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  1. Which circiut is better?
  2. capacitor question
  3. best load gainclone?
  4. mosfet opinion?
  5. VIntage JVC 4-channel equipment
  6. Upgrading a Carver M200t/M400t
  7. Hafler 9500 Power Switch
  8. Rotel rb970bx mk11 dead
  9. personal jobs
  10. A cooling Primer?
  11. Looking for Perreaux SXV1 schematic
  12. Cyrus 2 Resistors
  13. RC Volume control for a lateral MOS AMP..
  14. Marantz 250 schematic needed
  15. Floating supply in battery powered discreet preamp
  16. PCB for JLH amp
  17. 10 watt Simple Power Amp
  18. Rotel RX950 with humming noise
  19. Hi Fi Plan
  20. Soft start + switch on PCB
  21. PLS-226 Schematic
  22. Rotel RX-830
  23. LCR EQ questions
  24. more info about "Voxson"
  25. Sourcing Genuine Toshibas in USA
  26. A09 class A pionner
  27. Toroid Transformer for Hafler DH-200
  28. passive preamp
  29. Sansui TU-9900 Restoration and Mods
  30. humming Harman Kardon 330B
  31. Sony TA-AV670 amp repair
  32. Schematic 500w
  33. Opinions from amplifier analysers on these amp circuits
  34. auditek speakers chip amps
  35. Bias Monitoring of Separate Heatsinks
  36. Differential transistor input stage
  37. Connecting OSCONs in series for high voltage.
  38. difference of 1st stage
  39. PCB hiraga 20w
  40. QSC designs
  41. BJTs for VAS Stages
  42. tweaking a class AB amp
  43. How much amplifier power do I need
  44. A cirucit to put Carlos anti-blameless stance to permanent rest.
  45. Ayre MX-R "Uma"
  46. NAD 2200 power supplay help needed
  47. Searching for high hfe, low noise and cob PNP BJT
  48. A SAP15 based power amp
  49. Cleaning Those Female (+) R.C.A. Jacks
  50. Pi filter for Class AB amplifier, feedback please
  51. philips FA-951
  52. Phase Linear 700B Series II -Right channel out-
  53. Grounding questions
  54. thomann pa amp
  55. CRC power amp supply
  56. Any suggestion about YBA model INTEGRE DELTA DT
  57. Amp power calculations into different phase angles
  58. Harmon Kardon HK6100
  59. hum problem in NAD 3020 (help wanted)
  60. For 35A rectifiers, what is maximum without heatsink
  61. Mod - Upgrading opamps in a yamaha av receiver
  62. Upgrading Power Supply in QUAD 606 Mk2
  63. Data needed for an STK350-530 SIP IC
  64. Integrating Baffle step into Cyrus 2 feedback circuit.
  65. Yamaha DSP-E390 schematic
  66. Hum in phono circuit
  67. Keeps frying diodes
  68. Looking for Scott 480A schematics
  69. Quadral PA 03 Phonologue
  70. John Linsley Hood RIAA Preamp?
  71. amp question basic rec
  72. Tip33.....anyone got a schem.
  73. Using bipolar opamps
  74. Building an HT Amp-paralleling output devices?
  75. Amp info ????
  76. cyrus one - on/off power button
  77. Audio Research output transistors
  78. Owners manual needed, MUSE MODEL ONE
  79. Please Help! Harman Kardon HK775, problems
  80. Direct coupled Amp causing me grief...
  81. Electrocompaniet Mains Voltage conversion
  82. dc output control loop
  83. base-emitter voltage
  84. IRFP450 Replacements?
  85. How to set the bias of a FET output stage?
  86. Opamp upgrades
  87. NAD 7020 , small problem...
  88. Sansui AU-317 schematic
  89. Help!very Powerful Amp Needed!
  90. YBA integre output transistors
  91. here links diy schemas
  92. SPICE model of Dirty Harry
  93. Tripath Head Amps ?
  94. link to diycircuits
  95. naim information
  96. Lightspeed Tone Control...
  97. Test Amp - Construction Method
  98. What amp should I build?
  99. Power Amplifier Output Topologies
  100. hk citation twelve stock or mosfet version to drive original quad esl's ?
  101. p3a amp
  102. NAD C370 Diagnosis and repair help
  103. diy helppppp
  104. nad 3020 fried resistors
  105. Hummm...
  106. Testing the module AV400
  107. NAC 82 Schematic and Photos
  108. citation 12 hum und bias difficulties to adjust
  109. found a Technics SA-8100X
  110. Can you help me choose capacitors for my amplifier restoration project?
  111. If you put new output transsistors, class A/B, will tou match them?
  112. Plate Amp power cutout
  113. How to use P- and N-channel Mosfet as switches
  114. Harmon Kardon PM 640 amplifier
  115. Kantishna MK III, experimental MOSFET AMP
  116. Opamp PSRR
  117. +-70V amp needed
  118. noise level hearing evaluation
  119. Why no Pre-amplifier forum?
  120. Noob Question: What is a volume buffer?
  121. bora's legend 8 legend 4
  122. buffer ics: comparisons / experiences ?
  123. Simple balanced driver circuit.
  124. Possible upgrade for Sanken Darlingtons
  125. Fotios's microphone amplifier
  126. AKAI VS422 schematics
  127. Cascoded LTP input stages
  128. Building a new Amp
  129. Part Spec Help! (possible 2n4484)
  130. Nad 2240pe
  131. Samson F800 Audio Amplifier Problem
  132. Preamp
  133. Amp oscillation
  134. A powerFULL amplifier named Dirty Harry
  135. Just how good is the PIMETA?
  136. A circuit model for a microphone?
  137. IGBT amplifiers
  138. layout rules
  139. Advice on fixing an old amp that has just stopped working
  140. "reference" level preamplifier
  141. LM4562 vs TL072 and NE5532 ..impossible ?
  142. Why haven't some of you actually started small companies?
  143. Do transistors deteriorate?
  144. ampli for Martin Logan Quest Z
  145. Marantz PM44SE - Dead(ish) right channel
  146. Amcron (Crown) Micro-Tech 1200 help
  147. nakamichi amplifier 1
  148. My Audio Dynamics/ADC amp needs help!
  149. Dead Adcom GFA-555II
  150. Variac
  151. trouble with Denon POA 2800 amp - Anatech rsvp
  152. Marantz PM 7200 problem?
  153. Mjl3281 Soar
  154. Battery vs Conventional PSUs
  155. Which is the better power supply for a preamplifier?
  156. Wow!!! A wonderful preamplifier module!
  157. Aussie Amplifier AV 400
  158. hafler and adcom
  159. QUAD 606 Mk2 Power amp PROBLEMS
  160. Microphone "whistel" canceler schematic need!
  161. sansui Intergrated Amp SU-7900
  162. Audio Amplifier protections
  163. thanks BORA !!!!
  164. Safe to run IRF540 on +-42V?
  165. Power Amplifier Clipping Indicator
  166. Differences in Mosfet P and N channel Vgs
  167. Yamaha M-80 Schematics
  168. krell 300i schematic please or photos
  169. Best sounding analog switch IC for input source selector
  170. Ak4527vq
  171. Ge transistors
  172. hybrid amp,split ouput
  173. resistors and capacitor which one have the best sound ???
  174. DIY 200w amp
  175. Samson Servo 260 problems
  176. VSP LABS Trans Mos Amplifier
  177. cyrus3 experts
  178. Rail Switching vs. "predictive" rail switching
  179. Proposed P.C. based spectrum analysers
  180. How come chokes arent common with SS psu?
  181. Loud POP 555mkII moderate volume.
  182. critique my amp design please
  183. What to build with +/-65V?
  184. Aleph P1.7 "the design starts here"
  185. SAE A502 Keeps smoking protection transistors
  186. How about shunt regulatorH
  187. 1500 Watt
  188. audio research d400
  189. volume pot
  190. eti-480 help
  191. Suggested line level stage.
  192. How much should be it the Zin of a Power Amplifier?
  193. Rail switching amplifiers and supply voltage levels
  194. Leak stereo 70 fault
  195. Roksan Kandy mkIII Tweaks????
  196. ac cord
  197. A Dummy Load different from the usual
  198. Amplifier for 1-ohm ribbons?
  199. who knows this transistor?
  200. parasound input conversion
  201. HELP! Carver PM-1200 MANUAL/SCHEMATIC
  202. NAD 302 Improvements
  203. Current sink, anyone studied lowest noise?
  204. ExtremA, class-A strikes back?
  205. Bias control problem with n-channel amplifier (Anthony E. Holton)
  206. Best ground connection
  207. Symasym - Roender Style
  208. leach amp parts to-3
  209. detailed block diagram of Sony CXD1135Q
  210. Simple pre-amp schematic needed
  211. Need a krell 300i amp schematic
  212. The first half of my 69JLH works!!
  213. I wang to do it:uhc mos amplifier
  214. How to test mosfet?
  215. Newbie voltage regulator question
  216. problem with preamplifier simulation
  217. Suppier of MJL21193/4 trannies in Australia?
  218. Zobel Network Corrections
  219. Zhalou P1 Audio Power Amplifier
  220. Should I call this pre-amp+ PDB a "SPLIF" Amp?
  221. My 1st order butterworth filter better than 4th order L-R: Why?
  222. counterpoint sa100 headaches
  223. Trace Elliot TA100R - schematics needed
  224. Parasound HCA1500A amp schematic
  225. What is nested feedback, how it realy works and some examples...
  226. EXPOSURE X Integrated Amp Help
  227. Akai AA-1030 schematic?
  228. Carver C-1 Preamp Power Switch
  229. Replacing IGBTs with BJTs in Elektor IGBT design!
  230. Open loop bandwidth in op-amp.
  231. DIY NAim amplifier
  232. setting bias for power FETs?
  233. Modern transistors for CFP output for preamp
  234. the NFB and the time lag in L.F. and H.F.
  235. VAS, the stage that makes or breaks audio nirvana??
  236. Leach amp problem
  237. Charge pumps as power supplies
  238. Exposure model 8 output transistors
  239. Cascode and phaseshift relation
  240. Amplifier NPN+PNP Transistors Tester Circuit
  241. marantz pm7200 preamplifer
  242. Sub-woofer high level input
  243. SE Class-A developing
  244. Interesting crossover question
  245. Two preamp swithceroo. Suggestions?
  246. Crown IC-150A POOGE
  247. Help with upgrades to integrated amp
  248. NAD 7225PE schematic wanted
  249. mismatch in bridging 2 channels
  250. Quad 405: Bernd Ludwig's new Mod text

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