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  1. Harmon/Kardon AVR 35 - Worth Repairing?
  2. Help: plate amp blown - need help to fix
  3. output buffer for a hybrid amplifier
  4. Dynamix DPA1000
  5. Custom PCB Service Suggestion
  6. Echocord Din Question
  7. Adcom GFA 535 Clicking on Power Up and Down
  8. BD139/140 driver
  9. Need help understanding differential input stage
  10. Cambridge Audio ATAC 3
  11. An Introduction and Laney Bass Amp Question
  12. Monlithic transistor IC for input stage design?
  13. Symasym - the next generation (supersym)
  14. Do you measure component temperatures?
  15. Yamaha RX-797 problem...opinions?
  16. 2108 / can I ask this here?
  17. Watt meters
  18. Old Sansui gear worth repairing?
  19. I think I understand CCSes now...time for application
  20. Full Cascode Amp or Not?
  21. Amplifier
  22. Nikko Alpha Ii Schematic
  23. TGM2 amplifier
  24. Dynacord eminent 100
  25. HELP: repair my ML 38s
  26. Paper clips as TO-220 heat sinks
  27. Calibrating microphones and speakers
  28. Bypassing electrolytics - GOOD or EVIL ?
  29. Powermate 600
  30. amp reverse..
  31. HELP Trio L07M11
  32. Opamp for low-voltage supplies
  33. Preventing relay thumps
  34. odyssey stratos
  35. Converting a B&K Receiver to a Power Amp
  36. need help with some old ss amps
  37. Hafler Five Hundred problem
  38. OPA604-again - but the offset is -18v!!!!
  39. Quad 405 modules - output voltage varies!
  40. Looking for Feedback on this No Feedback Amp.
  41. First DIY solid state amp
  42. Another power amp - Adastra
  43. Best Mos Fet PA3000 amp?
  44. Sansui AU7900 Integradted Amplifier
  45. Help with Yamaha P2500 power amp
  46. eine fantastische Verstärker/Endstufe
  47. Service manuals
  48. Rectifying Diodes 4007s
  49. Soft start for class AB
  50. My Sumo appears dead....
  51. I had an idea...maybe a brainstorm result..some neuroniuns re-started to work
  52. Vintage-style Volume Meter - Where to buy ?
  53. Seeking for advice: routing/physical layout
  54. DIY Amplifier recommendations
  55. Rotel Ra-931
  56. Higher output of TL082
  57. Memorable Solid State experiences
  58. High current TO220 diodes
  59. Amp Design/what goes into building a great amp
  60. DIY Sub amp recommendations
  61. RCA 1972 Basic amplifier MODS
  62. Who can explain this preamp circuit to me?
  63. Substitute 2N3055/2955
  64. Amp sim output load capacitance, how much?
  65. Nikko Beta Ii
  66. A little help choosing an amp
  67. Return of my differential VAS
  68. Heatsink for an I-PAK / TO-251 device ?
  69. CHOKE Loaded MOSFET, easy to build
  70. DS446 Diode ?
  71. SUMO Polaris Class A/B Stereo Power AMP (New to the Board)
  72. phonic service manual?
  73. Athens Audiophile Club
  74. Njl3281d
  75. Replacements for 2sa747a transistors
  76. Sherwood was a passion into my past..when i was young
  77. Sansui BA-5000 Oscillation
  78. NAD 3130, more to love?
  79. The greatist - AD745 psrr Versus AD797
  80. JVC A-S3 service manual
  81. an old HK6200 worth repairing?
  82. GKlein - K12A facts & figures and ideas in Class A
  83. ESP 60 watts
  84. Variable operating biass output ?
  85. Gibson GSS-50 Reverb Tank question
  86. Nakamichi CA-5 hum/buzz and does anyone have the schematics/service manual?
  87. NAD 3020i repair help?
  88. +/- rail electrolytic caps - need to be identical
  89. Setting power amp so speakers don't blow (help a novice)
  90. How do you match your LTP transistors?
  91. Parasound 1200 II left channel static and....
  92. AB Amp keep blowing fuse
  93. OPA2227 chips
  94. Audio Innovations Alto
  95. Dx amplifier, builder's thread
  96. Schematic for Belles 150A
  97. Bypass caps values advice
  98. Current source conundrum
  99. Anybody used a FPAA (field programmable analog array)?
  100. 2SC5200/2SA1943 Toshiba or Fairchild
  101. new ampli with IRF240
  102. Internal Image of qsc
  103. Unbalance Collector Emitter voltage both pnp and npn
  104. Looking for Tapco CP500 Schematics
  105. Peavey Mark III Bass 400 B/G? PA Problem
  106. Toshiba trannies from ebay
  107. 3T HeadPh Amp. JFET-BJT-MOSFET
  108. Replace old ceramic caps advice
  109. want to make a attenuator
  110. Fore MJL21193/94 driver curcuit needed
  111. NAD 7020i - pre-amp power supply issue
  112. suitable bypass cap
  113. 2sa1016/2sc2362
  114. Chinese "knock off" kits from ebay
  115. Switching current source for Class A?
  116. Nakamichi SR-4 not powering up
  117. Open loop gain, phase margin etc
  118. Need Help!!! Switching Op-amps In Preamp Gas Thoebe
  119. Yamaha P4500
  120. Akai AM-U7
  121. IRFP240/9240 amp Schematics
  122. 400W Power Amplifier
  123. Starting Balanced CFP!
  124. Attenuator
  125. Do you know the reason why so big voltage to the input circuit?
  126. Do you know what this capacitor is doing there?
  127. What is the capacitor from base to collector for?
  128. MM Electronics Paice amps???
  129. PCB for Bernd Ludwig's modified Quad 405 circuit
  130. 2sa1494 replacements ?
  131. Need replacement for devices GET 4871 and SCR 2N4442 in Vintage PA Amp
  132. Rotel RB1080 - Injured, needs consulting specialist
  133. Commercially available current dumping amps?
  134. NAD 3020 clone
  135. york ville amplifier
  136. Exposure IV blown channel
  137. Volume level mismatch using MOSFET output device?
  138. Dukane line in/speaker out help
  139. Introduction and Help...
  140. Moding this phono preamp ?
  141. roland jazz chorus-55 amp repair
  142. transformer question
  143. darlington transistor LTspice model ?
  144. Crest ST2000 scheme for Power Supply
  145. Professor smith needs help
  146. hafler dh200 blew speaker?
  147. Selector Switch Pop - Newbie Question
  148. Transistor as a Switch, is this correct?
  149. JFET sorting by Ron?
  150. Hiraga
  151. Convert Or Add XLR Inputs To Power Amp?
  152. Left channel broken on NAD reciver...
  153. CELLO Duet 350 supply conversion
  154. The "Volksamp" - NAD 3020
  155. Luxman C 02
  156. "stop" line on sony receiver
  157. Dukane 1a803
  158. Musical Fidelity X-A200 upgrade quandry
  159. PS Audio Linear Control Center and Phono III
  160. Gallien Krueger 250ML overdrive.. (J406/J412???)
  161. What kind of solder do you guys like to use?
  162. noob question about B-1000 sansui
  163. LT-spice VS Eagle... CAD cooperation...
  164. Opamp compatibility
  165. Pioneer A-445 help needed
  166. mini-mosfet
  167. need scmh. for europower pmh660m
  168. interesting amplifier schematic
  169. Cyrus III+PSX-R problem. Anyone knows?
  170. Luxman L100 vintage sound
  171. substitute for IC1003 in ciclotron schematics
  172. Stage output, driver oscillating
  173. Help needed with Musical Fidelity P270 II electrical problem
  174. Pioneer M5
  175. Nad 304 Protection Mode
  176. Amplifier circuit questions~
  177. Pioneer SX-838 problem
  178. Problem with Exposure 2010s
  179. Can someone tell me how this works?
  180. Crackling from a solid state circuit
  181. HELP! Adcom GFA-565 turn-on BUMP
  182. Plinius power amp
  183. DC offset/Blocking Caps for my preamp
  184. ONIX OA21 and SOAP Connection
  185. HPPA amplifier (Bert Molenkamp)
  186. newbie question - replacing caps
  187. small signal transistor
  188. Yamaha M-60 bias issue
  189. Phase-splitter using ONLY NPN transistors - any ideas?
  190. Adcom GF 555 Mk II , oppinions ?
  191. Crown M600 ...........
  192. Linn LK-1
  193. What do you look for in the distortion spectrum?
  194. A Question Regarding Peavey's CS 800 Power Transformer
  195. Self balancing multiple MOSFET output transistors.
  196. Adcom GFA-555 MKii blown channel checklist?
  197. NTE transistors-->> Backwards from original case layout!! What the heck!
  198. Muting Relay ..... buzzing
  199. Loud pop on Squelch
  200. Current-feedback amp, 150 a 200 watt.
  201. Is there a cheap way to reproduce 400 W @ 8-ohms?
  202. MIMPS? crown Transistor matching
  203. Audiolab 8000s Fault
  204. Kaneta method's all FET power amplifier
  205. amp guts
  206. Hafler TA-1100 Thread
  207. Any Wiki or FAQ here on how Power Amps work?
  208. transformer volume control (TVC)
  209. Temperature in transistors
  210. Audiolab 8000a fuse
  211. Power transformers versus amplifier output power..what is your option?
  212. How to find the size on a fuse to "Soundstandard MA3600" ?
  213. replacement for Bidirectional Switch MBS4991 and Triac 2N6346A
  214. HiFI OP-AMPs, BJTs, and FETs how do I choose them?
  215. Finding pre-amp output in mini system
  216. Amplifier is a piece of wire
  217. Need help finding replacement parts
  218. AB outputstage
  219. new amp total mosfet
  220. rotel ra 820
  221. Addressing John Curl's concerns on low noise designs
  222. adcom gfa 565 looking for references
  223. Bogen CT100 speaker hookup
  224. Slight balance drift ... Help please
  225. Vincent SP-331 Circuit diagram
  226. Repair Rotel RX550?
  227. Voltage Drop Based On The Load
  228. Single-ended mosfet-tube follower
  229. Is there a more modern transistor than a MJE181-171
  230. looking to make a higher end portable 12v amp,sugg.?
  231. 80 s pioneer amp SA540
  232. clearing up confusion about earthing
  233. Need data on mosfet
  234. amplifier protection
  235. Reparing Mcintosh MC7150
  236. Unity Gain op amp circuit?
  237. Need some advice rebuilding/upgrading 2 power amps.
  238. JBL eon15 g2 schematics reqd
  239. ncc 200 questions
  240. A superior VAS clamp and VAS current limit for the Blameless.
  241. which output transistor?
  242. Spectro Acoustics 500 problem
  243. IntregalOverloadOutput on a G R Sloane Amp
  244. Sick Carver M-1.0t amp: bad caps?
  245. crimson ck1010 preamp
  246. Blown PA
  247. Passive preamp and biamp
  248. Negative feedback take off point
  249. Use of diode in projects M-Levision
  250. little copper posts?

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