency
- Levinson ML-2 distorts randomely
- Lateral mosfets and source resistors
- dynaco PAT4 modifications
- High Power Amplifier with LM391-100
- IXYS devices: how to buy them in Europe?
- How easy is it to put a 1/4" input on an O2 amp?
- Marantz 2245
- NEW DAWN: 1DIFFQC AMPLIFIER
- Limitation on floating PS/circuit
- Designing unity gain poweramp
- Sugden P51 schematic
- Denon AVR-3300
- Yamaha A-550 lamp replacement
- advice appiciated on clean neutral neafield amp
- Levinson ML-2 or Threshold SA/1
- High DC offset on DH-220
- Real substitute for P80NF55?
- Substitute for BF862
- TDA7294 Bi-amp DIY
- Elektor 1976 article wanted
- L20 AMP。use only two NJW0302G
- what tx needed
- capacitor before bridge rectifier
- Improvement of Darlington-Output Stage in Hiraga Monster or 20 W
- 500v/uS slewrate, really?
- PAT-4 Bass Control
- 2SK170 Equivalent
- What's your thoughts about this "star grounding" design?
- Transformer as Voltage Amplifier
- Slow failure of NAD 7225PE. Suggestions?
- Symasym and RF noise (?)... Ehm... Need help...
- Rewiring Protection Relay
- Help with Technics SU-Z45!
- is Technics SU-V50 worth repairing...
- Audire ... Oh Dear !!
- Krell KSA-50 Clone Output transistors
- This novice needs help with Voltage divider
- Does Potentiometer affect cutoff frequency
- Matching MOSFET transconductance
- marantz pm 7200 left channel distortion
- Onkyo TX-SR501 riddle - no sound but it works in every other sense...
- powering up amp and pre-amp
- simple softstart
- Level pots and degrees of attentuation
- Beomaster 4000 fixing help + ideas please!
- Carver M-500T Bias adjust question
- Magic in "flat earth" amplifiers (Naim, Exposure)
- Quasi Nmos200 blowing fuses, and FETS's...
- Equivalent transistors
- I love jfet input
- superconductivity and audio ideas – let’s brainstorm
- Circuit of Musical Fidelity A1, Any one has experiences?
- PCB for this Loudness circuit - Help!
- Scored a Crown Powerbase II
- a breakdown of the component part function for a tda7384 amp ic circuit?
- NAD C350 Amplifier - Faint Channel
- Bridging twin amps
- 500W RMS PA Amplifier
- KSA-50S Krell
- Problems with Onkyo Integra A-8067
- High power subwoofer amplifier
- what's your thought of using almumium PCB in audio amp?
- Marantz 2215b power transformer.
- Another diagnosis question?
- OK, had a new look on the net for...
- Jfet input, Lateral output 2nd version
- Another Crown 602
- Amplifier making pop sound
- Yamaha Integrated AX-380: Anyone know the manufacture year?
- Determining Phase and Gain Margins in LTSpice
- Replacement for 2N3773
- Another op amp based amplifier.
- Semisouth SJDP120R085 JFET - who's interested?
- Behringer Cx2310 modification question
- Simple method to do quad match
- Simple method to do quad match
- European Transistor's replacement.