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  1. Cheaper way to test power supply stability?
  2. Battery Type for Portable Speakers
  3. high rail voltage chip amps?
  4. class A output stage without feedback for a DAC?
  5. Need help hooking up Ashly P70-400
  6. Surprising polycarbonate caps
  7. Cordell OF THE Amplifier
  8. help changing the crossover setting of my class A/B subwoofer plate amp
  9. catfet amplifier
  10. Did one sell Krell amp after building LM4702?
  11. is current in speaker load to be anyway closer to psu current ratings?
  12. Krell KRC-2 service-manual?
  13. Sound project Module
  14. Rega Brio-R design
  15. Scratchy sound coming from speaker
  16. Dx Zim (Zimmer) SMPS will be developed to release
  17. Grounding scheme and loop breaker, need advice..
  18. Sony TA-FE230 Left Channel Weak
  19. I need pcb for this scheme
  20. How to repair and diagnose amp problem?
  21. WAV File Reproduction Sound Project
  22. the Inverting stage
  23. What about car amps?
  24. Audiolab 8000p stopped working.
  25. Ampeg svt 3 pro Power Amp
  26. McIntosh amp smoking
  27. 2 x 15W rms Audio Amp for small speakers
  28. Mickey Mouse PA Amplifiers and Mixers (two brands MM + PAiCE) - Schematics wanted
  29. channel sound loss scott 350R
  30. Need information for MM AP360 Amplifier
  31. Help me please with NAD S300
  32. Arcam AVR-100
  33. Sansui AU-217 issues
  34. Marantz PM44SE power/relay? issues
  35. Rotel RC-1070 Preamp PSU Repair
  36. home wiring is old knob and tube-no ground plug
  37. Should I let unused amps sit or power them up and use them on occasion.
  38. i need LUXMAN L-570 service manual
  39. Luxman 115 preamped into Concept 16.5?
  40. NAD T752 Repair Advice
  41. Goldmund schematics
  42. The Spanish Trio 5700 story
  43. Newbie trying to learn about my GFA-535 internals
  44. Help: A question regarding PCB to PTP?
  45. Converting single-ended signal to balanced causes background noises
  46. LME49830 question
  47. It helps to select best class power amplifier (AB- 40-50 watts)
  48. Transformer for Nytech CA252 Amplifier
  49. Dynaco st120
  50. How good / bad is this amp made?
  51. Efficient Subwoofer Amplifier
  52. Need Help With BUZ901/906 MOSFET Amplifier
  53. Current conveyor
  54. Question on Transistor amplification
  55. Output subs for 2sa1301 & 2sc3280
  56. Technics SA-R 410
  57. Another "ancient" amp
  58. Burnt out transistors - replace with same or something better? Rotel RB-991
  59. Help with Adcom GFA555-II
  60. Sansui ba-5000 Large Cap Removal Help Needed
  61. help to select and correct 400w TDA2030A OR 200WTDA2030
  62. Cambridge Audio A500 & P500
  63. softstart recommendation for 2kva R-core and 1,00,000uf per rail x 2 caps
  64. Alternative buffer topologies
  65. 400 Watt in 8ohms/ 800 watt in 4 Ohms
  66. Until I can afford a digital unit Old Technics??
  67. Yamaha AX 500u schematic, integrated amp
  68. Power rating for short circuit protection in linear voltage regulator
  69. Leach Amp Tests (weird noise)
  70. Amplifier with a sound. How to build for second harmonic.
  71. TCAAS
  72. Pre amp recommendation
  73. what is cy7c6801a pc 645041 and what does it do?
  74. Raising bias on Marantz SR4200 AV Receiver
  75. Will this schematic work ? (2SK2221/2SJ352 only)
  76. Legacy Whisper vs Klipsh Cornwall loading Mark Levinson ML-2
  77. what happens if transistors are not matched? especially output stage..
  78. SOME CLASS H, AB ,PROTECT POWER AMPS
  79. Please help me understand the voltage regulator with external bypass BJT?
  80. Lead size of TO-3 package and where to get insulated jumper wires?
  81. Cross reference 2SD234
  82. about maintenance of amplifiers
  83. Help with this preamp
  84. Input line 120hz on speaker output in class A?
  85. Need help
  86. How to make LME49810 amp 2 ohm stable?
  87. Make Hifi with 3 Triple Sziklai transistors in Simple Class A
  88. 3000w power amp sadaru
  89. Input capacitor 2.2uf Polystyrene or Mundorf Silver/oil?
  90. Negative side Mosfet heating up with mild hissing
  91. Should a 250VA toriodal be blowing a 1A fuse?
  92. The questions about Hi-fi audio for home use.
  93. Denon Output Transistors.
  94. Sansui 9090 help
  95. Diamonds and Pearls
  96. Seeking DC Enlightenment
  97. FETZILLA - The Builders Place
  98. N-Channel JFET sub
  99. Simple 85W amplifier
  100. NAD T753 receiver: No sound
  101. Power Supply and Other Re-capping
  102. Power Supply and Other Re-capping
  103. 100watt mono amp find???
  104. help! noob recapping an amp... really stuck.
  105. Powerbass atm-440.2
  106. uPC1237 too slow
  107. What type of capacitors are these?
  108. +/- 36 Volt Voltageamp with TMC error correction
  109. Sound of Op Amps...
  110. THRESHOLD S-300 UPGRADE
  111. Alternative method load for power testing amps?
  112. THRESHOLD S-300 UPGRADE
  113. alternativ symmetric amp
  114. Has anyone ever had experience with MUSE opamps?
  115. Baking a pcb for removing moisture
  116. Nad 3020e lost some of its volume , distortion
  117. Hafler P3000
  118. Krell KSA-150 Power board Reassamble HELP Please
  119. accurate Output Stage
  120. N-Channel JFET
  121. Musical Fidelity A100 resistors
  122. Help me from JFET
  123. Parts for NAK CA5
  124. Help for Rega biasing value
  125. Replacement transistors, NAIM NAP90
  126. DC Detection Question
  127. Leach driven by DRV134
  128. TO-3 Removal
  129. HOW CAN I CREATE 10% THD ??
  130. Another ESP P3A PCB design thread
  131. joule thief (draw more power from a power supply?)
  132. Found: SAE Series Two Power Switch
  133. Restart search for PS Audio Elite schematic.
  134. NAD 114 switch-on.
  135. Cadsoft eagle package LSK389
  136. gallien-krueger MB150s 120v to 230v conversion?
  137. New modern amp or classic second hand?
  138. Capicator Whine? PPI PC2350
  139. How much big a heatsink has to be?
  140. NAD C326BEE upgrades
  141. Cyrus 2 - removing cover
  142. Idling setting for Yamaha MX-2000 ?
  143. Philips 391 Intergrated Amplifier guts?
  144. 500w mosfet power amp sadaru
  145. Adjusting DC offset issues
  146. New Lineup IDEA - Power Follower/Output stage
  147. PS Audio 100c thump
  148. Just scored a Sanyo DC-8500K, Can its preamp board drive a Matsushita EPC-451C?
  149. Krell KSA 250 - The Mother Clone !!!
  150. AV400 Bias adjust and Transistor burning accidents
  151. how to match the Transistors like toshiba 5200 1943
  152. Power amp right channel running hot.
  153. Class G plate amp problem
  154. ARCAM D290 DEAD - PLEASE HELP
  155. I am having fun..the one is saying bad things is a friend
  156. Increasing the output power of a car amplifier.
  157. PCB for TDA7295
  158. VSP Labs TransMOS
  159. CS800X output amp cicuitry
  160. Heatsink gradients and Vbe
  161. Are these ok for usage in a vas / current source ?
  162. help with Luxman l-200
  163. why do old amps sound is liked by many serious audiophiles even though...
  164. Best suited power mosfets for amplifiers
  165. why do old amps has sleeve on the resistors pins...
  166. A872e Replacement
  167. See any issues with this class A current clip detect circuit?
  168. Effects of emitter resistors in a hifi amp?
  169. Sansui 9090 bias
  170. Replacement For MPSU10/60
  171. Attempting to restore a Pioneer 202 spring reverb
  172. Quad 405 clone parts
  173. Parts quality does matter, yes, but..
  174. Sources for TO220 heatsinks?
  175. line level stereo volume control using one pot?
  176. REPLACE TIP36 + 2N3055 IN TDA2030A
  177. Amp is making loud "boom pop" noises every second or so..
  178. R24 incomplete
  179. Krell KSA-250 low frequency oscillation
  180. Newly built ESP P03 (not 3A) - rail to rail oscillation - suggestions?
  181. Musical Fidelity 3A-X preamplifier
  182. Denon DR-M07 Cassette Deck
  183. PCB manufacturer EU - thick copper ...
  184. Liquid discharge from capacitors?
  185. Adcom GFA-565 with very high DC offset
  186. Adcom GFA-2535 Bias Adjustment
  187. Balance control for MF pre-amp
  188. DAC what for ?
  189. An active Current Dump amplifier design idea.
  190. Mechanical Transformer Hum
  191. Va rating reloaded
  192. Threshold s/200 question
  193. thanks for help
  194. dmm hfe
  195. Parasound HCA-800 II - How to Bias?
  196. Rega channel selection broken!!
  197. Amp project to use 2 XFOS I have lying around
  198. Any hifi but simple line level stereo to mono converter?
  199. quad 303 burnt component
  200. Any Stockholm Members
  201. TA-N7B new circuit operation brochure
  202. Best location for amplifier's output inductor?
  203. NAD 3120 parts
  204. Maximum output power/current from a transformer?
  205. Sansui 9090 IC equivalent circuit
  206. Samson Servo 260
  207. Conn Organ Amp Question
  208. doubt about amplifiers and active crossover
  209. PV 1.3K won't drive 2 ohms with DDT on
  210. combining amplifiers help!
  211. High Brightness LED Zener Like Curve
  212. brand capacitors need for recap
  213. Dual CV-441 RC darlingtons modifications
  214. help with adcom 555 amp left channel death
  215. Class i
  216. Schematic or Parasound Zamp ver 1
  217. Emitter resistors, single piece?
  218. Crown Amplifier
  219. Apex HV23
  220. Input coupling capacitor sizing
  221. MTE AUDIO AMP
  222. Another NAD 3020e repair thread
  223. Peavey CS800X Power Transistors
  224. Schematic for sound craft spirit mate 350
  225. audiolab 8000a transformer blown!
  226. TEAC Distinction Series AI-2000 Integrated
  227. Sony amp - loud static on Rch
  228. Audiolab 8000A Class A?
  229. Pioneer SA 9500 mk 1
  230. Clip Light
  231. Prototype power amplifier
  232. Please help me choose my next amplifier build!
  233. Adcom GFA555-II help needed...
  234. Help on restoring amplifier
  235. Good Article on Vintage vs New Hi Fi Equipment
  236. how do I make a push-pull amplifier?
  237. Voltage regulator oscillation at 850khz at high current
  238. Kind of embarasing but how do I use this toroidal transformer?
  239. Little GEM
  240. (Creating) TDA7375 based amp
  241. TDA7375 based amplifier (creation)
  242. Kenwood KM X-1000 service manual
  243. Krell KSA 100 mk2 recap- advice required
  244. Proven class AB designs for ~100 watts of output
  245. ~100khz sinudodial signal superimposed on the output of a common emitter stage
  246. how important is damping factor of 1000
  247. Yamaha P7000s faulty
  248. Can I remove hum from active speakers?
  249. WLX-7 Speaker protection board
  250. SuperFeel 6 - a new configuration

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