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  1. Burnt out transistors - replace with same or something better? Rotel RB-991
  2. Help with Adcom GFA555-II
  3. Sansui ba-5000 Large Cap Removal Help Needed
  4. help to select and correct 400w TDA2030A OR 200WTDA2030
  5. Cambridge Audio A500 & P500
  6. softstart recommendation for 2kva R-core and 1,00,000uf per rail x 2 caps
  7. Alternative buffer topologies
  8. 400 Watt in 8ohms/ 800 watt in 4 Ohms
  9. Until I can afford a digital unit Old Technics??
  10. Yamaha AX 500u schematic, integrated amp
  11. Power rating for short circuit protection in linear voltage regulator
  12. Leach Amp Tests (weird noise)
  13. Amplifier with a sound. How to build for second harmonic.
  14. TCAAS
  15. Pre amp recommendation
  16. what is cy7c6801a pc 645041 and what does it do?
  17. Raising bias on Marantz SR4200 AV Receiver
  18. Will this schematic work ? (2SK2221/2SJ352 only)
  19. Legacy Whisper vs Klipsh Cornwall loading Mark Levinson ML-2
  20. what happens if transistors are not matched? especially output stage..
  21. SOME CLASS H, AB ,PROTECT POWER AMPS
  22. Please help me understand the voltage regulator with external bypass BJT?
  23. Lead size of TO-3 package and where to get insulated jumper wires?
  24. Cross reference 2SD234
  25. about maintenance of amplifiers
  26. Help with this preamp
  27. Input line 120hz on speaker output in class A?
  28. Need help
  29. How to make LME49810 amp 2 ohm stable?
  30. Make Hifi with 3 Triple Sziklai transistors in Simple Class A
  31. 3000w power amp sadaru
  32. Input capacitor 2.2uf Polystyrene or Mundorf Silver/oil?
  33. Negative side Mosfet heating up with mild hissing
  34. Should a 250VA toriodal be blowing a 1A fuse?
  35. The questions about Hi-fi audio for home use.
  36. Denon Output Transistors.
  37. Sansui 9090 help
  38. Diamonds and Pearls
  39. Seeking DC Enlightenment
  40. FETZILLA - The Builders Place
  41. N-Channel JFET sub
  42. Simple 85W amplifier
  43. NAD T753 receiver: No sound
  44. Power Supply and Other Re-capping
  45. Power Supply and Other Re-capping
  46. 100watt mono amp find???
  47. help! noob recapping an amp... really stuck.
  48. Powerbass atm-440.2
  49. uPC1237 too slow
  50. What type of capacitors are these?
  51. +/- 36 Volt Voltageamp with TMC error correction
  52. Sound of Op Amps...
  53. THRESHOLD S-300 UPGRADE
  54. Alternative method load for power testing amps?
  55. THRESHOLD S-300 UPGRADE
  56. alternativ symmetric amp
  57. Has anyone ever had experience with MUSE opamps?
  58. Baking a pcb for removing moisture
  59. Nad 3020e lost some of its volume , distortion
  60. Hafler P3000
  61. Krell KSA-150 Power board Reassamble HELP Please
  62. accurate Output Stage
  63. N-Channel JFET
  64. Musical Fidelity A100 resistors
  65. Help me from JFET
  66. Parts for NAK CA5
  67. Help for Rega biasing value
  68. Replacement transistors, NAIM NAP90
  69. DC Detection Question
  70. Leach driven by DRV134
  71. TO-3 Removal
  72. HOW CAN I CREATE 10% THD ??
  73. Another ESP P3A PCB design thread
  74. joule thief (draw more power from a power supply?)
  75. Found: SAE Series Two Power Switch
  76. Restart search for PS Audio Elite schematic.
  77. NAD 114 switch-on.
  78. Cadsoft eagle package LSK389
  79. gallien-krueger MB150s 120v to 230v conversion?
  80. New modern amp or classic second hand?
  81. Capicator Whine? PPI PC2350
  82. How much big a heatsink has to be?
  83. NAD C326BEE upgrades
  84. Cyrus 2 - removing cover
  85. Idling setting for Yamaha MX-2000 ?
  86. Philips 391 Intergrated Amplifier guts?
  87. 500w mosfet power amp sadaru
  88. Adjusting DC offset issues
  89. New Lineup IDEA - Power Follower/Output stage
  90. PS Audio 100c thump
  91. Just scored a Sanyo DC-8500K, Can its preamp board drive a Matsushita EPC-451C?
  92. Krell KSA 250 - The Mother Clone !!!
  93. AV400 Bias adjust and Transistor burning accidents
  94. how to match the Transistors like toshiba 5200 1943
  95. Power amp right channel running hot.
  96. Class G plate amp problem
  97. ARCAM D290 DEAD - PLEASE HELP
  98. I am having fun..the one is saying bad things is a friend
  99. Increasing the output power of a car amplifier.
  100. PCB for TDA7295
  101. VSP Labs TransMOS
  102. CS800X output amp cicuitry
  103. Heatsink gradients and Vbe
  104. Are these ok for usage in a vas / current source ?
  105. help with Luxman l-200
  106. why do old amps sound is liked by many serious audiophiles even though...
  107. Best suited power mosfets for amplifiers
  108. why do old amps has sleeve on the resistors pins...
  109. A872e Replacement
  110. See any issues with this class A current clip detect circuit?
  111. Effects of emitter resistors in a hifi amp?
  112. Sansui 9090 bias
  113. Replacement For MPSU10/60
  114. Attempting to restore a Pioneer 202 spring reverb
  115. Quad 405 clone parts
  116. Parts quality does matter, yes, but..
  117. Sources for TO220 heatsinks?
  118. line level stereo volume control using one pot?
  119. REPLACE TIP36 + 2N3055 IN TDA2030A
  120. Amp is making loud "boom pop" noises every second or so..
  121. R24 incomplete
  122. Krell KSA-250 low frequency oscillation
  123. Newly built ESP P03 (not 3A) - rail to rail oscillation - suggestions?
  124. Musical Fidelity 3A-X preamplifier
  125. Denon DR-M07 Cassette Deck
  126. PCB manufacturer EU - thick copper ...
  127. Liquid discharge from capacitors?
  128. Adcom GFA-565 with very high DC offset
  129. Adcom GFA-2535 Bias Adjustment
  130. Balance control for MF pre-amp
  131. DAC what for ?
  132. An active Current Dump amplifier design idea.
  133. Mechanical Transformer Hum
  134. Va rating reloaded
  135. Threshold s/200 question
  136. thanks for help
  137. dmm hfe
  138. Parasound HCA-800 II - How to Bias?
  139. Rega channel selection broken!!
  140. Amp project to use 2 XFOS I have lying around
  141. Any hifi but simple line level stereo to mono converter?
  142. quad 303 burnt component
  143. Any Stockholm Members
  144. TA-N7B new circuit operation brochure
  145. Best location for amplifier's output inductor?
  146. NAD 3120 parts
  147. Maximum output power/current from a transformer?
  148. Sansui 9090 IC equivalent circuit
  149. Samson Servo 260
  150. Conn Organ Amp Question
  151. doubt about amplifiers and active crossover
  152. PV 1.3K won't drive 2 ohms with DDT on
  153. combining amplifiers help!
  154. High Brightness LED Zener Like Curve
  155. brand capacitors need for recap
  156. Dual CV-441 RC darlingtons modifications
  157. help with adcom 555 amp left channel death
  158. Class i
  159. Schematic or Parasound Zamp ver 1
  160. Emitter resistors, single piece?
  161. Crown Amplifier
  162. Apex HV23
  163. Input coupling capacitor sizing
  164. MTE AUDIO AMP
  165. Another NAD 3020e repair thread
  166. Peavey CS800X Power Transistors
  167. Schematic for sound craft spirit mate 350
  168. audiolab 8000a transformer blown!
  169. TEAC Distinction Series AI-2000 Integrated
  170. Sony amp - loud static on Rch
  171. Audiolab 8000A Class A?
  172. Pioneer SA 9500 mk 1
  173. Clip Light
  174. Prototype power amplifier
  175. Please help me choose my next amplifier build!
  176. Adcom GFA555-II help needed...
  177. Help on restoring amplifier
  178. Good Article on Vintage vs New Hi Fi Equipment
  179. how do I make a push-pull amplifier?
  180. Voltage regulator oscillation at 850khz at high current
  181. Kind of embarasing but how do I use this toroidal transformer?
  182. Little GEM
  183. (Creating) TDA7375 based amp
  184. TDA7375 based amplifier (creation)
  185. Kenwood KM X-1000 service manual
  186. Krell KSA 100 mk2 recap- advice required
  187. Proven class AB designs for ~100 watts of output
  188. ~100khz sinudodial signal superimposed on the output of a common emitter stage
  189. how important is damping factor of 1000
  190. Yamaha P7000s faulty
  191. Can I remove hum from active speakers?
  192. WLX-7 Speaker protection board
  193. SuperFeel 6 - a new configuration
  194. specs vs perception solved
  195. Creek 4330 died
  196. Simple Amp Help
  197. First build
  198. 100-200W AMP suggestion
  199. Suggestions on first build 100-200W
  200. Dx Blame ST together Dx Super A
  201. An ultimate amp protection circuit ?
  202. Didoes vs Zeners for providing a vbe reference?
  203. Question about Hafler DH110 and DH500
  204. AKAI AM-2200 Upgrades
  205. Sony system failure - full investigation thread
  206. Help needed on a new DIY amp project
  207. Practical MOSFET Amp Design/Speculation/Questions:
  208. crown xls 602 need help,no output
  209. Leach amp troubleshooting
  210. HELP!! Denon PMA-655R (source selector)
  211. White Noise and Amplification Wattage (newbie question)
  212. Help needed with Mosfet power amp
  213. SMD redesign or back to through hole?
  214. Help with circuit diagram of amplifier
  215. Power Amp Hum !!
  216. Building a 1987 power amp
  217. Active Bandpass Filter Equalizer (Guitar Pedal)
  218. Apex B500 problems
  219. solid state capacitor question
  220. Looking for Primare A30.1 schematic or servicemanual
  221. 1000w mosfet power amp
  222. Cyrus II r/ch distorcion
  223. HC 2000 power amp
  224. Dead Altec 9440a
  225. Adcom GFA-555II advice needed...
  226. Scratchy pots
  227. PS Audio E2C P/S fuse value?
  228. heat spreader insulation sheet - where to buy?
  229. MYBEST5 Jfet CFP amplifier
  230. Behringher INuke 3000 DSP PreAmp
  231. I think I majorly screwed up - Technics SU-7700
  232. Pre-Amp distortion
  233. PS Audio Elite components??
  234. Transformerless input for 150ohm mics ??
  235. Distorted waveform from PC microphone
  236. How to determine if your transistors are "too hot"
  237. Cyrus One/Two volume pot... linear???
  238. Dx Custom.... the Bass Machine!
  239. early Naim manual speaker cable info
  240. Nakamichi PA-7 bias trimpots...
  241. Need Adcom GFA-555 II Test Point Help...
  242. Moving the Multiplier to the heatsink, or To3, or Collector lead
  243. 360w 8ohms, 550w 4 ohms mosfet
  244. SIMPLE 1KW AB Amplifier
  245. What about the use of amplifiers 2sb737.2sa970.2sa1316? someone tried
  246. can anyone explain this amplifier? Audio Telex 2sa500B
  247. Pilot Console 30 W Solid State Specs?
  248. ♫♪--My little posh Tringlophone--♪♫
  249. capacitor in series protect speakers from getting damaged due to signal clipping
  250. Replacment for IRF064N

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