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  1. No global feedback preamplifier
  2. x5 preamp circuit
  3. Simple Circlotron with power Mosfets
  4. Amp hum when RCA cable is connected
  5. Audio/video sync. Little help please?
  6. Class i and siblings
  7. Integrated Amp repair / conversion
  8. 2SA1102 vs 2SA1104 with 2SC2577
  9. ST151 100W AMP
  10. Cheating with microphone calibration
  11. DIY Amp
  12. PASS ALEPH 0s Capacitors replacement
  13. Marantz PM-440 service manual needed please!
  14. solid state ...forum people
  15. KSA 250 HELP!!!
  16. GFA-535 Brown gunk on output board
  17. Yet another broken NAD 3020 thread
  18. OCM 500 power amp - I need a copy of owner's manual...
  19. Need schematic KEF 25B sub amp SP2298
  20. nad 3020 overhaul/mod questions
  21. what opamp for lowpass filter?
  22. Non-complementary class AB linearized amp
  23. Speaker Protection Board Input Voltage Handling
  24. Power supply for balanced input stereo amplifier
  25. Transistor role in amplifier ? Properties
  26. RG59 for interconnect ( disscusion )
  27. DIY IMD Analyzer
  28. sprint pcb software
  29. 20W Blameless Class A
  30. Replacement Transformer for Quad 405
  31. Can anyone ID this amp? (there's no prize)
  32. Help finding service manual for cambridge 640r
  33. Sansui AU555
  34. hep, Parasound pfet 900II
  35. Ribbon poweramplifier
  36. Are you interested to improve cheap amplified speaker?
  37. Optimos - My Version
  38. APSA - The Analog Sound Processing Amplifier
  39. Cyrus 2 No balance
  40. Yamaha M60 modifications?
  41. Replacement for Motorola MPS-U10?
  42. 20KW POWER AMP SCHEMATIC
  43. Bi-amping with 2 integrated amplifiers
  44. Harmon Kardon HK560 repair
  45. Bose 1800: DC Offset Issues
  46. Power mosfet DIY topologies of tube ampli Single-ended
  47. Discrete or IC regulation power supply
  48. Federmann preamplifier
  49. ATI 1502 two-channel stereo Power amplifier
  50. Conditioning, Hipotting (Hi-Pot) Film Capacitors
  51. Updating Leach FET preamp: New transistors?????
  52. NAP90 Distortion Problem
  53. HK 770 pwr amp input caps - Replacement suggestions
  54. Velodyne ct-80 project
  55. Musical Fidelity transistors SM8605 SM8610
  56. Help understanding amplifier diagram.
  57. Improving Technics SU-8080
  58. Power Amp PCB Power distribution
  59. Parasound amps...
  60. Input impedance-Balanced operation
  61. Amplifiers: Building Vs Buying
  62. Roender's FC-100 prototype and builder's thread
  63. Amp for 16 ohm headphones (MDR-EX71SL)?
  64. Rockford boosted rail amplifier
  65. Questions about Transistors with high beta (hfe) up to 3000 without Darl.-Topology
  66. High Power Amplifier
  67. Powering Opamps???
  68. Fixing the dead Luxman R-117: need some help.
  69. Clean amplifier P8W4R, P4W8R
  70. [NEWBIE]Amplifier Design[NEWBIE]
  71. CM Labs CC-2 Preamp Repair/Upgrade
  72. SWTPC Repair/Upgrade
  73. Levinson ML-2 Cap Upgrade Audio- and Regulator card
  74. Turn on pre driver stage first or output stage first??
  75. Amplifier mains hum help
  76. NAD C372 Leaking Capacitors???? Help Please!
  77. Crossover distortion in push-pull
  78. Please recommend an amazing amp for beginner :)
  79. Front End DC Operating Point Current Magnitudes
  80. upc1237 supply question
  81. recommended 200-300watts / channel amplifier for HT?
  82. Krell Schematics for FPB series available on CD-ROM
  83. Modding Dayens Ampino
  84. Cambridge Audio P55 Schematic
  85. Mr Gromer LNA-1 opamp - 2SC2239BL equivalent
  86. Help needed for Adcom gfp-1A preamp
  87. Inkel MA920 CIRCUIT
  88. No heat sinks!
  89. HH electronic V-S Bassamp, diagram wanted
  90. Amplifier Transistor Replacement Help
  91. Part sub for MOSFET gurus
  92. Nakamichi SR-4A Idle Current Procedure
  93. Replacement Volume Control For Marantz PM 66 KI
  94. RCA Power Transistors BD750, BD751, BD550, BD550A, BD550B Data Sheet wanted
  95. Can a heatsink be too big?
  96. MARANTZ 2500 250w/ch receiver
  97. Threshold 800A amplifier versions
  98. circuit diagram for cambridge A70 power amp
  99. Self-cascoding, a tool for creating ultra high voltage building blocks:
  100. CC-CB cascade variations
  101. cheap big binding posts for metal chassis
  102. Luxman LV103u replacing output FET's
  103. Luxman L85V - Replace 2SA679-NTE280/81
  104. crow d150
  105. Behringer BXL900 Schematic needeed!
  106. sony ta-fb940r qs,left channel hardly there.
  107. HAL PREAMPLIFIERS
  108. Ebay kit diamond differential power amp
  109. High input impedance BJT preamplifer
  110. How to Bypass Relay on Sub Amp?
  111. Bandpass filters in audio circuit of communications receiver?
  112. Sony TA-313 vs Sony TA-F4A........which one???
  113. Help me identify the damage. Tivoli Model 1
  114. Mission Cyrus One - Volume Help Needed
  115. Troubleshooting a Denon 3802
  116. Hello! a few questions on the JLH 1969
  117. Buying a NAD 3020 in the seventies
  118. Sony STR-DE897 receiver - No power
  119. op-amp what voltage to use?
  120. Buzz diminishing with raised volume?
  121. Rod Elliot P3A Layout - Critics
  122. Another free PCB project: JLH headphone amplifier
  123. should i have a dc voltage across my spring rev. input?
  124. Interesting Site
  125. yamaha CA-510 amplifier power supply issue
  126. Hill Audio Multimix
  127. Diagnosing & Fixing a Ground Problem
  128. james bongiorno Amp. question
  129. Abnormal Clipping Need Help~~~
  130. Anyone else using an older flagship receiver for active amplification?
  131. RCA stav - 3990 powering off
  132. help:schematics for a Denon SA-3350 int amp
  133. Leak Stereo 30 Overhaul... Worth it?
  134. Solid State Amplifier - Overview of all Canadian Companies wanted
  135. Linear Audio Inc. - currently Website wanted
  136. Arcam Alpha 9p blowing fuse
  137. Burnt power transistor
  138. SE Mosfet line stage with transformer output
  139. Please help me troubleshoot Niles Audio SI-1230 12 channel amp
  140. Help A Dummy: in simple language please.
  141. don't try this AMP at home
  142. Resistor Identification Help
  143. Suggestions to replace ?
  144. composit amplifier NE5534 swap
  145. JFET Phono Pre-amp clipping
  146. very heavy J-fet
  147. Switch to run a pair of speakers from 2 amps
  148. Dr. Leach Amplifier (commercially being sold?)
  149. A760II schematic needed
  150. question about germanium based amps
  151. A certain HAL Amplifier
  152. help split power supply
  153. Zero negative feedback
  154. pioneer a 88x can it be tweeked ??
  155. Multiple transistor heat dissipation.
  156. CXA1297P Specs
  157. Hawksford cascode experiences please
  158. Mute Logic for LDR volume control
  159. Amplifier project
  160. Substitute for BUK437 MOSFET
  161. How do i calculate the impedance?
  162. Static on Right Channel Realistic SPA-100
  163. 2sa970 - 2SC2240 replacement in SOT23 ?
  164. Bryston 2B, buzz.
  165. Australian Mosfet amplifier
  166. Is the PCB ok?...
  167. Marantz SR4120 not holding station presets
  168. bk st-140 burned resistors
  169. Pioneer SX-424 QUestions!
  170. Disturbing noise from a channel!!
  171. Heatsink top quality!
  172. help with mic preamp
  173. New to this... modded Acurus A250 w/issues
  174. Help cannot identify Amplifier Power transistor
  175. Problem with Fender Frontman 212R amp
  176. Unique way of muting for thump prevention, outside audio path.
  177. Schematics of Luxman L-505u?
  178. 2sc2240 as 2sc458 replacement
  179. Dx MkIII boards.
  180. Need schematic for Denon pma 250
  181. CFP Buffer
  182. Electrocompaniet aw-100dmb
  183. LM1877
  184. Fisher Amplifier Question
  185. What is difference between two circuits
  186. Measuring caps without ESR
  187. dx amp 33v psu
  188. Crown psa-2 Problem
  189. DC servo
  190. "Inverted" (not 'Inverting') Output Stage
  191. Rega Elex problem pointer
  192. Rega Mira Clamshell ~ circuit required
  193. Faulty HH Electronics MXA100
  194. Exicon lateral MOSFETs
  195. ESS Preamp + Amp Repairs Question?
  196. Amp repair help
  197. Halcro
  198. Hafler DH 500
  199. QUAD 520f dc offset
  200. Twin mono by combining stereo outputs
  201. "State-Of-MOS": 200W Ultra Low Distortion Pure FET Amplifier
  202. New project....Sony STR6065, Schematics needed!
  203. My JLH-2005
  204. Carver M-500t repair help.
  205. portable ipod dock question
  206. Phase Linear 300 (series2) output transistors.
  207. Coupling caps on long wires
  208. need help akai aa 1200 reciever
  209. What kind of BGW's final amp. module, is this ?
  210. clean 11 Vrms for 600ohm load
  211. JBL 5234A vs 5234 Frequency dividing networks
  212. AMPLIFIER beginner questions..
  213. Neg Rail on JLH Amp Output
  214. Fet based phase splitter?
  215. boom box idea
  216. NAD P2100 amp with power envelope
  217. output transformer for on solid state dual channel for THD reduction
  218. 5.1 amplifier speaker protection
  219. Chevin Research A1000 schematic required.
  220. Who can give me a version of filter pro 2.0
  221. My invention ? Did I invent this amp ?
  222. Help needed: speaker internal amp blows fuse
  223. Budget DIY Pre-amp with MP3 Player (and FM Tuner)
  224. Overview of Solid State Amplifier Brands from where it is impossible to get Schematic
  225. Overview of all Solid State Amplifier Brands, where are SM's/Schematics available
  226. Nad 3020 Modification from 1982
  227. O2 power on trouble
  228. Leach amp powering up trouble
  229. Arcam Alpha 5 Amp - Replace Alps Switch Button
  230. Rewiring transformer on a McCormack dna for 220v
  231. PS 2 Input Components ..
  232. Re: Re-adjust the Bias of Power Amp
  233. Hissing amplifier (in Meridian M10s) help, please.
  234. Can I increase capacitance on these TONE BOARD caps?
  235. Class D amp modules
  236. PS Audio 100C care, feeding, speaker cables?
  237. Home Theater Receiver crossover network
  238. Looking for SAE items to purchase
  239. L20 V8
  240. Creek 4040s1 strong buzz in one channel
  241. 12 Watt amp, guidance required
  242. Nakamichi CA-7A Clicking sound
  243. where to buy?
  244. Here's a challenge....
  245. left channel won't work on JVC integrated amp
  246. KRELL FBP 200
  247. Stereo IC amplifier for better quality?
  248. Mini Class-A SE amplifier needed
  249. BJT, MOSFET or JFET? Which sound better in class-A
  250. F2J schematic needed

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