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  1. good pre-amp for 300$
  2. Naim NAP90 - loud hum when no input connected
  3. Advice on choosing a new ~20W Project
  4. minimum inout circuit for testing
  5. Problem With Pioneer Receiver
  6. 2 Preamps on 1 PCB ?
  7. Recapping Quad 99 - simple question..
  8. AC coupled feedback
  9. OK it's late and I need to call it quits.
  10. Event 20/20 Bas
  11. Acousto-electro guitar amp - speakers impedance
  12. pa amp repair.
  13. FET Static Power Dissipation
  14. Best 2N3055 alternatives
  15. what is this amp really - "Digitech" AS-0476
  16. Midrange attenuation of 4-5dB needed
  17. Help to calculate the amplifier
  18. Need help on Yamaha AX-440
  19. NAD 208 arbitrarily into protect mode - more commen when hot
  20. printed datasheets
  21. Miller Compensation Capacitor vs Slew Rate
  22. I need help with a transformers issue
  23. NEED HELP FOR NAD C-320 INT. AMP
  24. Replacing caps in my hk770
  25. Alternatives to transistor BF247A
  26. Amp's output DC comes and goes, any suggestions?
  27. Amc Transformers
  28. Marantz PM68 tweak
  29. Technics SA-404 running hot!
  30. Adcom 545ii problems
  31. About 10-14W Class A amplifier
  32. Need help with SC480 Build
  33. Need a little help with a L 20 amp
  34. Pioneer SX-1050 Re-Capping - Film or Electrolytic??
  35. This meter pegs but amp works fine
  36. Amp woes... Denon POA2400.
  37. Amp woes... Denon POA2400.
  38. Accuphase e-202 relay
  39. OPA7 discrete op-amp modern design
  40. Subamp with ~ 1000 W RMS at 4 Ohms, built at low cost
  41. Building a DJ mixer
  42. Where to buy heatsink for power amp?
  43. NAD T762 Plays analog CD with the Tuner
  44. Help repairing Pioneer M3
  45. dc output protection
  46. Burning in a Transistor amp, does it change anything?
  47. driver emitter resistors.
  48. method of the coherent triplet
  49. Creek Integrated Amp 5250SE -various Versions for Input Selector Switches
  50. QSC A21 bias?
  51. help me get info about a transformer that comes from a Crown XLS 202 PA amp
  52. help me get info about a transformer that comes from a Crown XLS 202 PA amp
  53. NAD 3020A Constant Hum
  54. two opposed transistors to clamp audio signal
  55. headbanger amp
  56. adjust bass boost frequency
  57. Better way of installing gate stopper resistors?
  58. Hi Fi AB amplifier for Powered Speaker
  59. Will these speakers work?
  60. MOSFET gate resistors, carbon?
  61. power handling of output stage emittrer resistors
  62. Buffer & Amp experiment
  63. McIntosh MC2100 question
  64. Runing Quasi's NMOS200 @ 2ohm ?
  65. Soundcraftsmen help
  66. Good old technology?
  67. SC480 Amp Power Supply and Voltages
  68. power resistors in power amps
  69. simple diamond mirror preamplifier
  70. My Amp Collection
  71. battery powered power amps
  72. Rotel RA-970BX problems
  73. help with preliminary calculations
  74. CA9 SCHEMATIC NEEDED
  75. Panasonic SU-2700 Repair (Otherwise known as the Technics SU Z1)
  76. 150W > cheap, simple, bass power amp?
  77. Nad C320 slow warm up
  78. Luxman L-530 damping factor
  79. Marantz PM-230 Amp repair help - Input selector?
  80. Voltage regulator adjustment
  81. Replace a balance pot with resistor?
  82. quasi-balanced working method
  83. My 10W class AB Amplifier
  84. Chassis grounding a Accuphase e-202
  85. Type of outputtransistors in a Classé Audio DR-3
  86. My first PCB - some help needed
  87. Focusrite Voicemaster Preamp Repair Advice
  88. Luxman L11 service manual wanted
  89. Not enough power from my amplifier?
  90. Is it overheating?
  91. Carver M1.5t Output Devices...
  92. SpeakerCraft BB2125 - burnt resistors
  93. Looking for a complete DIY amp
  94. Kenwood KA-3500 Integrated Amp DC Offset / BIAS Adjust confusion
  95. Buffer help needed
  96. How much power for an initial experimentation
  97. Cerwin Vega SUB-150 Loud Hum
  98. Denon PMA-250 amplifier - volume issue
  99. need help repairing ppi 4400m
  100. PV 2000
  101. Accumulator power, stabs free
  102. LME49830 non audio application
  103. Stacking op-amps - pros and cons.
  104. Vintage V-FET Amps - Where Has All The Interest Gone?
  105. Kenwood KA-3500 bias adjustment
  106. help for MARANTZ MA-9S2 schematic
  107. Easy way to listen to power amp via headphones
  108. Amplifier with nested Miller compensation
  109. Audio Sonic ST-500 integrated
  110. Help on Sansui amp board
  111. The Pulley amplifier - Wilson mirror
  112. Replacing TO3 transistor insulators
  113. Dynaco Stereo 400 Headache
  114. Crimson Elektrik Literature from 1979
  115. Any kit/board suggestions?
  116. What about this amp-CFA or VFA?
  117. 400w high fidelity diy amp, where can I find them?
  118. LM317/337 causing problems with my amp? Hegel H1
  119. Negative Feedback Caps - Bipolar OK?
  120. DC Offset readings?
  121. Potting the input stage changes tone?
  122. Elektor Preamp 2012 (Douglas Self) Mini, low budget
  123. "Simple" CF amplifier circuit...
  124. Fujitsu 5200 power transistors in TO220 packaging?
  125. 2 preamps in the same poweramp
  126. Recapping of SS amplifier
  127. Mic preamp for dynamic mics, any glaring errors ?
  128. Unknown mosfet amplifier
  129. More current mirror confusion
  130. Have power need a kit
  131. Why is the output of the IPS LTP considered a current output?
  132. Crescendo Elektor Modify Suggestions
  133. Strange crackle in my Rega Mira
  134. Naim Nait 2. Gone very quiet.
  135. Rotel AV amp for 2-channel?
  136. Adding gain to INA134 ?
  137. how to test a vi limiter
  138. Mark Levinson 26 questions
  139. Multisim transistor models needed.
  140. Latest project 500 watt class AB in a PC case.
  141. fuse // cap for basic passive speaker protection ?
  142. Lateral Mosfet Amplifier Design
  143. Min DIN
  144. 25W Mosfet Amp troubleshooting
  145. Hill DX 3000 low power
  146. Leach SuperAmp with 2/4 extra pair of output devices?
  147. Albarry m408 upgrade questions...
  148. Is NJM4580D an upgraded NJM4560D ?
  149. Current mirror load in a LTP
  150. Need suggestion
  151. Assembled DIY Phono Amp OPA2134PA on Ebay
  152. PHASE LINEAR 4000 PRE
  153. NAD 916 DC offset correction ?
  154. BD139 Odd problem- NAD 3140
  155. Power Decoupling & Hum Noise
  156. Respectable THD levels for double EF Amp
  157. Kenwood ka-801 Help how to remove current limiter SOA
  158. Fender BXR 60 bass amp buzz (preamp section)
  159. 140V/us
  160. ANYONE WITH CYRUS 2 VERSION 7?
  161. Trouble with Denon Avr 5805
  162. someone can help me to analyze this circuit?
  163. Philips FR675 repair: replace 2SC2240 with ZTX458
  164. Why is my amp oscillating ?
  165. Crimson Elektrik PCB's
  166. Carver M1.5 Crackle Noise
  167. End resistors Cyrus 8v2 mod
  168. Would an 12v to 240v inverter run an amp?
  169. Is there any place need to improve in this power amplifier
  170. My dream amplifier, wished I knew how to make it.
  171. Repair of Onkyo TX-SR506 (One transistor blown)
  172. Wanted! 12AU7-Mosfet hybrid from Musen to Jikken
  173. More than 25watts realy needed ?
  174. Marantz 2385 problem
  175. Correct way for PSU?
  176. Turn on pop Rockfosgate Hafler
  177. How do you solder this 24pin SMD IC+
  178. Computing output impedance (Cordell's book)
  179. How to reset NAD AV 713?
  180. Service manual Nad AV 713?
  181. NAD 2600A Modification Question
  182. Is this preamp circuit OK?
  183. ringing with squarewave
  184. Matching MOSFETs
  185. Bypass Balance Pot
  186. Power Amplifier WITHOUT compensation
  187. Voltage amplifier: V -Ro> 1k (4Vp) and Phone -Ro = 32R
  188. Kenwood KM208
  189. Step Response Simulation for SSPA
  190. Is kit for the Hafler xl280 worth the $?
  191. Help Fixing Technics SU-V4X
  192. Modify amp from voltage to current feedback for low Qts drivers
  193. Crest 8001 Pro, randomly in protect, need help
  194. Harman/Kardon HK870 blowing fuses
  195. Audiolab 8000a volume control repair
  196. A power steering for the output
  197. Cambridge Audio 640A Overheating / Distortion
  198. Ferguson stereo casseiver model # 3926 - year 1979
  199. What to connect to earth ground?
  200. Fixing an NAD 216 making chirpy sounds
  201. Elektor Equa Amplifier
  202. Sony TA343 Crackling
  203. Giesberts HEXFET AMP Problem
  204. Help with a toshiba 2SA1943 & 2SC5200 subwoofer amplifier shorten
  205. CYRUS 2 VERSION 07 REPAIR IN JAPAN
  206. Amplifier with 2 AA battery
  207. Transistors equivalent for amplituner
  208. QSC MRX 2450
  209. im newbee
  210. Amp-Speaker
  211. Re: Balance to Un-Balance Converter
  212. NAD AV 713 right channel bad
  213. difference between rectifier and solid state rectifier
  214. DC-Servo Vs. Speaker protection with relay
  215. PHASE LINEAR 4000 pre amp
  216. Sony TA3200f Issue
  217. MJE15032/33 Genuine or Fake??
  218. Conversion from TO3 to TO220
  219. Need a frequency controlled voltage source!
  220. pioneer sx1010
  221. Nakamichi Amp Model IA-1z Ok to use in US?
  222. Current Sources in audio amplifier
  223. Amp not playing as loud any more
  224. Peavey puzzle?
  225. Crown Macro-Tech Schema & Bias
  226. Parts-bin SS build
  227. Voice Coil as sensor for control.
  228. Yamaha M-65 wont power on
  229. WTD Arcam Alpha 2 knobs
  230. Volume control for 4 x JBL GTO 12v amps
  231. common base amplifier with Jfet IN
  232. P3A DC calculations problems
  233. Hiraga : yet another design
  234. Rockford Fosgate 1500 Problem
  235. Heatsink vs heatsink + fan.
  236. High frequency parasitic oscillations in IRFP240 9240? necessity to avoid them?
  237. Is this amplifier faulty?
  238. how much bias currents possible with lme49830?
  239. Bias current influencing compensation?
  240. NE5534 Bal/Comp Pins?
  241. adcom 5800 bias setting
  242. Guitar ABY advice
  243. NAD 3020 preamp
  244. Servo design for a tangential tonearm
  245. MM preamp coupling cap value
  246. fT vs ic of BJTs
  247. Adcom 585 SE Schematics
  248. Problems with stability in simulation
  249. does a single pair of 5200 1943 total 2 needs matching?
  250. Power Buffer with Jfet IN and CFP OUT

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