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  1. QSC A21 bias?
  2. help me get info about a transformer that comes from a Crown XLS 202 PA amp
  3. help me get info about a transformer that comes from a Crown XLS 202 PA amp
  4. NAD 3020A Constant Hum
  5. two opposed transistors to clamp audio signal
  6. headbanger amp
  7. adjust bass boost frequency
  8. Better way of installing gate stopper resistors?
  9. Hi Fi AB amplifier for Powered Speaker
  10. Will these speakers work?
  11. MOSFET gate resistors, carbon?
  12. power handling of output stage emittrer resistors
  13. Buffer & Amp experiment
  14. McIntosh MC2100 question
  15. Runing Quasi's NMOS200 @ 2ohm ?
  16. Soundcraftsmen help
  17. Good old technology?
  18. SC480 Amp Power Supply and Voltages
  19. power resistors in power amps
  20. simple diamond mirror preamplifier
  21. My Amp Collection
  22. battery powered power amps
  23. Rotel RA-970BX problems
  24. help with preliminary calculations
  25. CA9 Schematic needed
  26. Panasonic SU-2700 Repair (Otherwise known as the Technics SU Z1)
  27. 150W > cheap, simple, bass power amp?
  28. Nad C320 slow warm up
  29. Luxman L-530 damping factor
  30. Marantz PM-230 Amp repair help - Input selector?
  31. Voltage regulator adjustment
  32. Replace a balance pot with resistor?
  33. quasi-balanced working method
  34. My 10W class AB Amplifier
  35. Chassis grounding a Accuphase e-202
  36. Type of outputtransistors in a Classé Audio DR-3
  37. My first PCB - some help needed
  38. Focusrite Voicemaster Preamp Repair Advice
  39. Luxman L11 service manual wanted
  40. Not enough power from my amplifier?
  41. Is it overheating?
  42. Carver M1.5t Output Devices...
  43. SpeakerCraft BB2125 - burnt resistors
  44. Looking for a complete DIY amp
  45. Kenwood KA-3500 Integrated Amp DC Offset / BIAS Adjust confusion
  46. Buffer help needed
  47. How much power for an initial experimentation
  48. Cerwin Vega SUB-150 Loud Hum
  49. Denon PMA-250 amplifier - volume issue
  50. need help repairing ppi 4400m
  51. PV 2000
  52. Accumulator power, stabs free
  53. LME49830 non audio application
  54. Stacking op-amps - pros and cons.
  55. Vintage V-FET Amps - Where Has All The Interest Gone?
  56. Kenwood KA-3500 bias adjustment
  57. help for MARANTZ MA-9S2 schematic
  58. Easy way to listen to power amp via headphones
  59. Amplifier with nested Miller compensation
  60. Audio Sonic ST-500 integrated
  61. Help on Sansui amp board
  62. The Pulley amplifier - Wilson mirror
  63. Replacing TO3 transistor insulators
  64. Dynaco Stereo 400 Headache
  65. Crimson Elektrik Literature from 1979
  66. Any kit/board suggestions?
  67. What about this amp-CFA or VFA?
  68. 400w high fidelity diy amp, where can I find them?
  69. LM317/337 causing problems with my amp? Hegel H1
  70. Negative Feedback Caps - Bipolar OK?
  71. DC Offset readings?
  72. Potting the input stage changes tone?
  73. Elektor Preamp 2012 (Douglas Self) Mini, low budget
  74. "Simple" CF amplifier circuit...
  75. Fujitsu 5200 power transistors in TO220 packaging?
  76. 2 preamps in the same poweramp
  77. Recapping of SS amplifier
  78. Mic preamp for dynamic mics, any glaring errors ?
  79. Unknown mosfet amplifier
  80. More current mirror confusion
  81. Have power need a kit
  82. Why is the output of the IPS LTP considered a current output?
  83. Crescendo Elektor Modify Suggestions
  84. Strange crackle in my Rega Mira
  85. Naim Nait 2. Gone very quiet.
  86. Rotel AV amp for 2-channel?
  87. Adding gain to INA134 ?
  88. how to test a vi limiter
  89. Mark Levinson 26 questions
  90. Multisim transistor models needed.
  91. Latest project 500 watt class AB in a PC case.
  92. fuse // cap for basic passive speaker protection ?
  93. Lateral Mosfet Amplifier Design
  94. Min DIN
  95. 25W Mosfet Amp troubleshooting
  96. Hill DX 3000 low power
  97. Leach SuperAmp with 2/4 extra pair of output devices?
  98. Albarry m408 upgrade questions...
  99. Is NJM4580D an upgraded NJM4560D ?
  100. Current mirror load in a LTP
  101. Need suggestion
  102. Assembled DIY Phono Amp OPA2134PA on Ebay
  103. PHASE LINEAR 4000 PRE
  104. NAD 916 DC offset correction ?
  105. BD139 Odd problem- NAD 3140
  106. Power Decoupling & Hum Noise
  107. Respectable THD levels for double EF Amp
  108. Kenwood ka-801 Help how to remove current limiter SOA
  109. 140V/us
  110. ANYONE WITH CYRUS 2 VERSION 7?
  111. Trouble with Denon Avr 5805
  112. someone can help me to analyze this circuit?
  113. Philips FR675 repair: replace 2SC2240 with ZTX458
  114. Why is my amp oscillating ?
  115. Crimson Elektrik PCB's
  116. Carver M1.5 Crackle Noise
  117. End resistors Cyrus 8v2 mod
  118. Would an 12v to 240v inverter run an amp?
  119. Is there any place need to improve in this power amplifier
  120. My dream amplifier, wished I knew how to make it.
  121. Repair of Onkyo TX-SR506 (One transistor blown)
  122. Wanted! 12AU7-Mosfet hybrid from Musen to Jikken
  123. More than 25watts realy needed ?
  124. Marantz 2385 problem
  125. Correct way for PSU?
  126. Turn on pop Rockfosgate Hafler
  127. How do you solder this 24pin SMD IC+
  128. Computing output impedance (Cordell's book)
  129. How to reset NAD AV 713?
  130. Service manual Nad AV 713?
  131. NAD 2600A Modification Question
  132. Is this preamp circuit OK?
  133. ringing with squarewave
  134. Matching MOSFETs
  135. Bypass Balance Pot
  136. Power Amplifier WITHOUT compensation
  137. Voltage amplifier: V -Ro> 1k (4Vp) and Phone -Ro = 32R
  138. Kenwood KM208
  139. Step Response Simulation for SSPA
  140. Is kit for the Hafler xl280 worth the $?
  141. Help Fixing Technics SU-V4X
  142. Modify amp from voltage to current feedback for low Qts drivers
  143. Crest 8001 Pro, randomly in protect, need help
  144. Harman/Kardon HK870 blowing fuses
  145. Audiolab 8000a volume control repair
  146. A power steering for the output
  147. Cambridge Audio 640A Overheating / Distortion
  148. Ferguson stereo casseiver model # 3926 - year 1979
  149. What to connect to earth ground?
  150. Fixing an NAD 216 making chirpy sounds
  151. Elektor Equa Amplifier
  152. Sony TA343 Crackling
  153. Giesberts HEXFET AMP Problem
  154. Help with a toshiba 2SA1943 & 2SC5200 subwoofer amplifier shorten
  155. CYRUS 2 VERSION 07 REPAIR IN JAPAN
  156. Amplifier with 2 AA battery
  157. Transistors equivalent for amplituner
  158. QSC MRX 2450
  159. im newbee
  160. Amp-Speaker
  161. Re: Balance to Un-Balance Converter
  162. NAD AV 713 right channel bad
  163. difference between rectifier and solid state rectifier
  164. DC-Servo Vs. Speaker protection with relay
  165. PHASE LINEAR 4000 pre amp
  166. Sony TA3200f Issue
  167. MJE15032/33 Genuine or Fake??
  168. Conversion from TO3 to TO220
  169. Need a frequency controlled voltage source!
  170. pioneer sx1010
  171. Nakamichi Amp Model IA-1z Ok to use in US?
  172. Current Sources in audio amplifier
  173. Amp not playing as loud any more
  174. Crown Macro-Tech Schema & Bias
  175. Parts-bin SS build
  176. Voice Coil as sensor for control.
  177. Yamaha M-65 wont power on
  178. WTD Arcam Alpha 2 knobs
  179. Volume control for 4 x JBL GTO 12v amps
  180. common base amplifier with Jfet IN
  181. P3A DC calculations problems
  182. Hiraga : yet another design
  183. Rockford Fosgate 1500 Problem
  184. Heatsink vs heatsink + fan.
  185. High frequency parasitic oscillations in IRFP240 9240? necessity to avoid them?
  186. Is this amplifier faulty?
  187. how much bias currents possible with lme49830?
  188. Bias current influencing compensation?
  189. NE5534 Bal/Comp Pins?
  190. adcom 5800 bias setting
  191. NAD 3020 preamp
  192. Servo design for a tangential tonearm
  193. MM preamp coupling cap value
  194. fT vs ic of BJTs
  195. Adcom 585 SE Schematics
  196. Problems with stability in simulation
  197. does a single pair of 5200 1943 total 2 needs matching?
  198. Power Buffer with Jfet IN and CFP OUT
  199. Suggestions for output transistors
  200. PeeCeeBee
  201. Driving capacitive loads
  202. Pioneer A400 - After Plugging Headphones In No Signal On RH Channel
  203. 18V Class A
  204. Alesis RA-100 Repair
  205. dynamic bias
  206. Simple transparent amazing buffer
  207. Forte Model 3 Bias
  208. bias/idle current adjusting
  209. Rd or Rs on MOSFET output
  210. MJL3281A/MJL1302A vs MJL4281A/MJL4302A, which will be better?
  211. High value current source design for thermal stability
  212. Has anyone had any experience with Atlas DCA55
  213. JVC rx309 no output
  214. How to Match SAP series Darlington Transistors
  215. Help Loking to get SAP-15 NO/PO Matched?
  216. Want to tap line level off of a reciever. Help me id these pins?
  217. Question about trim pot leads
  218. Amp design pitfalls to avoid, General Thoughts?
  219. About amps power consumption
  220. Tone control using LPF,HPF,BPF
  221. Sherwood RD-6405
  222. Can anybody help me? This amp oscillate at 10MHz?
  223. Help understanding bias spreader
  224. Carver tfm 45 capacitors
  225. How to solder mute pins on 4 pin Jumper Block
  226. SMPS powered JLH 69 - quick and dirty results
  227. opinions about my design of a complete HI-FI system
  228. 95v voltage regulator for lme49830?
  229. YS Sound Balancing Workshop Limited
  230. RGN and RGP after RQ?
  231. What may prevent Output Relays from opening?
  232. rx-v2090
  233. Measuring the voltage rails of an amplifier.
  234. 1988 Yamaha ax 700 intgrated amp
  235. Where do i get hold of MPS8599/MPSA56 in europa?
  236. Denon DRA 345R problem
  237. Pioneer M72 Schematic
  238. does a Vbe multiplier effects the sound quality for IRFP240 9240?
  239. Capacitor ID
  240. Reducing output of pre-amp
  241. Tone control 3 bands
  242. Jamo MPA-201
  243. help troubleshooting Fisher 440T
  244. Regulator with floating ground and speaker protection
  245. Sony STR-D315 Repair/troubleshooting
  246. 60-0-60V ps
  247. jjh amp like jlh1969 mos
  248. Same question, different year
  249. JJH amp LIKE MOS jlh
  250. TIP 120/125, any simple amps ?

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