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  1. Please help Yamaha rx-1030 problem
  2. Help with a factory reset
  3. Crest CA-18; one channel died peacefully
  4. crackling noise Pioneer SA-8500
  5. P3A amp shutdown 'plop'
  6. Chinese made Kit solid state Amplifiers on Ebay
  7. Bass blocking cap at amp input
  8. Does the Crown K2 inject delay? How to test?
  9. Parasound HCA-1000a Refresh
  10. Need some help with an active system
  11. Power at 8ohm, 4 and 2....
  12. Pioneer sc-lx71 blowing fuses
  13. Volume potentiometer replacement,pins.
  14. Interesting bit on capacitors....
  15. Phase Linear 700b refurb and full complementary conversion
  16. Yamaha AX-630
  17. What kind of capacitors inside this ?
  18. Wharfedale SW150 Active Subwoofer help
  19. Single Supply Amp
  20. Dynaco Stereo 400 - suggested TLC?
  21. In your class AB designs generally where is your second pole?
  22. Need spice model for 2SA1163
  23. Amplifier
  24. What is responsible for "control" of loudspeakers?
  25. Harmon Kardon-870 no lights
  26. Dynaco ST-100? I would much appreciate any info on this model.
  27. reparing old amplifier tectronic sa 535
  28. Best PJFET for CCS?
  29. keep smokin transistor!!
  30. Audio Innovations Alto mk 1
  31. Add more inputs to vintage preamp?
  32. turn on pop noisy standby
  33. Mosfet hybrid offset issue
  34. Need help ns450 200 watts amp bias adjust
  35. Schematic for 2SK351 - Quasi?
  36. About op-amps use.
  37. Module amp build help
  38. Op-amp decoupling - best practice?
  39. Rotel RB-980BX schematic
  40. Crown Pro amp ground up refurbish?
  41. Rod Elliot P68 Output DC offset.
  42. Discrete Tandy/Realistic transistor amp: Thermistor?
  43. Miniature bulbs replacement rule?
  44. CRELL and Konzert Schematics
  45. SIT amp simmulation, 2SK79+2SK82 push-pull
  46. Any suggestions on who to upgrade HCA-3500
  47. Technics ampifiers put an end to it's disgusting reviews yes or no for it to be!
  48. jbl vrx 932LAP/918SP schematics needed
  49. Qsc 850 help
  50. TIP3055/TIP2955 ST semi wierd(please help)
  51. Assembling an HDMI to 5.1/7.1 system
  52. Would amp designers (e.g. Pass) replace old caps?
  53. calculating high-pass filter for these components
  54. Uneven slew rates, does it matter?
  55. Luxman L-85V
  56. Troubleshooting stereo amplifier
  57. Akai AA-V1500 Amplifier Repair Help
  58. L20 V9.2
  59. Biasing MJ2955 and 2N3055
  60. Adcom 565 mono block with strange issue
  61. Luxman L-510 capacitors?
  62. Is this another DC offset question?
  63. Amplifier Akai am-u33, powers on, but no sound
  64. transistor heat excess and upgrade components
  65. Building a Quad 306 Clone
  66. Basic Amplier Toubleshooting
  67. Luxman R-113 relay(?) issue
  68. Need spice model for 2SA1618 and 2SC4207
  69. Bogus amplifier
  70. Sugden A21a...hummy
  71. Speaker protection relay issue
  72. Bridging w/ Input Transformers?
  73. Why not use emitter coupled matched pairs instead of emitter resistors?
  74. Technics SU-2400
  75. BGW 750C Recap, help a newbie out?
  76. BPA200 LM4780 Board (Unfinished) Design
  77. Oliver bias set point for class AB power amps
  78. Magnetic field of brushless DC fan
  79. Buy or build?
  80. LeachAmp power up
  81. k10 power amplifier
  82. Protection relays
  83. Any other method of killing bandwidth of an amp besides a large compensation cap?
  84. New to the forums
  85. How close should the +/- rails mirror each other
  86. Uso de diodos MUR3060
  87. Help with my new "old" SS anp.
  88. Sansui G6000 clone BY Dx .... not mine, just something i have prepared to share
  89. CYRUS 6 Amplifier please help
  90. Back to back diodes at inputs of opamps
  91. Amplifier speakers relay: how to pop open the cap on them?
  92. Grounding (Power Vs Signal)
  93. Pioneer A400 Volume Pot Replacement
  94. LME49811 with KSA1381 as headphone amplifier 600ohm imp
  95. Counterpoint SA 20 Amp Blowing Main fuse
  96. Celestion 6000 system...
  97. HK Citation 16 (Not the A model)
  98. Using a line preamp to drive headphone
  99. Nad amplifier c 352 with pop sound from speakers?
  100. Dynaco - ST 400 PC-29 mods/upgrades
  101. Transformer Upgrade
  102. Thermaltrak Amplifier Project (assembling soon!)
  103. Tivoli Model One Problem
  104. AU-999 with new Caps still "pops"
  105. I would like a few ideas..
  106. Does change of high speed power transistor/rectifier increase the dynamic
  107. MX50SE LJM 2015
  108. offset won't zero
  109. Amp working but bulb tester glows
  110. KEC Transistor Data Sheets
  111. Why no fully differential circuits?
  112. Advice for Amplifier Bias
  113. Another variation to the MCA amplifier
  114. Need help powering up diy amp for the first time
  115. Replacement for 2SC2362
  116. Data sheet Sanyo STK0231
  117. 2 channel amp recommendations
  118. Just won a AB International 600LX, what to check first?
  119. Crown K2 repair project
  120. Pkn Xd6000 amp for B&C 18SW115 drives
  121. quad 405 amplifier and clone boards from China
  122. Lafayette Radio Int. Amplifier
  123. Interview at Hi-fi Answers
  124. Quad 34 preamp all lights on problem
  125. First discrete BJT Amp
  126. Input Coupling Capacitor
  127. Weird idea for a Quad 303 housing
  128. Looking for a good value pre-amp
  129. Example of CFP output stage with dual rails?
  130. AudioResearch D240 mkI or mkII
  131. Compensate Bias for DC offset?
  132. best Value in used high power amps?
  133. Bias and balance adjustment for Hafler DH-120
  134. Rotel RA 500
  135. Yamaha DSP-3070 vs Marantz PM6005/Simlar
  136. Recapping a Quad 303
  137. Amplifier Gain
  138. How much better is steel casework vs aluminium (aluminium) for shielding?
  139. NAD C370 dead?
  140. Spectral DMC-10 Repair Help
  141. Adcom GFA-5400 / Help please...
  142. Musical Fidelity B1 Overhaul
  143. Adcom 535 help.
  144. nad c370 loses right channel
  145. Leach based amplifier design
  146. HERE is the Entire Spectral DMC-6 Owners Manual
  147. TIP35C/36C quick help needed
  148. Transistors Substitute
  149. Can anyone identify the source of the problem?
  150. Dayton Amplifier
  151. the users of Kenwood KA2200 sigma drive indicator pls help
  152. what do you think of this design?
  153. What are these capacitors?
  154. SAE 310 Transistor replacement info
  155. QUAD 99 power amp
  156. Help troubleshooting yamaha ms400 please
  157. How to set bias on a vintage amp with all new trannies ?
  158. DC Servo DIY Kit for DCCancellation
  159. My new amp
  160. Opinion about PCB
  161. Threshold T400 repair, need help
  162. Luxman M-4000 problems
  163. What amp for this box ?
  164. Old grundig offset level
  165. Where to start when green
  166. Non Super Tramp Trace Elliot (TDA1514A)
  167. Buttkicker bka-130-c
  168. Low "Ft" TO-3 transistors vs high "Ft" ?
  169. Denon avr 2802 no sound on speakers but "works"
  170. Akai AMU110
  171. Capacitor value in Zobel Network
  172. Mega Simple Class A Amplifier
  173. Strategy to track down a short
  174. Tiger in your amp
  175. Amp On/Off Speaker Noise
  176. Marantz sc-8 intermittent greatness
  177. VAS cascode to direct drive high power MOSFET OPS
  178. AnalogMetric kits??
  179. Technics SU-VX800 Given to me
  180. ALchemist adp20a power amp. Low output
  181. Preamplifier who is it?
  182. Amp stable for 2ohm speakers.
  183. Need replacements for transistors; 2SC2634
  184. MD7001 and MD7021
  185. Altec Lansing 621
  186. Why does this DAC use an NJM4558 for the Low Pass Filter ?
  187. Sony TA-F700ES keeps blowing fuse
  188. cm labs 912p
  189. My last amplifier
  190. How many transistors inside 2SA1302/2SC3281 ?
  191. Safe to downgrade from TO-264 to TO-3P
  192. Old Solid State Power Amp.schematics class AB
  193. 2SC3858/2SA1494 based amplifier?
  194. Hum problem
  195. Power amplifier inspired by Gryphon Tabu (NAD S300)
  196. Kicker 354xi resistor color code
  197. ok, blew-up my speakers :(
  198. Loud hum problem
  199. Quad 520F transistor change?
  200. suggestions for oscillation on neg half of output
  201. What is this discreate component?
  202. Klipsch Promedia 2.1 repair help
  203. Please help the dummy. Adcom gfa 5503
  204. Yamaha RX-797 - no power to device
  205. Simple no GNFB LATFET amp
  206. yamaha rx v-797
  207. NAD C 320 (non-BEE): Volume dial not moving
  208. 2sc2922/2sa1216 help me to find out fake or not
  209. I have this solid state RadioShack PA amp. Can I make a cool 2.1 system with it?
  210. fitting TO-264 inside TO-3 (crown amp)
  211. Marantz 510M - How to remove Lamp Board??
  212. Quiescent current Nytech CA 252
  213. buzzing sound from amp
  214. McIntosh MC250 Repair/Upgrade
  215. 2sc5200/2sa1943 amp module upgrade
  216. Fairchild FDP5N50NZ SPICE Model
  217. VU meter for Bias
  218. Picking caps and paralleling low esr with high esr caps
  219. Locating point of broken wire in cable
  220. The best sounding amp i ever heard
  221. Noobie Alert! Help neede with Diy Monoblock!
  222. How is the build quality of this amplifier?
  223. Quad 303 Power Amplifier - Left Channel Distorted
  224. Fairchild FQP3N25 and FQP3P20 for VAS cascode
  225. Cap upgrade for Borbely DC100
  226. Ground Loop Breaker Location
  227. L10 amplifier need VI limiter
  228. Newbie
  229. Stunning Amplifier Development!! Feedforwardback & Feedbackforward
  230. New to me McIntosh MC2205
  231. Harman Kardon Citation 16 Rebuild
  232. Rotel RB-971 in RB-981
  233. Laconti triple emitter follower
  234. Building a 3 Channel Amp
  235. Krell KSA 300s Integrated circuit
  236. 2SB755/2SD845
  237. Marantz PM-66 SE K.I. modification
  238. Onix OA-21E Phono Issue
  239. Volume control need help with this idea
  240. ssm2220 and ssm2210
  241. Rotel 820BX4 driver transistors hotter on one channel
  242. Tried fixing my Creek 4240 amp but...
  243. Devices with high Early Voltage
  244. Diagnosing loud popping from speakers connected to an SAE C3A amplifier
  245. Tonight I learned a hard lesson on decap
  246. NFB circuit not typical?
  247. YAQIN MC10L power amp
  248. How do you calculate impedance of a current source?
  249. Looking for Schematic for PreSonus Studio Live 16.4.2
  250. Recommend anyone in UK who can service/mod my Adcom GFA-535??

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