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  1. Distorts after about twenty minutes
  2. Faulty transistor?
  3. mjl
  4. What amp/amps boards would you like to see produced for your project?
  5. My last PA
  6. Output Relays
  7. low output capacitance buffer?
  8. Nytech service manual
  9. 400watt/800watt irfp240 irfp9240 audio amplifier
  10. Why battle with Chinese board manufacturers?
  11. Negative output impedance
  12. trying to fix RANDALL RH-100 - need help
  13. P channel jfet preamp circuit
  14. TLE-2426 as "negative" virtual ground?
  15. In need to solder!!
  16. Need help with my bi-amp system
  17. GFA-555 II Thermal
  18. eq mic
  19. Arcam delta 290 switch to Power amp mode
  20. M3/Sigma 11 Build check
  21. WHAT is this amps trafo ?
  22. Chinse DX amp compensation capacitor
  23. Ab International 322t
  24. Burns Orbit Three Guitar Amp info required
  25. Second loss for National and Semi Industry
  26. Tobey & Dinsdale amp in Wireless World
  27. Delay Amp power up using a relay.
  28. Carver PM1200 rail voltage and idle bias settings
  29. Heathkit AA 1640 mods
  30. NHT Subtwo (Amplifier)
  31. new vs old harman receivers
  32. finished AV400 help with problem
  33. Active crossover built into amp
  34. build NEW AV800 / AV1000 MOSFET AMP IRFP240 IRFP9240
  35. BC550-560 Symmetric with LATERAL Output - Hiraga style
  36. RD15ESB ZENER DIODE
  37. Help with several issues please: rewiring, blown B&K AVR507 updated to version 3, etc
  38. Proton D1200 Replacement Transistors
  39. Tecnics SU-Z1 to refurbish
  40. THE PHILIPS 22AH708
  41. Separate IPS and OPS boards?
  42. current source for class a se amp
  43. Sanken 2sa1216 and 2sc2922
  44. Marantz SR-18 Doesn't Turn On: Worth Repairing?
  45. Sumo Andromeda very early series schematics
  46. ONKYO TXNR509 DAC signal question
  47. Marantz PM7003 + Passive Pre Amp (stepped) questions
  48. 6N136 model
  49. Headphone amplifier
  50. Pls help identify resistors on pcb of a Mark Levinson 23.5
  51. Will that amp be as good as the author pretends?
  52. Reparing Sugden A 28
  53. Yet another amp - simple inverted with 10x gain, mosfet output stage
  54. Dynaco Stereo 400
  55. Will Tillman Preamp improve acoustic guitar sound?
  56. LEAD ACID BATTERY POWERED JLH CLASS A
  57. Monoblock amp hot at idle compared to its brother
  58. High power AMP design
  59. How can one tell if it is a lateral MOSFET
  60. Active 3 way system
  61. Correct bias setting for mosfet amp w/out scope?
  62. Suggest me an amp design!
  63. Pioneer SX-980 Help!
  64. Layout critique
  65. Pioneer A300R phono stage
  66. All electric diagram for Sunden A28
  67. setting bias mosfet amp
  68. setting bias mosfet amp
  69. pioneer A400 speaker pop
  70. Bruel & Kjaer 2610 service manual needed
  71. Amplifier cooling, Dx variable speed fan blower
  72. Is it audio heresy to put some new guts in to a vintage Sony 3140f 35 watt power amp?
  73. Noob here. GFA565 running hot.
  74. Sumo Andromeda II question about shorting connectors
  75. accurate sound for deep scene
  76. pioneer A400
  77. the Perfect preamplifier jfet
  78. Electrocompaniet AW 180M adjustments
  79. where is the input in this thing?!
  80. yammy ax 470 (pt 2)
  81. Modding Vincent amplifier - tips needed
  82. What can I replace the 2SK370 and 2SJ108 with?
  83. JLH Headphone Class A
  84. How do I test a TDA2050 to see if it's good?
  85. nad 3020 volume control
  86. radioam232 located on youtube
  87. Carver M-500 blows capacitor
  88. Power MOSFET at Audio?
  89. Need Schematic for .5 to 1W Guitar Amp
  90. R2R Attenuator for Volume Control without Transition Contacts in the Signal Path
  91. SOLID STATE AMP KIT FOR BEGINNGERS? NEED SOME DIRECTION
  92. Large signal distortion in pre/VA stage
  93. Old design
  94. Determing current dump from output transistors
  95. Why do solid state guitar amps need so many op amps?
  96. darligton Leslie
  97. about the Denon PMA-700 amp
  98. Ebay KSA50 needs 2 voltages?
  99. Possible Threshold S/300 problem
  100. Help Needed - Sony SS120A chip amplifier
  101. Yamaha A-6a schematic needed
  102. REPAIRING an Electro voice 1144
  103. PCB STK4048XI, PS PCB..
  104. Has anybody Burmester or AVM schematics?
  105. Studio Project C1 preamp MOD
  106. MF A100 fans problem
  107. LT1166 bias IC
  108. yahama A-S1000 advice
  109. Crown XS700 Bias question - (schematics posted)
  110. zener base drive clamp
  111. Heatsink Question
  112. Advice on burned transistor replacement?
  113. Help on Source Follower output
  114. Need Schematic for PPI A1200.2
  115. JVC AX-Z911 right ch. broken, caps gone, voltage?
  116. My new design of differential buffer I/O board for fully balanced design
  117. Need a simple audio preamp schematic
  118. Help With ppi A1200.2
  119. LM1972 Audio Attenuator and XLR Balanced to Unbalanced
  120. Pioneer A400 - A familiar Problem?
  121. BGW 750 F/G manual or schematic
  122. Fake components?
  123. Want to convert Hafler to 220v
  124. Crown PS-400 power amp is oscillating on channel 2
  125. Marantz Model 250 Power Amp repair
  126. Crown 602 XLS Power Issue
  127. Ground Plane Prototyping
  128. Model 0147 DIY Kit from 47 labs.
  129. Best method for household FM xmitter
  130. How to diagnose an old receiver?
  131. NAD 218 THX with dead channel
  132. PIONEER A733
  133. How do you test your amp for stability / oscillation ?
  134. Selector switch for old B&K Pro5
  135. Need Software for Yamaha RX-Z9 Receiver
  136. Naim Nait circuit
  137. Advantage of multiple lower value capacitors in power supply
  138. SWTPC Tigersaurus 250W Amp Simulation
  139. A new bie's try on making discrete opamp
  140. Audiolab 8200CDQ
  141. Randall RH100 G2 preamp
  142. How to fix idle noise on 50 year old Bang and Olufsen
  143. ESP Project 03 Bias/Oscillation Problems
  144. 1/f noise in transistors
  145. Power supply for LM3915/LM3916 vu meter
  146. Distorted ouputs, need more assistance please
  147. Marshall 8100 Power Amp help
  148. Douglas Self adds more Wireless World articles
  149. MJL/W3281/1302 fakery ?
  150. testing amps with square waves
  151. Adding caps to commercial amp's switching power supply
  152. Is 15-0-15 supply A/C?
  153. output voltage/current
  154. Tekko Audio Labs releases its first complete amp module
  155. Help please with OpAmp circuit - Guitar Signal Phase Reverse
  156. Improvement for Bass
  157. Pete Millet 8903 s/w on Windows 7....
  158. opamp output - how to make its impedance higher?
  159. Stk 439 HMV Japan, Popping powerswitch
  160. DIY-GENE A700 Mark Levinson Clone
  161. Square Law Class A Amps
  162. Pre or Power amp volume?
  163. Driving 25V speakers
  164. Interesting Siemens monoblocks I happened upon...
  165. sap17
  166. Threshold S-150 II
  167. small solid state amplifier for high fidelity receiver needed
  168. SE Preamp With Moderate Current NFB
  169. Best Amplifier Sound
  170. Behringer A500 - Buzz at Full Volume
  171. Denon POA 2400 A Amplifier
  172. Help for Mac MC502
  173. Q-bass 100
  174. Arcam fmj a22 it go bang
  175. Hafler 9270 Troubleshooting Help
  176. ♫♪ My little cheap Circlophone© ♫♪
  177. Threshold Stasis 2 imput impedence
  178. QSC USA 900
  179. Cyrus 2 hum
  180. looking for Randall RH 100 G2 schematics
  181. MA-6100 Capacitor Questions
  182. Multiple thermal compensation transistors ?
  183. Doxa 70B , 70SE, signature!
  184. Replacements for workhorse transistors
  185. Using a Class D Amp at Home?
  186. Need Help Biasing a Trace Elliot AH250 MkIV
  187. need good heatshinks for high power amp ......
  188. Fixing an Adcom GFA-5500: -20db bass attenenuation on both channels
  189. BTL TDA7294
  190. amplifier using AN7161
  191. Marshall avt 150. TDA 7293 issues
  192. Input Cap Rotel RB981
  193. Paraprob hca-2003
  194. reed relay question
  195. Allison(ish) driver/bias stage for Mosfets
  196. Intermodulation Distortion Values below THD Values by SS Amps - is this possible ??
  197. NAD 3130
  198. Hafler DH220 quiescent current
  199. speaker relay type sony TA-N77ES
  200. Luxman rx-101 blown channel repair
  201. Pioneer sx 727 resto? Help!
  202. soundbarrier
  203. 2n3055 amp claims 200 to 220 watt
  204. What happened to the "digital amp revolution"?
  205. Harmon Kardon PM 665vxi
  206. Pushing SINGLE Pair of MJL4281A/4302A to the max limits at lower impedance
  207. Anyone built this power Diamond Buffer amp ?
  208. BGW 7000 Replacement Transistors
  209. yamaha ax 470 problem
  210. P3A vs LM4702 AMP's
  211. My new leach amp
  212. Working on an Allison biased class A ~25W
  213. Looking for a tech
  214. Peavey's DDT and DECA - looking for Informations
  215. Integrated No NFB Son of Follower
  216. Why a so high value for input cap?
  217. Adcom GFP 555 II Pre Amp Switch Problem
  218. stereo NPN amp
  219. DC blocker diode/cap orientation
  220. InterM M700/1000 Amp Board Needed
  221. Vbe problems ... I'm going nuts !!
  222. Which resistor do I measure to set bias?
  223. Input Decoupling Cap
  224. Ahuja Amplifier
  225. Velleman VPA 2200 MB
  226. DIY Amp for BAMTM
  227. Dukane 1A921B w/ OPT ... what to do with 'em?
  228. Help with diagnosis of Technics SU-V90D problem
  229. Power amp Problem
  230. Help with Onkyo M-501
  231. Capacitor gives shock during charging
  232. Carver TFM-55X Mag field PS regulator problem
  233. HELP - SONY XO-3 No Tuner output
  234. Balanced input buffer
  235. What was so special about the Krells with low impedance speakers
  236. Commercial Audio Brands: N-Ch/NPN only output devices in a push pull power follower
  237. Help designing double differential symmetrical amp
  238. Sony TA-F35 help
  239. Cello Encore pre amp voltage conversion
  240. Simple SS mono amp?
  241. good output transistors for amplifiers ?
  242. Powerunit capacitors for HPA nxV200/201
  243. Any Spice models for Lateral Fets ALF20N20 or ALF20P20??
  244. marantz model 250 power amp. Should I fix or make a gainclone out of it
  245. IMG STA-160 - trouble again...
  246. SPICE SIMULATION
  247. SC480 Amp Questions
  248. a volume control ....
  249. Mounting an amp vertically
  250. Looking for Behringer PMH800S schematic

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