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  1. Quad 405 amplifier
  2. Trying to test Hafler dh-500 mosfets
  3. Repairing ElectroVoice CPS4 -- need schematic!!
  4. Noisy phono stage on vintage Pioneer SX-434
  5. LIN LK-85 SOUNDING TINNY AND FLAT
  6. Multiple feedback LP filter ?? Help??
  7. Dynaco PAT-4 input questions
  8. H/K AVI 200 & Sony STR-525 Amp Problem???
  9. DC Coupled amplifier capacitor vlaues
  10. How to measure/trigger/view low level 60/120hz hum?
  11. How did I blow this fisher BA6000
  12. What does the volume knob do - stupid newbie
  13. Stability analysis of EF output stages
  14. Good power amplifiers 6W---25W4R
  15. GNOSYS amplifier - Future come true
  16. The dark side of constant power amplifiers (and similar schemes)
  17. Help Transistor equivalents
  18. Luxman Amp problem.
  19. Snuber question
  20. Rega Elicit, need repair help.
  21. KENWOOD KA-7300 NOT SATISFIED
  22. good pre-amp for 300$
  23. Naim NAP90 - loud hum when no input connected
  24. Advice on choosing a new ~20W Project
  25. minimum inout circuit for testing
  26. Problem With Pioneer Receiver
  27. 2 Preamps on 1 PCB ?
  28. Recapping Quad 99 - simple question..
  29. AC coupled feedback
  30. OK it's late and I need to call it quits.
  31. Event 20/20 Bas
  32. Acousto-electro guitar amp - speakers impedance
  33. pa amp repair.
  34. FET Static Power Dissipation
  35. Best 2N3055 alternatives
  36. what is this amp really - "Digitech" AS-0476
  37. Midrange attenuation of 4-5dB needed
  38. Help to calculate the amplifier
  39. Need help on Yamaha AX-440
  40. NAD 208 arbitrarily into protect mode - more commen when hot
  41. printed datasheets
  42. Miller Compensation Capacitor vs Slew Rate
  43. I need help with a transformers issue
  44. NEED HELP FOR NAD C-320 INT. AMP
  45. Replacing caps in my hk770
  46. Alternatives to transistor BF247A
  47. Amp's output DC comes and goes, any suggestions?
  48. Amc Transformers
  49. Marantz PM68 tweak
  50. Technics SA-404 running hot!
  51. Adcom 545ii problems
  52. About 10-14W Class A amplifier
  53. Need help with SC480 Build
  54. Need a little help with a L 20 amp
  55. Pioneer SX-1050 Re-Capping - Film or Electrolytic??
  56. This meter pegs but amp works fine
  57. Amp woes... Denon POA2400.
  58. Amp woes... Denon POA2400.
  59. Accuphase e-202 relay
  60. OPA7 discrete op-amp modern design
  61. Subamp with ~ 1000 W RMS at 4 Ohms, built at low cost
  62. Building a DJ mixer
  63. Where to buy heatsink for power amp?
  64. NAD T762 Plays analog CD with the Tuner
  65. Help repairing Pioneer M3
  66. dc output protection
  67. Burning in a Transistor amp, does it change anything?
  68. driver emitter resistors.
  69. method of the coherent triplet
  70. Creek Integrated Amp 5250SE -various Versions for Input Selector Switches
  71. QSC A21 bias?
  72. help me get info about a transformer that comes from a Crown XLS 202 PA amp
  73. help me get info about a transformer that comes from a Crown XLS 202 PA amp
  74. NAD 3020A Constant Hum
  75. two opposed transistors to clamp audio signal
  76. headbanger amp
  77. adjust bass boost frequency
  78. Better way of installing gate stopper resistors?
  79. Hi Fi AB amplifier for Powered Speaker
  80. Will these speakers work?
  81. MOSFET gate resistors, carbon?
  82. power handling of output stage emittrer resistors
  83. Buffer & Amp experiment
  84. McIntosh MC2100 question
  85. Runing Quasi's NMOS200 @ 2ohm ?
  86. Soundcraftsmen help
  87. Good old technology?
  88. SC480 Amp Power Supply and Voltages
  89. power resistors in power amps
  90. simple diamond mirror preamplifier
  91. My Amp Collection
  92. battery powered power amps
  93. Rotel RA-970BX problems
  94. help with preliminary calculations
  95. CA9 SCHEMATIC NEEDED
  96. Panasonic SU-2700 Repair (Otherwise known as the Technics SU Z1)
  97. 150W > cheap, simple, bass power amp?
  98. Nad C320 slow warm up
  99. Luxman L-530 damping factor
  100. Marantz PM-230 Amp repair help - Input selector?
  101. Voltage regulator adjustment
  102. Replace a balance pot with resistor?
  103. quasi-balanced working method
  104. My 10W class AB Amplifier
  105. Chassis grounding a Accuphase e-202
  106. Type of outputtransistors in a Classé Audio DR-3
  107. My first PCB - some help needed
  108. Focusrite Voicemaster Preamp Repair Advice
  109. Luxman L11 service manual wanted
  110. Not enough power from my amplifier?
  111. Is it overheating?
  112. Carver M1.5t Output Devices...
  113. SpeakerCraft BB2125 - burnt resistors
  114. Looking for a complete DIY amp
  115. Kenwood KA-3500 Integrated Amp DC Offset / BIAS Adjust confusion
  116. Buffer help needed
  117. How much power for an initial experimentation
  118. Cerwin Vega SUB-150 Loud Hum
  119. Denon PMA-250 amplifier - volume issue
  120. need help repairing ppi 4400m
  121. PV 2000
  122. Accumulator power, stabs free
  123. LME49830 non audio application
  124. Stacking op-amps - pros and cons.
  125. Vintage V-FET Amps - Where Has All The Interest Gone?
  126. Kenwood KA-3500 bias adjustment
  127. help for MARANTZ MA-9S2 schematic
  128. Easy way to listen to power amp via headphones
  129. Amplifier with nested Miller compensation
  130. Audio Sonic ST-500 integrated
  131. Help on Sansui amp board
  132. The Pulley amplifier - Wilson mirror
  133. Replacing TO3 transistor insulators
  134. Dynaco Stereo 400 Headache
  135. Crimson Elektrik Literature from 1979
  136. Any kit/board suggestions?
  137. What about this amp-CFA or VFA?
  138. 400w high fidelity diy amp, where can I find them?
  139. LM317/337 causing problems with my amp? Hegel H1
  140. Negative Feedback Caps - Bipolar OK?
  141. DC Offset readings?
  142. Potting the input stage changes tone?
  143. Elektor Preamp 2012 (Douglas Self) Mini, low budget
  144. "Simple" CF amplifier circuit...
  145. Fujitsu 5200 power transistors in TO220 packaging?
  146. 2 preamps in the same poweramp
  147. Recapping of SS amplifier
  148. Mic preamp for dynamic mics, any glaring errors ?
  149. Unknown mosfet amplifier
  150. More current mirror confusion
  151. Have power need a kit
  152. Why is the output of the IPS LTP considered a current output?
  153. Crescendo Elektor Modify Suggestions
  154. Strange crackle in my Rega Mira
  155. Naim Nait 2. Gone very quiet.
  156. Rotel AV amp for 2-channel?
  157. Adding gain to INA134 ?
  158. how to test a vi limiter
  159. Mark Levinson 26 questions
  160. Multisim transistor models needed.
  161. Latest project 500 watt class AB in a PC case.
  162. fuse // cap for basic passive speaker protection ?
  163. Lateral Mosfet Amplifier Design
  164. Min DIN
  165. 25W Mosfet Amp troubleshooting
  166. Hill DX 3000 low power
  167. Leach SuperAmp with 2/4 extra pair of output devices?
  168. Albarry m408 upgrade questions...
  169. Is NJM4580D an upgraded NJM4560D ?
  170. Current mirror load in a LTP
  171. Need suggestion
  172. Assembled DIY Phono Amp OPA2134PA on Ebay
  173. PHASE LINEAR 4000 PRE
  174. NAD 916 DC offset correction ?
  175. BD139 Odd problem- NAD 3140
  176. Power Decoupling & Hum Noise
  177. Respectable THD levels for double EF Amp
  178. Kenwood ka-801 Help how to remove current limiter SOA
  179. Fender BXR 60 bass amp buzz (preamp section)
  180. 140V/us
  181. ANYONE WITH CYRUS 2 VERSION 7?
  182. Trouble with Denon Avr 5805
  183. someone can help me to analyze this circuit?
  184. Philips FR675 repair: replace 2SC2240 with ZTX458
  185. Why is my amp oscillating ?
  186. Crimson Elektrik PCB's
  187. Carver M1.5 Crackle Noise
  188. End resistors Cyrus 8v2 mod
  189. Would an 12v to 240v inverter run an amp?
  190. Is there any place need to improve in this power amplifier
  191. My dream amplifier, wished I knew how to make it.
  192. Repair of Onkyo TX-SR506 (One transistor blown)
  193. Wanted! 12AU7-Mosfet hybrid from Musen to Jikken
  194. More than 25watts realy needed ?
  195. Marantz 2385 problem
  196. Correct way for PSU?
  197. Turn on pop Rockfosgate Hafler
  198. How do you solder this 24pin SMD IC+
  199. Computing output impedance (Cordell's book)
  200. How to reset NAD AV 713?
  201. Service manual Nad AV 713?
  202. NAD 2600A Modification Question
  203. Is this preamp circuit OK?
  204. ringing with squarewave
  205. Matching MOSFETs
  206. Bypass Balance Pot
  207. Power Amplifier WITHOUT compensation
  208. Voltage amplifier: V -Ro> 1k (4Vp) and Phone -Ro = 32R
  209. Kenwood KM208
  210. Step Response Simulation for SSPA
  211. Is kit for the Hafler xl280 worth the $?
  212. Help Fixing Technics SU-V4X
  213. Modify amp from voltage to current feedback for low Qts drivers
  214. Crest 8001 Pro, randomly in protect, need help
  215. Harman/Kardon HK870 blowing fuses
  216. Audiolab 8000a volume control repair
  217. A power steering for the output
  218. Cambridge Audio 640A Overheating / Distortion
  219. Ferguson stereo casseiver model # 3926 - year 1979
  220. What to connect to earth ground?
  221. Fixing an NAD 216 making chirpy sounds
  222. Elektor Equa Amplifier
  223. Sony TA343 Crackling
  224. Giesberts HEXFET AMP Problem
  225. Help with a toshiba 2SA1943 & 2SC5200 subwoofer amplifier shorten
  226. CYRUS 2 VERSION 07 REPAIR IN JAPAN
  227. Amplifier with 2 AA battery
  228. Transistors equivalent for amplituner
  229. QSC MRX 2450
  230. im newbee
  231. Amp-Speaker
  232. Re: Balance to Un-Balance Converter
  233. NAD AV 713 right channel bad
  234. difference between rectifier and solid state rectifier
  235. DC-Servo Vs. Speaker protection with relay
  236. PHASE LINEAR 4000 pre amp
  237. Sony TA3200f Issue
  238. MJE15032/33 Genuine or Fake??
  239. Conversion from TO3 to TO220
  240. Need a frequency controlled voltage source!
  241. pioneer sx1010
  242. Nakamichi Amp Model IA-1z Ok to use in US?
  243. Current Sources in audio amplifier
  244. Amp not playing as loud any more
  245. Peavey puzzle?
  246. Crown Macro-Tech Schema & Bias
  247. Parts-bin SS build
  248. Voice Coil as sensor for control.
  249. Yamaha M-65 wont power on
  250. WTD Arcam Alpha 2 knobs

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