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  1. Need help with possible receiver repair
  2. Update Musical Fidelity A1
  3. Q: removing Servo in amp
  4. Power supply capacitor replacement
  5. C audio RA3000 inProtection
  6. Krell KAV-250A - Issues and Amp Testing
  7. In dire need of help with a "squealing" amp.
  8. Current Feedback IC input in a power amp
  9. Adcom pop noise, need help on a fix.
  10. Headphone amp with mixed-in telephone audio
  11. Highly recommended German Amplifier Schematic !
  12. active sub input board help
  13. Sziklai power amplifier
  14. Need Help fixing Nikko Alpha 230
  15. luxman schematic, and advice needed
  16. Crate GX80 Channel switching
  17. Amplifier database
  18. What voltages and currents are present on amplifier outputs?
  19. capability unknown-
  20. Yamaha M-80 amp mods/maintenance
  21. technics SU Z45
  22. Pioneer amp project
  23. Help Set-up Kenwood KAC-1020 Power Amp
  24. Parasound DR-40
  25. Hitach lateral MOSFETs - back in March 1978
  26. Class B ReVishited
  27. Help with Cambridge A3i
  28. help setting up idle current
  29. do mosfets suffer from magnetic fields
  30. Looking to replace 6800uF 50V filter caps
  31. MOSFET simply blew up ?
  32. Ltp ...protection ????
  33. Schematic
  34. Sescom MI-14 as SE to XLR?
  35. Caps for Carver M1.0T
  36. Marantz PM94 Please Help
  37. PSL amplifier schematic
  38. Siliconix & Siemens NMOS amplifiers
  39. Recap Krell KSA200S
  40. Amplifier modules for active speakers
  41. Heat Kills. Right?
  42. Interesting new devices
  43. Monoblock design - left and right bank of output devices
  44. Need help with narrow frequency amp.
  45. Delay time through power amp?
  46. 2sc1384 Swap-out
  47. Yamaha R-500 Receiver
  48. Ultimate space age preamp
  49. New Class A, Super-A, Non-Switching : need a revival ?
  50. Schematic for Nady SPA1400
  51. chipamps good for quality sound?
  52. Check for oscillating amplifier
  53. Carlsbro DX 12-2 Mixer
  54. Distortion with "real" loads
  55. Trying to fix HK930
  56. Evens C-500 amplifier ....opinions?
  57. Fun Project Suggestion for a busted NAD2100?
  58. Dayton Wright Power Amplifier XEC-1000 - schematic wanted
  59. Creek A42 Stereo Power Amplfier
  60. Amplifier motherboard
  61. Collection of Class B topologies <100mA Idle and Sound closest by Class A
  62. amp for everybody
  63. Renesas Hitachi 2SK1058 & 2SJ162 Lateral MOSFET
  64. Does anyone know the manufacturer and origins of this transistor?
  65. Pease opines on the '797 "part"
  66. Just got a Marantz 2200
  67. build amplifier F1 of Nelson Pass
  68. Behringer ep 2500 service ....
  69. 900W H-class PA Amp with Limiter
  70. Krell KSA200S Bias
  71. No feedback amp
  72. Folded Cascode in the Making
  73. Basic6 Amp from 41hz audio- volume control?
  74. AmpsLab HX200amp
  75. Are there Sugden (Sugdenaudio) Single ended power stages? Schematic wanted
  76. Amplifiers.... inductive or resistive load?
  77. How to identify a quasi-complementary amplifier?
  78. Tone control kit?
  79. Adcom 545 Schematics needed
  80. OPA547F Waveform Generator
  81. Tone control
  82. Help me id this amp
  83. Radio Amplification
  84. Need help with Rockford Fosgate 801s
  85. My idea di MonoBlock esoteric
  86. VAS with Miller compensation zero
  87. Will Donate $30 to Forum for Help Repairing GAS Gandson Amp
  88. Fast Rectifiers for Power Supplies
  89. Advice needed on RoHS regulations
  90. Why you're clock is wrong
  91. replacement for mje15003&4
  92. ARCAM A75 help
  93. Diodes from colector to emitter in power output transistor
  94. TIP3055/2N3055 based power amps
  95. Key matrix circuit ... Help
  96. class A to Hybrid
  97. JBL Powered SubWoofer - Schematic Needed
  98. Diffl Input BJT Matched Pair sub A979?
  99. Your Amp Light Bulb Current Testing Rig??
  100. P3A strange problem (thumb when applying input signal)
  101. DC Servo MOSFET Amplifier
  102. Double transistors in the VAS Why?
  103. what schematic do you need?
  104. Just got me a realistic STA 2080
  105. NAD 319 Crackling?
  106. 250 HCCA comp amp / need help
  107. MOSFET Amplifier IRFP240/IRFP9240
  108. Need help from Europe
  109. Marantz t7
  110. Looks like more bogus obsolete IC's...
  111. Switchoff speed capacitor
  112. Crackle & pop - Fixing and old Amp
  113. Phase Lead: C or RC compensation
  114. Class A electronics ban?? fact or fiction
  115. old school amp setup
  116. Help diagnosing Marantz SR 1000
  117. Help wanted in geelong
  118. Picked up an Art SLA2, found the internals interesting
  119. GND/Earth Wiring Management by Power Amplifiers - what is the royal Way
  120. Pioneer SX-780 pre/main split?
  121. 2x 500w amplifier
  122. MOSFET cookbook
  123. Free Schematics/Service Manuals - Contributions Required
  124. 200w amplifier under development help needed
  125. Carlsbro Cobra 90
  126. Help troubleshooting a Cambridge A500
  127. Cap Across Switch on Older Amps
  128. need help with krell ksa 100
  129. DIY Shelf Stereo System?
  130. Mosfet Power Follower with 1:1 Output Transformer questions
  131. Schematic for Alesis RA-100... Ha! Alesis doesn't have it!!
  132. Technics SL-23
  133. Life expectancy for used electrolytic caps
  134. B&K ST-140 Check-out Upon Power Up
  135. Where to get LM234 to 92 pkage replacements?
  136. New oak panel for an old pal.
  137. Burnt PCB on the STR-K1600
  138. Audiolab 8000A DC thumps
  139. MJ Magazine (formerly Musen to Jikken) - Yearly Index from 1924 - 2009 wanted
  140. Missing instructions for ETI-480 (help!)
  141. Ultimate Integrated Amp - Logical Wings Miracle Drive "USO800-Pro", who have heard ?
  142. QSC RMX1450 FAMILY ( long )
  143. Borbely Class A question
  144. Whatza LA3170? Regular op-amp or sunthin special? Subs?
  145. Audiolab 8000S Service Manual
  146. mps6566 transistor substitution
  147. Multiple Receiver Switch Box
  148. citronic sa 200 schematics required
  149. Class A low power (5-10w) amp suggestion needed
  150. Yamaha G-5 guitar amp
  151. Magnum IA120 Integrated information
  152. Moderator - have a favor to ask - replacement transistors
  153. Anybody familiar with current limiting on Technics amp modules?
  154. The NEM AI-50
  155. Dh200 hum?
  156. Best possible use for......
  157. Sugden A28II info
  158. Small low power amplifier to put inside guitar
  159. Bandwidth vs distortion?
  160. Aiwa AX 7800-G Receiver
  161. Analog bilateral switches
  162. NAD 710 Receiver - service manual
  163. Need help finding pictures
  164. Looking for manual, NAD monitor series 3300
  165. ROTEL 981 or something else..?
  166. A ...power amplifier
  167. CS800x Fan
  168. Class AB Amp kit
  169. Q10 Amp
  170. 20 Watts Car Stereo Amp with TDA2004
  171. 1985 Yamaha r8 receiver
  172. NAD 2100 - Shorted Transistors
  173. Variations of DC Main Filter against buzzing Toroid Transformers - what is the right?
  174. Alternative method of a loop breaker - Will I kill myself?
  175. Krell Current Audio Signal Transmission C.A.S.T. - Current mode Technology = CMT
  176. BOSE 1800 Two series power amp
  177. Bose Wave Music Syst. Ultimate Sound? Gallery from inside Devices - Serv. Man. wanted
  178. simulating distortion with complex loads
  179. Vincent SV-226
  180. Good and affordable kit? any recommendations?
  181. schematic download sites i have found
  182. Accuphase MCS
  183. MK sub not working
  184. Recovery from clipping, soft clipping
  185. APart Champ-2 power amplifier?
  186. Floating Cascode
  187. Adcom GFA 535 power switch sticking
  188. Phase Linear and Sansui parts
  189. Overhaul
  190. OptiMOS amplifer build issues, help needed please
  191. Germanium Power Stage Amp - help needed
  192. Armstrong 626 problem
  193. Solid State Testing- Tug of war
  194. AD825: class-A operation + bypassing/snubbing
  195. Small signal Mosfet AB PA?
  196. Cyrus 2 Amplifier - 2SC1775A + 2SA872A Equivalent/Replacements?
  197. Help for replacement NJM4580 with AD8620
  198. BGW 7000 rebuild...
  199. Diode across an op-amp???
  200. Camtec Marriola MIG D1 does not power up
  201. Kenwood KA-1500 transistor fault?
  202. 12AU7 + mosfets
  203. Musical Fidelity A100 fans
  204. marantz PM7200 dead
  205. Rowe Ami 125W Amp Board Inputs
  206. Yamaha Components
  207. NAD 3020 square buttons
  208. Adcom GFA-5802 Biasing
  209. Volume dropout
  210. Thule Audio's Universal Inrush Current Limiter for their Amplifiers - very special?
  211. noob with a perplexing problem.
  212. Thule Audio's GND Management by Integrated Amplifier with RC - who can explain
  213. Harman Kardon Citation A transistor help.
  214. Amplifier recommendations?
  215. Bad sub; No music!!
  216. Amplifier Design for Fractional Ohm Loads
  217. My first amplifier, need help to choose schematic
  218. FM test signal to indicate PIM?
  219. Sugden C51 control unit circa 792
  220. Omtec Mono Power Amplifier "CA 25" (CA25) - Schematic wanted
  221. Wierd Interference on Phone Pre
  222. JVC Subwoofer distorted
  223. Bridging Rotel RB956ax: I don't understand how it works
  224. SAE C3A output transistor order
  225. Max/Actual Output Level vs. Distortion
  226. Velleman k4005
  227. Determining causes of distortion
  228. diy discrete high power opamp
  229. Left channel not working with my speakers on my Technics SA-303 receiver
  230. Need help reducing noise of Amp!
  231. marantz 4270 receiver quadradial
  232. CSPP/Cirlotron - Brand Names of Commercial Solid State Amplifiers
  233. Marantz PM-66SE Right Channel Fault
  234. Dynaco ST120/150 PCBs?
  235. schematics for yamaha ax-630
  236. studiomaster vision 8
  237. Salvaging parts from vintage receiver for DIY
  238. An initial watt revision of a classic little amp
  239. SS Hi-fi Pioneer SA 6800
  240. Ultimate ECC for Class B from Thule Audio? Topology also used by Teac
  241. Tone control
  242. Better Audio by Solid State Amps after Coaching of certainly Electrolytic Caps ??
  243. Pioneer vsx836-rds
  244. THRESHOLD SA-3 : please, I need your help
  245. MJE9400 & MJE9450 data sheet
  246. Time/Heat induced crackle? Help (Lace Acoustic TA35cr)
  247. Need comments on Semlab LMOS application Circuit
  248. fuses and best speakers cables hehehehehe
  249. Need a Pioneer SA-9800 Supply Tranny
  250. Replacement for 70's Vintage Japanese TO-3