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  1. Harman-Kardon HK6250
  2. Please Help with capacitor replacement
  3. awb50 ,a simple power amp
  4. Cyrus III power amp schematic here, but schematics of the later models wanted
  5. I am proud to announce the Dx-M, 300 wiskies of power with a very low distortion
  6. Modding Quad 44
  7. MosFet Relays
  8. replacement 2sa1142p
  9. musical fidelity MFXA50 DIY
  10. Schematic needed
  11. Issues with Superscope BLA-530 by Marantz
  12. biasing my kenwood 6140A
  13. Disimproved NAD 304
  14. Old amp upgrades?
  15. Sourcing parts from old amps.
  16. just got a free RLSTC STA-2000. recap?
  17. Bell PSX6022 or PSX5022 urgent
  18. Max voltage of 2SK170?
  19. Boss Riot R735 in protection mode
  20. I need more bass!
  21. Ultra high precision digital control attenuator
  22. Does anyone know what transformer was used in the Adcom GFA-585 power amp?
  23. B & K Pro10MC
  24. Reaction-cons.
  25. The most modern ancient design, Doctor Self, maybe Curl , teenagers that time...
  26. MPSU07/57 replacements
  27. Hybrid SEPP Cascode TransNova High Zo Amp
  28. Crest Pro Series Bias? 10001
  29. What makes me believe that discrete is better
  30. onix oa21 problem
  31. the stupid question series: AC coupled balanced/unbalanced output, servo useful?
  32. Yamaha BX-1 monoblock
  33. Ratio of power into load and driver transistor
  34. AV800 again :D
  35. Searching 2 matched pairs 2sa1492 and 2sc3856
  36. DM/CM RFI filter on instrumentation opamp input
  37. GAS Thaedra/Thoebe phono stage adjust
  38. Running a tube preamp into a solid state preamp?
  39. Parasound HCA-1000A help needed
  40. Parallel output transistor matching
  41. BGR Blazer X10 1000W RMS Monoblock Power Amplifier
  42. P101 amp troubleshooting
  43. Question on opamps/mixing desks and production of CD's/records.
  44. Solid Solid State Power Amplifier
  45. Cleaning Switch in High-End Sony Preamp
  46. Roland SPA-240 amplifier
  47. JFET choice
  48. TOA A-1121 schematic
  49. PC simulation - what do you use?
  50. Help with this amp
  51. Bargraph and clip LED's
  52. Is this possible
  53. Best of eBays chinese offerings?
  54. LT spice DC .op function
  55. denon pma530 amp
  56. Adcom GFA 5500
  57. Simple Preamp with tone control problem.
  58. Analogue circuit analysis
  59. 5W Class A transistorized amp
  60. Zenith B935 console radio/record player
  61. help with repair of DC300A series II
  62. Heatsink insulator
  63. Stability of 2SK170 at small currents
  64. Electronic expert in Hereford wanted
  65. signal and chassis ground wiring with RCA and XLR
  66. CCS acting strange. What's wrong?
  67. Smouldering Amp, Help pls
  68. Power amp fault-any suggestions please?
  69. marantz pm94
  70. SS overheating? Can I mod it?
  71. Intel CPU heatsinks as power output transistor heatsinks?
  72. Simple 200 watt complimentary FET amplifier (possibly tube driver?)
  73. Zener diode test with dvom
  74. LTSpice tutorial
  75. Re: Sansui 3000A vs. Yamaha CA 1000 II Integrated Amp
  76. Signal path caps........
  77. amplifier kit in USA
  78. Electrocompaniet AW250 needs shematics or idea!
  79. Mark Levinson 336 adjustment problem
  80. HAFLER 9505: 110V rewirable for 220V?
  81. Who knows this amplifier
  82. The Black Box, Smith Cell
  83. diy heatsinks - please give some advices
  84. Problems in Onkyo receiver
  85. 'Best' amp concept for headphones w/ impedance ~8ohm
  86. Problems in Onkyo receiver
  87. RCA 40409 & 40410 Transistors
  88. Amplifier AVR200 seems to have a problem
  89. Bias stabilty tests.
  90. Baxandall diode information.
  91. équivalent de VC5022
  92. DIY speaker cable question
  93. VAS buffer
  94. Sansui AU 11000
  95. My Experience with HD600 vs AKG K701 vs Denon AH-D5000
  96. My "ExtremA" is Built. Whew.
  97. Crown Power-Tech 2 repair
  98. Anyone recognise this Design..? based on LME49810
  99. sima amplifier questions
  100. Problem with the bias of a Krell kst 100
  101. Technical Books Free Download
  102. Harman Kardon AVR 120
  103. suggestion for a 15W amplifier?
  104. Ib different in output-stage
  105. Ping balaboo
  106. need schematic drawing outlaw amplifier
  107. marantz pm94
  108. use 2 la4440 identical bridge circuit
  109. Channel Balance question??
  110. Phase Linear transistors drivers & finals
  111. Influence of the delay amplifiers for listening characteristics
  112. Phase Linear 400 transistor replacements
  113. blowtorch + symasym ?
  114. Harman Kardon Citation 12 distort sound
  115. Phase Linear 400 bridged mono?
  116. Buffer distortion?
  117. Bad day to be a capacitor
  118. Wildcard Power Amp dev. thread (SMD, Quasi NMOS, IRFP260, digital bias)
  119. Biamp CPA650 problems
  120. My nad L73 Receiver amp distorting bad!
  121. Pioneer SA 6500 into a Numark Tt-200....left speaker going off randomly! Help!
  122. "Push-Pull" for push und "Push-Pull" for pull (like Gamnut) - whats the right name?
  123. About LTSpice Simulation.
  124. Have somebody schematic from BGW 750G and newer models like X5600
  125. Toshiba 2SC5242 / 2SA1962 replacements?
  126. Harman Kardon Citation 12 crunchy low volume output
  127. Hybrid/buz900
  128. Emitter follower related question
  129. Car amplifier output transformer
  130. Leach amp questions
  131. Help Needed - Marantz 1060 dead channel
  132. Impedance, Schmedance....
  133. Preamp response curve
  134. My new SymAsym PCB design Rev_1.3
  135. Blew up JFET's on Preamp
  136. Direct Drive amplifier for DIY ribbon?
  137. My folded-cascode VAS linearity investigation
  138. driving paralleled mosfets in hybrid circuit
  139. Phase Linear 200II upgrade
  140. input impedance of mosfet question?
  141. A&R Cambridge A60 Amp left channel very low distorted
  142. nikko TRM-750
  143. Qs on Parasound HCA-1200 - Popping.
  144. Velleman Volume remote - tv, not hi-fi
  145. Spoeaker protection, project #33
  146. Need help with output stage
  147. PHONIC PWA 2200 schematic Needed
  148. Azur 640A v2 Service manual
  149. C.E.C AMP3300R (3300 R Amp 3300R Amp3300) and AMP5300R LEF Class A schematic wanted
  150. need schematic VR-209
  151. Carver receiver part I.D.
  152. power amp for active high pass section
  153. Advice wanted on using old relays in DC protection circuits
  154. Soft start question
  155. Copper ring as a shield of the main power cables???
  156. Your opinion about this schematics?
  157. Magnatec's new line - ALFET
  158. need schematic
  159. Amplifer 1 channel dead .Please help
  160. Re-start long idlle Parasound HCA-220ii
  161. Leak Delta 70 - Attempt DIY, Overhaul or buy another amp?
  162. Need Better power amp for active x'over.
  163. Replacement Denon 2sk184c
  164. Replacement transistors for Leach Superamp. Help needed!
  165. Replacement transistors in Leach Superamp. Help needed!
  166. protection/limmit with ldr
  167. Pioneer SA-1050
  168. C Audio RA3001.....I could do with some help!!
  169. New idea for low dissipation Class A amplifier.
  170. It's cheap, it's N, it's dirty, it's.... The CIRCLOMOS!!!
  171. marantz sc 7 service manual
  172. Help with a foolish question- technics se-m100
  173. Help with these? DC300A schematic anyone? Parts
  174. Mounting a small signal diode on heatsink - need suggestion
  175. P14nf12FP amplifier schematic requested
  176. Creek 5350MK2 (5350-II 5350 Mark 2 5350-MK2) - circuit descr. arround Q12a wanted
  177. Why do YOU DIY? Answer for my college research paper.
  178. VU meters
  179. Transformer for 80's Yamaha a-320
  180. Power Amplifier - Pre Amplifier Unity gain - Voltage gain - where as royal way ?
  181. Technics SU-Z400 problem
  182. Problem with isolated and lifted grounds
  183. Attenuation
  184. Studio Series Pre-Amp
  185. Line preamp acting as a tuner – how is it possibile ?
  186. My implementation of the Cordell Distortion Analyser
  187. Crown DC300a Repair Questions
  188. Possible fake Toshiba/Sanken transistors?
  189. Reverse of the old Loudness Control
  190. Triangle TE 60 Amplifier mods
  191. Recommendation Please-100W Wide-Bandwidth Amp
  192. 2SA1210 Transistor info
  193. help with translating from chinese
  194. Transistors for 80's vintage amps
  195. Amplifier Topology
  196. Pioneer A-300X, strange VAS
  197. Crown XLS 602 Bridge switch mod
  198. Try Again- Need help on an HK330B
  199. Trying to build a small battery powered amp...
  200. Anyone have made those diy discretes op-amps ?
  201. Opamp circuit to boost a small range of audio frequency
  202. Diagnosing a power amp
  203. Topology Federmann, HQQF-55 ...
  204. Amplifier Stand - Ikea Modded
  205. some help with a 2 channel project.
  206. Realistic MPA-100 Model#32-2023
  207. THD and IM - a new approach to the perception of distortion
  208. Watt Sucking Fireball Series
  209. How much headroom is needed
  210. FM Acoustics FM 1000 Ultra-High Power Amplifier, the absolute State of the Art?
  211. Zero feedback push-pull buffer : piezo driver idea
  212. diagnosing remote control for Unison Unico
  213. Slightly evolved P3A simulation
  214. TO-3 BJT's
  215. Marantz PM66SE - fuse blown
  216. Please Help to undustand this
  217. Rotel RB 850 and Marantz 5002 both burnt out, please help!
  218. 2SK56/2SJ176 Mosfet wiring needed to avoid oscillation
  219. Phono Stage for Arcam Preamp
  220. 2sk135/2sj50 amp schematic?
  221. Krell Chassis, where?
  222. Power measurements
  223. Best Audio Relays
  224. Marantz PM44SE - Distortion from input selector
  225. leach troubleshooting
  226. Source follower thermal cycling?
  227. Pre/Power Amp Confusions/Problems with Yamaha Bass Cabinet
  228. NAD 304. Single folded VAS?
  229. Question about Class-A Amplifier.
  230. j352 - k2221 MOSFET PAIRS
  231. Single rail precision full wave rectifier - full gnd->rail DC swing possible?
  232. Alchemist Forseti ADP20 schematics
  233. SOIC to DIP adaptors
  234. Discrete preamp - seeking opinion and advice
  235. No global Feedback Amp - Opinions
  236. Current Source video from Linear Tech
  237. Question About Transistor Matching
  238. Potentiometer Overview - Alps, Penny+Giles, TKD and Vishay and more, what's your fav?
  239. Use Tube Pre amp or not ?
  240. Parasound HCA-1500A - I need some help (noob warning)
  241. stability of my preamp
  242. An7512
  243. A trashed currentfeedback amp from 2003 with CFP output....
  244. BF245 help please
  245. Mission Cyrus III
  246. Qsc amps with "flying power" supply?
  247. Creek phono amp card
  248. J Fet Buffer problem - help !
  249. Can i convert voltage from 110v to 220v in these units?
  250. Potentiometer like Alps for complete disassembly wanted

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