View Full Version : Solid State
- Problems with Rod Elliot's Project 05 (power supply)
- Differential Input Stage - Question
- op amp recommendations
- driver stage for CFP output.
- On board effects to a guitar?
- PCB Layout for Hiraga Le Classe A?
- Help:How To Reduce Transformer Output Voltage?
- Need advise on this amp...
- What’s your recommended favorite DIY amp?
- Best $/Watt Switching PSU
- Some questions on MOSFETs
- AV amp switching relay
- P3a vs outlaw audio amps
- low level converter
- 1st amp (and preamp) kit recommendations ?
- Super isolated power transfomer for pre-amp.
- 50w @ 8r / 100w @ 4r / 200w @ 2r
- Vandersteen 5A Sub Amp
- Amplifier Question - Predriver stages
- Good BJT for 3A operating current?
- Single device (BJT/FET?) amp?
- Mosfet Class A drive: Low voltage sharp attack Vgs :VS: Smooth gentle Vgs.
- 47 labs gaincard transformer
- stk4050 parallel
- From two amps stereo to single amp balanced?
- bending leads
- Need advice on replacing caps in amp P/S
- Capacitor Question - Amplifier/Power Supply
- car amp help
- The first Class A amp
- Where to put diodes on Leach amp?
- Quasi-complementary Hexfet monstrosity.
- 200 Watt Lateral Mosfet Amplifier and irfp240/9240 (segue)
- Strange Switchercad behavior
- Krell KSA-100 question
- Transistor info (2SK,2SJ...)
- 200 Watt Lateral Mosfet Amplifier and irfp240/9240
- square wave in = square wave out
- Rail-to-rail power amplifier
- Running the KSA-100 in Class A/AB?
- Phase coherent, low cost, 4th order XO
- offset probelm in bugle phono preamp
- 50W FM Radio Amplifier
- power supply question
- Modifications to the Adcom 535 or 555?
- A new ESP 3A amplifier!
- gain, signal transmission, ect.
- Cascaded Switching Regulator Stability
- How Diyaudio.com preamp going?
- Heatsinks
- For jcarr: PSRR of AD797
- Series Caps in Power supply
- Help with Yamaha Pro-Amp
- Need amp recs for active dipole speaker project
- PSRR, topologies, device characteristics
- What do you think of this lm3886 circuit...
- Can This Amp Be Modified???????
- How to make 2*15V secondaries to 1*30 V?
- LC Audio ZapPulse modules: Worth it? Anyone use?
- pic of my last power amp
- Madrigal internal photos
- Small Quantities of TDA7293 in US?
- Parasound schematics ?
- What about this amp design ?
- Momentary relay driving circuit
- P3A 'bright' ideas?
- LC Audio ZAPpulse - power supply
- Isolating each Mos-Fet?
- any one know if the Alesis RA 300 amp can be mod ?
- High Quality mic amplifier for Panasonic WM-60a electret?
- more help, power supply issues
- Capacitor question...easy one
- Cost effective upgrades
- Strange amp behaviour....
- Transistor Comparator ?
- Kenwood KR 3130
- can i use these xformers for aleph-x?
- please help a student out
- Chord with PIC's
- kenwood reciever 1060vr
- P3A turn on current surge
- Need some rec's for nominal power, nominal cost amps
- Bryston Scehmatics
- Smaller transformer for lm3886 amp?
- Synth suitable filters !!
- Feedback network silences op-amp resistor noise
- measuring amp output voltage
- Any idea what Amplifier this is?
- Bridge amp feedback
- Lead (Pb) And Pvc Free Caps.
- Amplifier Rail Detector - Protection Circuit
- Having trouble building a power supply for a phono preamp
- ClassA question for the enlightened...
- What to do with these MOSFETS?
- Square-Wave Testing
- Tda1518bq
- Stk4141v
- Pls Help... Capacitor Mounting
- sub amp mod - defeat the low-pass filter?
- Heathkit AR1500a modifications
- BOAK Power supply
- Interesting amp building experience... BANG!
- put my pre-amp together and now the left channel is playing distorted :(
- Lost in [net]space
- Opamp Decoupling
- New kind of compound emitter follower?? or - another weird circuit ;-)
- My amp is completed !
- OPA658 socketable?
- Problem putting together my preamp (simple) - please help :)
- transistors
- Adjustable regulated power supply
- MJ11015 Question....
- IRFP240 Questions
- can i use a 50V DC power supply
- multimeter
- Surfboards adapters
- NAD 306 Schematic!
- New pre-amp kit just arrived in mail
- OPA541 subwoofer amp
- How do the pros hookup differential amps to o-scopes?
- Power output into small loads
- 2 Ohms stable Transistor Amplifier...
- Balanced / Differential Input Question
- Opamp with x10 gain and bootstrapped supply rails.
- DIY active cable
- Amp on indicator (on speaker)
- JFETS in differential pairs.
- Rc1556t
- XLR's as speaker binding posts?
- Amp on fire
- AC mains filtering question
- cleaning my volly pots
- strange transformer failure mode
- Rail Voltage Failure Question
- 2n3055
- Something for our friend in Israel
- Aiwa P80 circuit diagram
- Help with FET's
- protection
- ta-fa3es fried resistors?
- Problems with Crescendo ME - Need help!
- LM12CL 80Watts Opamp
- Kit recommendation
- Matched PNP/NPN dual transistors
- Unique request: 10MHZ (-3db) pre-amp
- Power Requirements for Multichannel Gainclone
- Datasheets and input FETS?
- help with BJT preamp design
- Paralleling power supplies
- problem with static/carpet and HT rig
- Service manual for Eltrocompaniet AW 3-2
- Hy to all of you guys !
- Counterpoint
- Transistor Break-In Circuit
- Amps for best synergy for PHL Manger / Raven
- Heatsink suppliers? PCB dimensions ?
- Blind Listening Tests & Amplifiers
- Which caps to use in Leach Amp?
- Pioneer recall
- Proximity Amplifier
- +-25volts = ??Watts bridged??
- 200w Amplifier question
- PreAmp Regulated Supply
- How do I determine what this Transformer is?
- power
- BCP5x SOT223 power transistors in an amp
- Pls Help Choose a Fan
- Aussie Amplifier Question - anyone
- AMC 3020 schematic wanted
- Blurry Signal
- parts for eagle software?
- I'm Confused and I need your help.
- MJ15026 and MJ15027
- rod's balanced driver & receiver
- Rod Elliot P3A amp noises
- What makes a good audio power transformer?
- TO3 transistors sound crap ?
- Qkits.com amps/preamps - opinions?
- hafler xl280 amp info
- Advantages of Cascode?
- Replacement for 2SA765 / 2SC1445 ?
- Lm4766
- Matching Gain and sensitivity for triamp
- Bleeder Resistor Advice
- Quality in a Cool Follower 99
- High Speed Diodes
- Replacing ceramic caps - do or don't?
- Reasons for blown MOSFETs?
- Op-Amp Bypassing Problems In Marantz CD63
- PCB layout for Krell KSA100
- power supply wire dressing
- Sony CD XE530 Output filter
- Source for HQ fixed 15V regs anyone?
- Bridge/Parallel LM3886 Amp
- going from XLR to unbalanced, is this ok?
- Schematic request: Harman Kardon PM665
- High Power Amp
- Strengthening PCB tracks with solder?
- just found back a quick drawn schematic of my amp
- looking for 200w amp
- SMPS Transformer Equations
- P3A and ground loops
- 500W amp
- Damping factor
- Anyone have experience with this pp linear hexfet amp?
- Help me with my JFET / BJT design
- Interference with Philips CD recorders
- 4-part Harmony, a 9 watt class A amp using a voltage regulator IC.
- is lm3886 good for 50W sub?
- is this amp good for newbie project??
- Solid state amp on +/-150V ?
- 8pin soic labeled 15532, What is it?
- TO-3 or TO-247?
- Better transistor package?
- Simple ques. about this schematic..
- Need help with IC Based Amplifier "pop" problem (Integrated Component)
- Differential amp in the Sony CDP-911.
- grounding on pcb designs
- Aerogel capacitors
- Superfluous Volume pots on power/ amp
- TDA2030 for high power amp.
- Constant Current Source A/B Test
- Leach superamp pcb's
- active xover
- MBR series
- I have a question about amp resistance
- Opamp based preamp, for a gainclone
- Free oscilloscope,spectrum analyser....
- Wire gauge in PSU (newbie)
- 48 volt battery charger
- Capacitor Krell KSA 100
- Leach amp transistors
- Dunlap -Clarke Dreadnaught 500 Power/ amp.
- Crescendo ME sound quality
- Need KRELL PAM-1 Schematic HELP !
- Ratshack Remote control for preamp
- krell
- Kaneda Pre-amp?
- 2SA1302 and 2SC3281
- Measuring Jitter
- Simplist BJT amp.... again.
- JLH Update
- XLR (maybe balanced) and RCA amp inputs
- Multiloop and inverting configuration
- feedback on amp modules from audioxpress.com?
- Best Power op amp
- best opamp for you [surway]
- Electric shock risks
- Visio 5.0
- DIY subwoofer amp