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  1. MC2505 problem
  2. Bridging two 300W in 8 ohm amplifier to drive 1200W in 8 ohm
  3. Can a very simple class A amp produce great sound?
  4. you gotta be kidding !
  5. How to find the transfer function of this volume control?
  6. NAD C370 - red light
  7. Marantz SR1040 no output
  8. Mosfet question ( help needed )
  9. Trouble with Denon PMA-520 bias adjustment
  10. What is the importance of IQ in a common emitter stage?
  11. what is the role of the 68pf and 2200pf cap in Hiraga Super class A 30W
  12. Zero FeedBack Amp
  13. Motorola Solid State
  14. Is it worth modding a Marantz PM66SE
  15. Cyrus 3 2nd stage fault.. HELP!
  16. Carver CM-1090 pre/pro help?
  17. Krell KSA 50 clone power supply.
  18. Pioneer receiver mods
  19. Are ground planes in audio pcbs legit?
  20. Radio
  21. Suggestions for output pairs
  22. First amp I ever built - An excellent simple class A amp for beginners
  23. Does anyone know.......
  24. bow technology is still live?
  25. Esoteric Asr schematic
  26. I need help getting started with an Onkyo M-501
  27. High Power, High Fidelity Lateral MOSFET Power Amplifier
  28. Cheaper way to test power supply stability?
  29. Battery Type for Portable Speakers
  30. high rail voltage chip amps?
  31. class A output stage without feedback for a DAC?
  32. Need help hooking up Ashly P70-400
  33. Surprising polycarbonate caps
  34. Cordell OF THE Amplifier
  35. help changing the crossover setting of my class A/B subwoofer plate amp
  36. catfet amplifier
  37. Did one sell Krell amp after building LM4702?
  38. is current in speaker load to be anyway closer to psu current ratings?
  39. Krell KRC-2 service-manual?
  40. Sound project Module
  41. Rega Brio-R design
  42. Scratchy sound coming from speaker
  43. Dx Zim (Zimmer) SMPS will be developed to release
  44. Grounding scheme and loop breaker, need advice..
  45. Sony TA-FE230 Left Channel Weak
  46. I need pcb for this scheme
  47. How to repair and diagnose amp problem?
  48. WAV File Reproduction Sound Project
  49. the Inverting stage
  50. What about car amps?
  51. Audiolab 8000p stopped working.
  52. Ampeg svt 3 pro Power Amp
  53. McIntosh amp smoking
  54. 2 x 15W rms Audio Amp for small speakers
  55. Mickey Mouse PA Amplifiers and Mixers (two brands MM + PAiCE) - Schematics wanted
  56. channel sound loss scott 350R
  57. Need information for MM AP360 Amplifier
  58. Help me please with NAD S300
  59. Arcam AVR-100
  60. Sansui AU-217 issues
  61. Marantz PM44SE power/relay? issues
  62. Rotel RC-1070 Preamp PSU Repair
  63. home wiring is old knob and tube-no ground plug
  64. Should I let unused amps sit or power them up and use them on occasion.
  65. i need LUXMAN L-570 service manual
  66. Luxman 115 preamped into Concept 16.5?
  67. NAD T752 Repair Advice
  68. Goldmund schematics
  69. The Spanish Trio 5700 story
  70. Newbie trying to learn about my GFA-535 internals
  71. Help: A question regarding PCB to PTP?
  72. Converting single-ended signal to balanced causes background noises
  73. LME49830 question
  74. It helps to select best class power amplifier (AB- 40-50 watts)
  75. Transformer for Nytech CA252 Amplifier
  76. Dynaco st120
  77. How good / bad is this amp made?
  78. Efficient Subwoofer Amplifier
  79. Need Help With BUZ901/906 MOSFET Amplifier
  80. Current conveyor
  81. Question on Transistor amplification
  82. Output subs for 2sa1301 & 2sc3280
  83. Technics SA-R 410
  84. Another "ancient" amp
  85. Burnt out transistors - replace with same or something better? Rotel RB-991
  86. Help with Adcom GFA555-II
  87. Sansui ba-5000 Large Cap Removal Help Needed
  88. help to select and correct 400w TDA2030A OR 200WTDA2030
  89. Cambridge Audio A500 & P500
  90. softstart recommendation for 2kva R-core and 1,00,000uf per rail x 2 caps
  91. Alternative buffer topologies
  92. 400 Watt in 8ohms/ 800 watt in 4 Ohms
  93. Until I can afford a digital unit Old Technics??
  94. Yamaha AX 500u schematic, integrated amp
  95. Power rating for short circuit protection in linear voltage regulator
  96. Leach Amp Tests (weird noise)
  97. Amplifier with a sound. How to build for second harmonic.
  98. TCAAS
  99. Pre amp recommendation
  100. what is cy7c6801a pc 645041 and what does it do?
  101. Raising bias on Marantz SR4200 AV Receiver
  102. Will this schematic work ? (2SK2221/2SJ352 only)
  103. Legacy Whisper vs Klipsh Cornwall loading Mark Levinson ML-2
  104. what happens if transistors are not matched? especially output stage..
  105. SOME CLASS H, AB ,PROTECT POWER AMPS
  106. Please help me understand the voltage regulator with external bypass BJT?
  107. Lead size of TO-3 package and where to get insulated jumper wires?
  108. Cross reference 2SD234
  109. about maintenance of amplifiers
  110. Help with this preamp
  111. Input line 120hz on speaker output in class A?
  112. Need help
  113. How to make LME49810 amp 2 ohm stable?
  114. Make Hifi with 3 Triple Sziklai transistors in Simple Class A
  115. 3000w power amp sadaru
  116. Input capacitor 2.2uf Polystyrene or Mundorf Silver/oil?
  117. Negative side Mosfet heating up with mild hissing
  118. Should a 250VA toriodal be blowing a 1A fuse?
  119. The questions about Hi-fi audio for home use.
  120. Denon Output Transistors.
  121. Sansui 9090 help
  122. Diamonds and Pearls
  123. Seeking DC Enlightenment
  124. FETZILLA - The Builders Place
  125. N-Channel JFET sub
  126. Simple 85W amplifier
  127. NAD T753 receiver: No sound
  128. Power Supply and Other Re-capping
  129. Power Supply and Other Re-capping
  130. 100watt mono amp find???
  131. help! noob recapping an amp... really stuck.
  132. Powerbass atm-440.2
  133. uPC1237 too slow
  134. What type of capacitors are these?
  135. +/- 36 Volt Voltageamp with TMC error correction
  136. Sound of Op Amps...
  137. THRESHOLD S-300 UPGRADE
  138. Alternative method load for power testing amps?
  139. THRESHOLD S-300 UPGRADE
  140. alternativ symmetric amp
  141. Has anyone ever had experience with MUSE opamps?
  142. Baking a pcb for removing moisture
  143. Nad 3020e lost some of its volume , distortion
  144. Hafler P3000
  145. Krell KSA-150 Power board Reassamble HELP Please
  146. accurate Output Stage
  147. N-Channel JFET
  148. Musical Fidelity A100 resistors
  149. Help me from JFET
  150. Parts for NAK CA5
  151. Help for Rega biasing value
  152. Replacement transistors, NAIM NAP90
  153. DC Detection Question
  154. Leach driven by DRV134
  155. TO-3 Removal
  156. HOW CAN I CREATE 10% THD ??
  157. Another ESP P3A PCB design thread
  158. joule thief (draw more power from a power supply?)
  159. Found: SAE Series Two Power Switch
  160. Restart search for PS Audio Elite schematic.
  161. NAD 114 switch-on.
  162. Cadsoft eagle package LSK389
  163. gallien-krueger MB150s 120v to 230v conversion?
  164. New modern amp or classic second hand?
  165. Capicator Whine? PPI PC2350
  166. How much big a heatsink has to be?
  167. NAD C326BEE upgrades
  168. Cyrus 2 - removing cover
  169. Idling setting for Yamaha MX-2000 ?
  170. Philips 391 Intergrated Amplifier guts?
  171. 500w mosfet power amp sadaru
  172. Adjusting DC offset issues
  173. New Lineup IDEA - Power Follower/Output stage
  174. PS Audio 100c thump
  175. Just scored a Sanyo DC-8500K, Can its preamp board drive a Matsushita EPC-451C?
  176. Krell KSA 250 - The Mother Clone !!!
  177. AV400 Bias adjust and Transistor burning accidents
  178. how to match the Transistors like toshiba 5200 1943
  179. Power amp right channel running hot.
  180. Class G plate amp problem
  181. ARCAM D290 DEAD - PLEASE HELP
  182. I am having fun..the one is saying bad things is a friend
  183. Increasing the output power of a car amplifier.
  184. PCB for TDA7295
  185. VSP Labs TransMOS
  186. CS800X output amp cicuitry
  187. Heatsink gradients and Vbe
  188. Are these ok for usage in a vas / current source ?
  189. help with Luxman l-200
  190. why do old amps sound is liked by many serious audiophiles even though...
  191. Best suited power mosfets for amplifiers
  192. why do old amps has sleeve on the resistors pins...
  193. A872e Replacement
  194. See any issues with this class A current clip detect circuit?
  195. Effects of emitter resistors in a hifi amp?
  196. Sansui 9090 bias
  197. Replacement For MPSU10/60
  198. Attempting to restore a Pioneer 202 spring reverb
  199. Quad 405 clone parts
  200. Parts quality does matter, yes, but..
  201. Sources for TO220 heatsinks?
  202. line level stereo volume control using one pot?
  203. REPLACE TIP36 + 2N3055 IN TDA2030A
  204. Amp is making loud "boom pop" noises every second or so..
  205. R24 incomplete
  206. Krell KSA-250 low frequency oscillation
  207. Newly built ESP P03 (not 3A) - rail to rail oscillation - suggestions?
  208. Musical Fidelity 3A-X preamplifier
  209. Denon DR-M07 Cassette Deck
  210. PCB manufacturer EU - thick copper ...
  211. Liquid discharge from capacitors?
  212. Adcom GFA-565 with very high DC offset
  213. Adcom GFA-2535 Bias Adjustment
  214. Balance control for MF pre-amp
  215. DAC what for ?
  216. An active Current Dump amplifier design idea.
  217. Mechanical Transformer Hum
  218. Va rating reloaded
  219. Threshold s/200 question
  220. thanks for help
  221. dmm hfe
  222. Parasound HCA-800 II - How to Bias?
  223. Rega channel selection broken!!
  224. Amp project to use 2 XFOS I have lying around
  225. Any hifi but simple line level stereo to mono converter?
  226. quad 303 burnt component
  227. Any Stockholm Members
  228. TA-N7B new circuit operation brochure
  229. Best location for amplifier's output inductor?
  230. NAD 3120 parts
  231. Maximum output power/current from a transformer?
  232. Sansui 9090 IC equivalent circuit
  233. Samson Servo 260
  234. Conn Organ Amp Question
  235. doubt about amplifiers and active crossover
  236. PV 1.3K won't drive 2 ohms with DDT on
  237. combining amplifiers help!
  238. High Brightness LED Zener Like Curve
  239. brand capacitors need for recap
  240. Dual CV-441 RC darlingtons modifications
  241. help with adcom 555 amp left channel death
  242. Class i
  243. Schematic or Parasound Zamp ver 1
  244. Emitter resistors, single piece?
  245. Crown Amplifier
  246. Apex HV23
  247. Input coupling capacitor sizing
  248. MTE AUDIO AMP
  249. Another NAD 3020e repair thread
  250. Peavey CS800X Power Transistors

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