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  1. 12V to 250V/20mA power supply with ne555-needed
  2. HH Eletronic M900 any good??
  3. What do you like more BJT vs JFETs?
  4. Radial Lead Emitter Resistors
  5. Need Relay for Technics SA-5270
  6. JLH 1969 first amplification stage, need explanation
  7. Musical Fidelity original transistors and upgrades
  8. Urgent : Forum members in France Toulouze
  9. ultra low noise regulator
  10. Transistor differences due to manufacturing?
  11. Marantz sr5002 only takes input in 1 channel
  12. Need help understanding Haffler DH220 Design
  13. Rotel amplifier RA1412
  14. CFP TMC EF3 VFA
  15. 20W transistor audio amp
  16. Marshall Avg150h Problem
  17. Anyone have a schematic for a Realistic SA-102?
  18. Extreme Hi-End Hybrid Amplifier End
  19. to92 transistor replacement
  20. Another CFA from MJ Magazine
  21. Is it ever desirable to have *low gain* transistors?
  22. what software is this?
  23. Request redrawing schematic from pdf to eagle
  24. Very interesting Youtube and Blog on Measuring Instruments and repair.
  25. 4 ohm speakers with a Plinius SA50?
  26. How to wire an inuke to my A/V receiver?
  27. Pioneer amp + b&w speaker, good match ?
  28. Where to buy assembled pcb boards ??
  29. soundcraftsmen PCR-800 Question
  30. Help with first amplifier design
  31. BC550 vs KSC1845, BC560 vs KSA992 and others.
  32. Step further from zen
  33. Thule Spirit IA100
  34. 10000uf 71V E. caps
  35. How to measure Vrms of laptop headphones jack output?
  36. Hybrid question
  37. Quad 405 - Bridge Mod
  38. technics power transformer
  39. NAD C300 strange sound, then dim red light only. Ideas?
  40. sj201-y for sony amp
  41. [Question] RCA DIY replacement & Rust on the solder joint
  42. 1N60 diode replacement
  43. Racking (1) 500-series in 1U / 2U...
  44. Simple BJT class A stage reduce white noise
  45. Audiolab Pre/Power problem question
  46. LME49810 with a pair of Jfet source followers at the input?
  47. Elector amplifiers articles
  48. Articles from Hi Fi News Mid 1980s
  49. Help with Kenwood M2A
  50. Arcam Alpha 8 DC offset adjustment
  51. Trimpot on 2SK170 for matching on a Pacific Phono Stage
  52. Standing current through ungapped choke
  53. Recommended Amps (clones included)
  54. NAD 565BEE
  55. dull sound, but flat frequency response up to 20kHz
  56. Parasound halo a23 removable bottom cover?
  57. Help me to understand this phono pre;
  58. Paralleing Lateral mosfets and source resistors required?
  59. My first build: DoZ
  60. My First Amplifier Design
  61. ADCOM GFA555II Static Pop
  62. Behringer A500 Supply Rail Voltage.
  63. Advantages of Power Cords with braided Shield for high Power Solid State Power Amps
  64. Rotel RX-845 Burning Resistors
  65. 75w Vmos Amplifier (le haut parleur n1739)
  66. 40w audio amplifier
  67. Where do you buy your components?
  68. quad 405 mono block bodge up
  69. Please help troubleshoot my HEXFET amplifier
  70. Thule IA60B restoring/tweaking
  71. Sony TA-5650 V-Fet making it sound even better...
  72. Filter Capacitor Ventialtion?
  73. Mystery component in a Classe power amp
  74. Connector Help
  75. parasound halo a23 ps cap size dimentions needed please!
  76. right channel brighter than left - Pioneer SX680
  77. TGM9 - my version of the JLH '69 Class A amplifier
  78. Why having diodes from output to rail in OPS?
  79. Changing tone characteristics on amp board
  80. Fetulele Amp
  81. convert sugden a88 to power amp
  82. Musical Fidelity Synthesis
  83. Help to convert these Lat-Fet amp to Toshhiba mosfet
  84. Need a little help with amplifier protection circuit problem
  85. Please comment on this IPS/VAS design
  86. Class "A" Solid State
  87. Denon DRA-335r problems
  88. Adcom GFA-5300 rebuild, manual needed, parts upgrades?
  89. Reservoir in Electrocompaniet otala amplifier
  90. Lateral MOSFET amplifier project
  91. TDA7297 output
  92. Help me repair my Hafler DH500?
  93. Info and spec needed for Harrison 1200
  94. Please help denon avr 1804 5.1 not working
  95. marantz like pre-amp
  96. Crest amplifier repair
  97. I need help, how to charge to renovate sophisticated Solid State amplifiers
  98. Crest Pro9200
  99. Brass PCB stanoff size
  100. Harman Kardon AVR 130 (Channel 7 problem)
  101. HELP....Perreaux SA2 noisy phono section
  102. Bryston 7B SST (7 B SST, 7BSST) - Why is sound quality not good ?
  103. Help needed with transistor substitution
  104. Strange Waveform
  105. NAD L40 CD Problem
  106. bypassing rear gain pots on parasound halo a 23 amp
  107. Using LME49713 for preamp, large DC offset
  108. Creek 4140s2
  109. insulator fo audio ic
  110. RIAA preamp project
  111. HELP!! SA800 Pro amp not working
  112. transistor
  113. Convert stereo to mono?
  114. Troubleshooting help
  115. NAD 2100 won't go into bridged mode
  116. volume pot and input impedance issues with LME49830
  117. Kenwood KA-8006 restoration?
  118. anyone seen one of these?
  119. Akai AA-6100
  120. BF245C those who built it?
  121. Toshiba sa-400
  122. ADCOM GFA-5500 bridging ??
  123. Roksan Kandy KA1
  124. help me building this 2n3055 amplifier
  125. Absolute Polarity Question
  126. AQUARIUS AMPLIFIR
  127. Another Hafler 220
  128. Pioneer SA-608 phono stage hum
  129. Bedini 100/100 (802mod) high DC offset problem
  130. Help Identifying Zener? diodes in 1985 Accuphuse Amp
  131. ZCA amplifier question.
  132. Putting a super light phono amp inside the tonearm?
  133. Roland SRA 540
  134. First time DIY'er - Mono Amps
  135. Combined Mic + Line preamp - Single gain control?
  136. HK avr645 Display Lights of death
  137. Arcam 6 Plus Amplifier Repair
  138. Help a noob out- NAD3020 and system compatability questions :)
  139. Superphon Revelation Basic volume pots
  140. Help me understand mono BTL power math?
  141. Delco DTS 410 output transistors
  142. Arcam A65+ high DC offset and thump sound, help please.
  143. Optonica SM-4646 Recap?
  144. DIY power amp 250 - 300W @ 4Ohm
  145. Please comment on my OPS design
  146. Question about recapping amp
  147. How can I substitute a STK00xx darlington power pack with a transistor based circuit?
  148. Transformer influence
  149. Little Angel Power Amplifier
  150. Need suggestion of power supply filters
  151. Need Mitsubishi DA-R10 manual
  152. How do I adapt vintage amp for new spades
  153. Nad 3120 Recap results
  154. Looking for a design recommendation for an AB amp.
  155. Inexpensive Chinese audio boards
  156. NAD C315BEE Buzz, replaced capacitors, now new kind of buzz
  157. The filtering of the preamp with the PGA2310 project
  158. Is there any reason why people don't use darlington power transistor?
  159. Rega brio bias setting
  160. Op-Amp Phono Pre
  161. 62-0-62 volt power transformer: options?
  162. MONO Fun
  163. Choosing a power transformer
  164. Another Sony DE375 Broken (2SD1513 no voltage)
  165. Cary solid state amp repair
  166. easy SAP17N
  167. Does anyone have a pair of 2SD555's they'd part with?
  168. Cyrus 2 output transistors
  169. A little nudge in the right direction.
  170. Bias effect dB?
  171. How to clean up the inside of amp?
  172. Help me choose a vintage amp to restore
  173. V8 input board recap - re voltage regulator
  174. Adcom GFA-2 recap....should I replace rectifiers/snubber caps???
  175. Question on parts for a new build
  176. Looking for Battery Wiring for Diagram for NEW class A DCA33
  177. Mosfet Short, capacitor problem?
  178. taxi radio interferance on Leak 2000 tuneramp
  179. Need a preamp for a beautiful Sony TA-3200F
  180. wilson sziklai pair MODULE
  181. Parasound HCA 2200 mark ii problem
  182. High End 120W Mosfet IC driven amp
  183. Terminating AC Power Cord's Ground Via Resistor, Thoughts?
  184. AD846AN (AD-846 AN) as Front End in Power Amplifiers
  185. Harman Kardon PM665 Vxi Operating Mode
  186. Citation 16 Series A Capacitor Replacement.
  187. Help on deciding the topology of the design.
  188. Surface mount diode identification required
  189. Bss fds388
  190. Increasing Power Output of Amplifier
  191. After defect, one channel oscillates
  192. Classic NAIM diy?
  193. Subwoofer sound degrading - electronics fix?
  194. REVISION OF Very Best Amplifier ... 2015
  195. Linn Intek emitter resistors
  196. Did I go overboard on this power supply?
  197. Question on Thermal Track BJT in parallel application.
  198. Sugden a88/a48 pot values
  199. NAKAMICHI IA-2 AMP HELP
  200. 'Sandwich' power transformers between 2 heatsinks
  201. Transformer voltage info needed
  202. Setting bias on Zen headphone amp
  203. gold aero db45 phono stage output DC offset
  204. IRF530 Linear POwer Amplifier AN948 Recommended IR Circuit
  205. Op-Amp Buffer into 1073?
  206. My Onkyo-LJM L20 Project.
  207. Help me debug this
  208. Passive ducted heat sink?
  209. Amplifier Clicking Problem
  210. NAD 7020 noise on left power amp
  211. citation 12 questions
  212. pionner QA-800A
  213. pionner QA-800A
  214. Compare the sound between BJT and MOSFET OPS
  215. Schematics for Boston MCS130 Subwoofer Amp
  216. Help with NAD3020 DC Offset Problem - Please!
  217. DC servo introduces more odd harmonics
  218. Refurbished Krell KSA 100
  219. How to tell the positive and nagative pole?
  220. Buzz in a vintage amp
  221. need soundcraftsmen pcr800 schematics
  222. MJ15022/24 vs. MJ21193/94
  223. Help repairing Phase Linear Series II Model 200
  224. Is a solar (or room light) powered tweeter amp possible?
  225. Soft Start / Missing Cycle Detector / On-Off Mute Controller
  226. Hafler DH300 - Interesting Bridged DH200
  227. I've written a complete guide to building your own Leach Amp 200Wx2 in 2U rack mount
  228. AB international precedent 1450 rail voltage?
  229. What Is The Minimum Current For TO-126 Driver?
  230. Lazy Cat's Output Stage
  231. JVC A-x40 service manual
  232. Caver PM Repair
  233. Audio Sensing 2.1 Amp / Board / Kit?
  234. Any way to improve the mid range of a power amp?
  235. Cambridge Audio Azur 640A V2 Left Channel Over Drive.
  236. DC Offset Question
  237. How to measure mismatched channels on an amplifier?
  238. Bridging tube amp combo with Solid state power amp
  239. Suggestion for buiding a selector box to drive power amp.
  240. Crown DC-300A voltage conversion question
  241. High power Quad 405 experiment 390W into 1 Ohm
  242. Nelson Pass amp
  243. POC amplifier
  244. What Temperature Set Do You Use In Simulation?
  245. How to bias the 2sc5171 drivers into class A?
  246. Rule of thumb for wattage?
  247. +57 Amp
  248. Need a quick hand with a Pioneer SA-700
  249. Output Transistor faulty
  250. Hi! New here.

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