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  1. fuse blow
  2. C-Audio RA3000 Blowing fuses
  3. a new low noise, HV Op Amp !
  4. Electrohome C-400
  5. Decoupling for battery based opamp circuits
  6. about schemes H/K citation 24 and Braun Atelier PA 4 (/ 2)
  7. Simple Feed Forward for Power Amp
  8. Emotive mini-X a-100 vs Dayton Audio APA150
  9. Newbie recap project seeks advice..
  10. Adcom GFA-5800 amplifier cooling fans
  11. Hafler 9505 switch needed
  12. Amplificador SUBZERO
  13. Son of Ampzilla rebuilt
  14. upgrading tivoli model one
  15. BIG transistors
  16. Another 80's british amp thread
  17. Yamaha M50 fixing or rebuild
  18. 250-400watt audio amplifier
  19. Parasound A31
  20. Question reg. Sansui Au-D5 mod
  21. Simple Universal Speaker Delay Using A Triac
  22. yamaha emx640 darlington amp repair
  23. The best Circuit of MJ11032,MJ11033 searching!
  24. Pioneer VSX-D557 Overload problem
  25. Soundstandard ES200 schematics anyone ??
  26. Playmaster Series 200 Circuit
  27. DC offset adj in JE990
  28. Korting Transmare A500 - vintage German amp, with issues!
  29. Tekko draws something from his head
  30. Vintage Toshiba 330 power amp problem, possible repair?
  31. Complementary Power MOSFETs
  32. Old class A design with 2SK146 dual JFET
  33. Balanced NoGNFB With Cross-Linked Input Stage
  34. MC2505 problem
  35. Bridging two 300W in 8 ohm amplifier to drive 1200W in 8 ohm
  36. Can a very simple class A amp produce great sound?
  37. you gotta be kidding !
  38. How to find the transfer function of this volume control?
  39. NAD C370 - red light
  40. Marantz SR1040 no output
  41. Mosfet question ( help needed )
  42. Trouble with Denon PMA-520 bias adjustment
  43. What is the importance of IQ in a common emitter stage?
  44. what is the role of the 68pf and 2200pf cap in Hiraga Super class A 30W
  45. Zero FeedBack Amp
  46. Motorola Solid State
  47. Is it worth modding a Marantz PM66SE
  48. Cyrus 3 2nd stage fault.. HELP!
  49. Carver CM-1090 pre/pro help?
  50. Krell KSA 50 clone power supply.
  51. Pioneer receiver mods
  52. Are ground planes in audio pcbs legit?
  53. Radio
  54. Suggestions for output pairs
  55. First amp I ever built - An excellent simple class A amp for beginners
  56. Does anyone know.......
  57. bow technology is still live?
  58. Esoteric Asr schematic
  59. I need help getting started with an Onkyo M-501
  60. High Power, High Fidelity Lateral MOSFET Power Amplifier
  61. Cheaper way to test power supply stability?
  62. Battery Type for Portable Speakers
  63. high rail voltage chip amps?
  64. class A output stage without feedback for a DAC?
  65. Need help hooking up Ashly P70-400
  66. Surprising polycarbonate caps
  67. Cordell OF THE Amplifier
  68. help changing the crossover setting of my class A/B subwoofer plate amp
  69. catfet amplifier
  70. Did one sell Krell amp after building LM4702?
  71. is current in speaker load to be anyway closer to psu current ratings?
  72. Krell KRC-2 service-manual?
  73. Sound project Module
  74. Rega Brio-R design
  75. Scratchy sound coming from speaker
  76. Dx Zim (Zimmer) SMPS will be developed to release
  77. Grounding scheme and loop breaker, need advice..
  78. Sony TA-FE230 Left Channel Weak
  79. I need pcb for this scheme
  80. How to repair and diagnose amp problem?
  81. WAV File Reproduction Sound Project
  82. the Inverting stage
  83. What about car amps?
  84. Audiolab 8000p stopped working.
  85. Ampeg svt 3 pro Power Amp
  86. McIntosh amp smoking
  87. 2 x 15W rms Audio Amp for small speakers
  88. Mickey Mouse PA Amplifiers and Mixers (two brands MM + PAiCE) - Schematics wanted
  89. channel sound loss scott 350R
  90. Need information for MM AP360 Amplifier
  91. Help me please with NAD S300
  92. Arcam AVR-100
  93. Sansui AU-217 issues
  94. Marantz PM44SE power/relay? issues
  95. Rotel RC-1070 Preamp PSU Repair
  96. home wiring is old knob and tube-no ground plug
  97. Should I let unused amps sit or power them up and use them on occasion.
  98. i need LUXMAN L-570 service manual
  99. Luxman 115 preamped into Concept 16.5?
  100. NAD T752 Repair Advice
  101. Goldmund schematics
  102. The Spanish Trio 5700 story
  103. Newbie trying to learn about my GFA-535 internals
  104. Help: A question regarding PCB to PTP?
  105. Converting single-ended signal to balanced causes background noises
  106. LME49830 question
  107. It helps to select best class power amplifier (AB- 40-50 watts)
  108. Transformer for Nytech CA252 Amplifier
  109. Dynaco st120
  110. How good / bad is this amp made?
  111. Efficient Subwoofer Amplifier
  112. Need Help With BUZ901/906 MOSFET Amplifier
  113. Current conveyor
  114. Question on Transistor amplification
  115. Output subs for 2sa1301 & 2sc3280
  116. Technics SA-R 410
  117. Another "ancient" amp
  118. Burnt out transistors - replace with same or something better? Rotel RB-991
  119. Help with Adcom GFA555-II
  120. Sansui ba-5000 Large Cap Removal Help Needed
  121. help to select and correct 400w TDA2030A OR 200WTDA2030
  122. Cambridge Audio A500 & P500
  123. softstart recommendation for 2kva R-core and 1,00,000uf per rail x 2 caps
  124. Alternative buffer topologies
  125. 400 Watt in 8ohms/ 800 watt in 4 Ohms
  126. Until I can afford a digital unit Old Technics??
  127. Yamaha AX 500u schematic, integrated amp
  128. Power rating for short circuit protection in linear voltage regulator
  129. Leach Amp Tests (weird noise)
  130. Amplifier with a sound. How to build for second harmonic.
  131. TCAAS
  132. Pre amp recommendation
  133. what is cy7c6801a pc 645041 and what does it do?
  134. Raising bias on Marantz SR4200 AV Receiver
  135. Will this schematic work ? (2SK2221/2SJ352 only)
  136. Legacy Whisper vs Klipsh Cornwall loading Mark Levinson ML-2
  137. what happens if transistors are not matched? especially output stage..
  138. SOME CLASS H, AB ,PROTECT POWER AMPS
  139. Please help me understand the voltage regulator with external bypass BJT?
  140. Lead size of TO-3 package and where to get insulated jumper wires?
  141. Cross reference 2SD234
  142. about maintenance of amplifiers
  143. Help with this preamp
  144. Input line 120hz on speaker output in class A?
  145. Need help
  146. How to make LME49810 amp 2 ohm stable?
  147. Make Hifi with 3 Triple Sziklai transistors in Simple Class A
  148. 3000w power amp sadaru
  149. Input capacitor 2.2uf Polystyrene or Mundorf Silver/oil?
  150. Negative side Mosfet heating up with mild hissing
  151. Should a 250VA toriodal be blowing a 1A fuse?
  152. The questions about Hi-fi audio for home use.
  153. Denon Output Transistors.
  154. Sansui 9090 help
  155. Diamonds and Pearls
  156. Seeking DC Enlightenment
  157. FETZILLA - The Builders Place
  158. N-Channel JFET sub
  159. Simple 85W amplifier
  160. NAD T753 receiver: No sound
  161. Power Supply and Other Re-capping
  162. Power Supply and Other Re-capping
  163. 100watt mono amp find???
  164. help! noob recapping an amp... really stuck.
  165. Powerbass atm-440.2
  166. uPC1237 too slow
  167. What type of capacitors are these?
  168. +/- 36 Volt Voltageamp with TMC error correction
  169. Sound of Op Amps...
  170. THRESHOLD S-300 UPGRADE
  171. Alternative method load for power testing amps?
  172. THRESHOLD S-300 UPGRADE
  173. alternativ symmetric amp
  174. Has anyone ever had experience with MUSE opamps?
  175. Baking a pcb for removing moisture
  176. Nad 3020e lost some of its volume , distortion
  177. Hafler P3000
  178. Krell KSA-150 Power board Reassamble HELP Please
  179. accurate Output Stage
  180. N-Channel JFET
  181. Musical Fidelity A100 resistors
  182. Help me from JFET
  183. Parts for NAK CA5
  184. Help for Rega biasing value
  185. Replacement transistors, NAIM NAP90
  186. DC Detection Question
  187. Leach driven by DRV134
  188. TO-3 Removal
  189. HOW CAN I CREATE 10% THD ??
  190. Another ESP P3A PCB design thread
  191. joule thief (draw more power from a power supply?)
  192. Found: SAE Series Two Power Switch
  193. Restart search for PS Audio Elite schematic.
  194. NAD 114 switch-on.
  195. Cadsoft eagle package LSK389
  196. gallien-krueger MB150s 120v to 230v conversion?
  197. New modern amp or classic second hand?
  198. Capicator Whine? PPI PC2350
  199. How much big a heatsink has to be?
  200. NAD C326BEE upgrades
  201. Cyrus 2 - removing cover
  202. Idling setting for Yamaha MX-2000 ?
  203. Philips 391 Intergrated Amplifier guts?
  204. 500w mosfet power amp sadaru
  205. Adjusting DC offset issues
  206. New Lineup IDEA - Power Follower/Output stage
  207. PS Audio 100c thump
  208. Just scored a Sanyo DC-8500K, Can its preamp board drive a Matsushita EPC-451C?
  209. Krell KSA 250 - The Mother Clone !!!
  210. AV400 Bias adjust and Transistor burning accidents
  211. how to match the Transistors like toshiba 5200 1943
  212. Power amp right channel running hot.
  213. Class G plate amp problem
  214. ARCAM D290 DEAD - PLEASE HELP
  215. I am having fun..the one is saying bad things is a friend
  216. Increasing the output power of a car amplifier.
  217. PCB for TDA7295
  218. VSP Labs TransMOS
  219. CS800X output amp cicuitry
  220. Heatsink gradients and Vbe
  221. Are these ok for usage in a vas / current source ?
  222. help with Luxman l-200
  223. why do old amps sound is liked by many serious audiophiles even though...
  224. Best suited power mosfets for amplifiers
  225. why do old amps has sleeve on the resistors pins...
  226. A872e Replacement
  227. See any issues with this class A current clip detect circuit?
  228. Effects of emitter resistors in a hifi amp?
  229. Sansui 9090 bias
  230. Replacement For MPSU10/60
  231. Attempting to restore a Pioneer 202 spring reverb
  232. Quad 405 clone parts
  233. Parts quality does matter, yes, but..
  234. Sources for TO220 heatsinks?
  235. line level stereo volume control using one pot?
  236. REPLACE TIP36 + 2N3055 IN TDA2030A
  237. Amp is making loud "boom pop" noises every second or so..
  238. R24 incomplete
  239. Krell KSA-250 low frequency oscillation
  240. Newly built ESP P03 (not 3A) - rail to rail oscillation - suggestions?
  241. Musical Fidelity 3A-X preamplifier
  242. Denon DR-M07 Cassette Deck
  243. PCB manufacturer EU - thick copper ...
  244. Liquid discharge from capacitors?
  245. Adcom GFA-565 with very high DC offset
  246. Adcom GFA-2535 Bias Adjustment
  247. Balance control for MF pre-amp
  248. DAC what for ?
  249. An active Current Dump amplifier design idea.
  250. Mechanical Transformer Hum

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