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  1. receiver as pre-amp?
  2. "The Black Box" instrumentation preamplifier
  3. Amp output low on one channel
  4. Exploration of Class A build on a budget
  5. Yamaha RX-730 display
  6. KRELL KBL need HELP !!
  7. Need help with old Sony Sub and Polk Monitor 40s...
  8. 2SC2229 and 2SA733 replacment/substitute
  9. Tech assist - TFM-15 right channel clipping
  10. Realistic STA 960
  11. OT for Hybrid Headphone Amp question.
  12. Seeking input on my amplifier design
  13. Collector impedance
  14. Optimal Vbe Multiplier Position in EF stage
  15. Kenwood KR7400 Dial Pointer
  16. are both these bridge recitfier ground loop breakers the same?
  17. Marantz 2325 Erratic dc offset
  18. Original Cambridge Audio A1 drivers
  19. Intermittent problem with Carver TFM-35, need help
  20. Question for Mr Curl re A21.
  21. Fully complementary AD797?
  22. Bryston 3BIII SPICE Simulation - Current Sharing and Output Stage
  23. Cyrus-III restauration project
  24. Preamp with 2SD667/2SB647
  25. Technics SA-300, blown output
  26. Build NAC 42 single end preamp
  27. Conrad Johnsen mf2500 problem
  28. What's the problem with DC offset?
  29. PSL Vp 2030 Amplifier, help needed
  30. Jean Hiraga Super Class A 30w Build.
  31. Old school V-FET amplifiers
  32. weird distortion
  33. Classe Fifteen transistors
  34. Technics SU-8080 power supply capacitors
  35. Polarity setup
  36. CFP Amplifier - Help Please!
  37. Transistor replacements Marantz/Denon
  38. dB Technologies FL15
  39. Jands sr3000 amplifier restoration
  40. DIYaudiostore softstart/speaker protection boards
  41. Proline 3000 / Apex 2000 original double side PCB's for sale
  42. Silent Sansui G5700. Possible fix/ uppgrade?
  43. Folded cascode as A1381 C3503 discontinued
  44. Amp problem with Yamaha NS200 speakers
  45. Advise needed. What is this
  46. Dual DC KSA100 ebay improvement help
  47. Which company is this?
  48. JVC AX 9 amplifier
  49. Rotel RB-985 MKII 5 channel home cinema amp -- LOUD popping high pitched noises
  50. Adcom GFA-555 II with a bad channel
  51. Please help improve Self's Blameless 50W amp
  52. Preventing Hum/Noise in Amplifiers
  53. Help with amp
  54. Sony HP-511a
  55. Difference b/w transistor 2N3055HV-3 and 2N3055HV-4
  56. TPA3116D2 2.1 passive sub-woofer?
  57. My first copy & paste
  58. Circlotron Amp - Output Stage Regulation
  59. fuse blows after one short to chasis
  60. Thermal compensation for super complementary output stage?
  61. Using mu-metal foils or sheets to shield DC-DC supplies, or linear PS swap? supplies
  62. McIntosh MA 6100 output stage temperature
  63. DC offset in Fisher CA-78
  64. Please help
  65. The better amp to power compression drivers?
  66. Dynaco SCA-80Q cap issue
  67. denon pma 520 will it work with these ?
  68. 2SK209 , 2SK3320 TOSHIBA Field Effect Transistor Audio Frequency Low Noise Amplifier
  69. 2SJ161/2SK1057
  70. where have I seen this?
  71. extreme hi-end hybrid / Audiodesignguide
  72. A question on DC p.s. voltage
  73. McIntosh C32 preamp restoration
  74. What Class A amplifier, 10-20 watts for fullrange speakers.
  75. Low threshold/ logic level MOSFET Complementary Pair
  76. ATI Amplifier Schematic
  77. metal oxide or metal film?
  78. Help fixing NAD C350 - weak low frequency (no bass)
  79. The-simpliest and lowest distortion discrete op-amp
  80. 30 pairs MOSFET OPS things to consider
  81. class H amplifier Step transistor dissipation ratio
  82. Luxman r115 phono plays quiet then all of a sudden loud and clear
  83. Solid state with no NFb
  84. Tech question, passive/power amplifiers gain sensitivity
  85. Looking For A Good Low Power Low Distortion IC Amplifier .5W to 1.5W ?
  86. ROTEL RA-820AX peculiar fault
  87. The-best EF output stage
  88. Vbe-monitoring amplifier concept
  89. AKAI AA-1030 - 2SD428 / 2SB558
  90. Marantz 1122DC no pre amp output, power amp in okish
  91. Transformer for a VAS stage ?
  92. Arcam Delta 290P keeps blowing fuse
  93. JRC released the brand-new MUSES03 OPamp!
  94. Best 1-3W Amp for sensitive speakers?
  95. Modifing a Crestron 16x60 amp to make it bridgeable
  96. 5200 Watt High Power MOSFET Amplifier
  97. Bedini amp repair advice
  98. I got the harmonic pattern I wanted
  99. Switching between bootstrap and CCS with a trimmer
  100. Unique Output Stage
  101. Bose 901 EQ Re-Build
  102. Hitachi HCA 7500 mkII
  103. Current-Source-Driven-power-transistors-and-mitigating-cross-conduction-distortion
  104. Advice for Citation 16 Rebuild
  105. NAD 310 right channel gone
  106. Pioneer SA-508 Very slow start
  107. Automatic Level Control (ALC) drive circuit in Marconi TF2015 generator
  108. Problem with my Yamaha P2200 Amplifier
  109. Class AB amp using TIP102. Seeking Critique
  110. 5W, 6 transistors
  111. Assist with Cambridge P50 Mains Changeover
  112. DIY Class AB SS Amplifiers Top List
  113. Vintage amps with rca type speaker plug in polarity
  114. protection mode takes days to clear?
  115. Cambridge Audio mystery amp, the P70X
  116. Cambridge Audio mystery amp, the P70X
  117. Mark Levinson 23.5 Power amp
  118. LTP works better with more current in the right collector
  119. Created another crummy crude simple audio amplifier
  120. Mark Levinson ML-9 protection circuit problem
  121. Single transistor Op-Amp circuit
  122. Help troubleshooting Sony SQR-8750
  123. Can I modify my amp for more current?
  124. Rotel RB 991 only one channel working.
  125. Is my amp overheating?
  126. Quad 405 clone problem
  127. Advice on upgrading a Denon PMA-1080R
  128. My first Adcom amp... (gushing;)
  129. Thermostat replacement on NAD 2150?
  130. Class H Amps Output 5000W @4ohms
  131. Question about class B output stages
  132. Tweeter and Midrange Class A Amps for a 4 way active system
  133. seen this before ?
  134. Rega Brio redux?
  135. Marantz PM6100SA
  136. DynaHi on modern parts
  137. Adcom GFA-555 mismatched input PCB
  138. List of capacitators Mark Levinson 23.5
  139. Onix OA21 (E) Burnt out resistors
  140. Technics SA-GX303 relay clicking
  141. Just another "recapping headache" thread
  142. Amp blows mains fuses, transformer is fine.
  143. Service Manual For Nakamichi Amplifier 2 (0Q06142A)
  144. Audiolab 8000M gone dead
  145. Galactron Italian Hi End Amplifier circa 1975 Tear-Down
  146. SYMASYM TO3 x 3 Canadian Bacon
  147. Darlington Amp
  148. 6 x 200W amp build thread
  149. Trying to repair a Luxman LV-103u
  150. p channel complimentary to irfp044
  151. Sony amps - "G" version
  152. What does this circuit do?
  153. Adcom GFA5500 idle power consumption
  154. Silencing the noise floor of an older amplifier
  155. Meridian 103 clone
  156. current limiting diodes in old Sony's amps
  157. Rotel -1052
  158. Sony TA-4650 VFET adventures
  159. AKAI AA-920 // Stereo lamp problem
  160. Classe CA-300
  161. Simple class AB quiscent current problem
  162. Extension speaker outputs
  163. Honey Badger bias investigations
  164. Can you identify this part ?
  165. PGA 2311
  166. Rebuilding power amp. Questions about resistor types. Fail safe and others
  167. Just a question about why higher distortion.
  168. MC2100 PAIR - "SLIGHT" hum - Solution?
  169. Adcom GFA 5500 continues to play after powering down
  170. Current vs. Voltage Control
  171. Amp Design consideration for CE mark?
  172. B&K M200 fuse
  173. NAD C370 partial power up
  174. Technics SU-G91 blown resistors
  175. Heatsink as implicit sensor for temperature monitoring
  176. Capacitors for an Old Bryston 3B Amp
  177. Custom case for old HiFi amp
  178. Discrete TAA761A opamp - 2N3055 quasi compl. amplifier - 50W@4R
  179. transistors biasing for YBA intégré Delta DT
  180. arcam avr600 power board
  181. Schematic question
  182. Turntable retrofit
  183. Neve 31102 low output
  184. B & W sound bar blowing external fuse.
  185. dbx mpa-150
  186. old Pioneer will only play music in direct mode
  187. Super Leach amp simulation woes
  188. Need some help :D
  189. Sony TA-AV480 Channel fade fault tracing
  190. Need something to beat LM3875
  191. 200W Class A amp with high efficency
  192. Sony ta-f411r bias current adjustment
  193. Goldmund Wiki and build 2017
  194. No/little rear sound from Sony 5.1 - Help!!
  195. NAD C370 not protection issue
  196. Symasym5 (Transformer specifications)
  197. Bash Amp Bias Adjustment
  198. Another amplifier protection
  199. What is the source of this noise?
  200. Fast, Complementary BJT for low volts, recommendation?
  201. Will this amplifier be able to replace my home audio stereo player?
  202. Replace DC/DC Converter in Car Amp for use in Home
  203. Denon avr-x1200w thermal protection on startup?
  204. Rotel RA930AX
  205. Help required, amplifier background hiss
  206. Amplifier level adjustment
  207. PG xenon left negatives are out
  208. Bose 1800 IV manual
  209. pioneer vsa-eo6 (irf540/ 9540)
  210. Noob Seeking Help on Building Amplifier
  211. Another Op amp based amp
  212. Cree for Motorola MOSFET??
  213. TGM11 - inspired by Steven Dunlap 'KRILL'
  214. Junks or unsung heroes?
  215. Yamaha RX-V563 newbie question
  216. Sony TA-1130 pre-amp noise! Fet related?
  217. Help!
  218. Newb post - NAD 3020 in need of repair
  219. KRELL KSA-50 SPICE Simulation
  220. Electrocompaniet Preampliwire IIA
  221. Which type of capacitor should I use?
  222. Vintage Sony amp acquired and working...what's next?
  223. MF Preamp 8 (A1000) Mosfet Mods?
  224. Computer signal > potentiometer and 2 car amplifiers.
  225. Nakamichi 630 Tone control-HELP
  226. Having a slight issue with my class AB output stage
  227. Crown DC300AII Resurrection
  228. Mcintosh c27 preamp issue
  229. Help crown202 into beyma 12ga50 mono ?
  230. Help needed upgrading op-amps Denon POA-4400
  231. Leach amp - need help finding source of fault
  232. Recapping Dynaco ST400
  233. Best sound 12v Audio ic !?
  234. Adcom GFA-7500 Amp Module Removal
  235. full wave rectifier for jlh?
  236. balance control for class a amp.
  237. Help - Quad 306 Right Channel Low Level Buzz
  238. yamaha amp no powe switching on then off
  239. Will adding HPF at line level help with the clipping or increase it?
  240. Discrete JFET "passive" R2R attenuator
  241. Luxman r115 remote. Transmits signal but receiver does not react
  242. is my amp dead
  243. CAT A-803 getting hot
  244. My amp revisited
  245. Humming sound coming out of home stereo system instead of music what is causing this
  246. Hissing choke, what to do?
  247. Watt ratings on amps. High current vs low current
  248. What or why is the "A/C" connection on this power amp?
  249. sony ta-n9 biasing
  250. Sony str-da2800es repair question

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