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  1. TL082 Preamp Instability
  2. HELP! line-level crossover design for solar-powered biamped soundsystem
  3. How to integrate Baffle Step Compensation into existing discrete linestage?
  4. Fundamental Oscilliscope Usage
  5. Balanced buffers - analogue volume control
  6. A second order active filter with single supply - Zin ?
  7. Tamradio 600:600 Transformers
  8. Input bias current and impedance of an op amp?
  9. Otari MX7000
  10. Vca's
  11. Optimum value for R(s) in a JFET follower?
  12. Active preamp gain
  13. complementary jfet input trimmer
  14. Looking for a PGA2320 PCB
  15. Looking for discrete high performance linestage design with 12v rails
  16. Which power transformer for low hum?
  17. 2SA1015 SRPP follower bridge mode
  18. H/K 595 subwoofer connect to Aiwa reciever.
  19. Aragon 47k Schematics?
  20. Best OP-amp for EQ circuit?
  21. Broskie
  22. Active Stereo Preamp , OPAMP VS TRANSISTORS , which on would you prefer ?
  23. XLR jacks
  24. Which Aikido?
  25. Electret Mic Power Circuit for PC Input
  26. Soundcraft B100 (TL072...again)
  27. XLR, RCA and CMRR - a few questions
  28. Help Designing Preamp Schematic
  29. Here's a weird enquiry
  30. C1583 & A798
  31. Volume Control with symmetrical out and in
  32. Building a Tee attenuator
  33. Noise in balanced outputs - Parasound
  34. Need some advice on a level booster...
  35. INA134-DRV134 balanced preamp
  36. how to add protection circuits (swith circuit)
  37. resistor(s) in ground paths to reduce hum, etc.
  38. My (quick and dirty) take at a PLLXO for OB, help is welcome
  39. Lundahl LL1530 - audio application?
  40. SP-6 Light with ECC801S
  41. Active crossover help
  42. Line Level Preamp, Using JFETs, in a can.
  43. Replacement push buttons for hafler?
  44. My fuzz pedal project is behaving badly
  45. My fuzz pedal project is behaving badly
  46. Op-amp Upgrade
  47. Output transformers for Line-level signal.
  48. PGA2310 control module
  49. Shields in internally balanced equipment
  50. First effort: MM/MC phono preamp with DC servo
  51. How to figure gyrator treble boost gain
  52. AirTight ATC-2 Preamp Pictures
  53. Need help with the NE5543N opamp
  54. help building a crossover/lowpass filter
  55. Poles and throws?
  56. DC buildup in Linkwitz Transform
  57. BOZ (bride of Zen) advices asked - things to do/avoid
  58. DIY STEREO MIC-PREAMP for DSLR-Video
  59. Adjustable Linkwitz-Riley filter: Help needed with SPICE
  60. Variable active high pass filter .
  61. What advantage to use OP to summing signal ?
  62. Transformer malfunction??'
  63. Fader Penny Giles and Active Level control
  64. Is this filtering really needed ?
  65. Need help with ebay PHONO TURNTABLE PREAMP PREAMPLIFIER PCB DIY KIT
  66. Balanced vs Unbalanced -Basics
  67. Humorous mistake in Douglas Self Active Crossovers book
  68. preamp and tone control circuit with pcb
  69. Noisy 'clickless' analogue switches
  70. Preamp needed, or am I missing something?
  71. Volume Control Clicks
  72. Audio Research SP-10 Clone HELP please
  73. Selector switch
  74. repairing/recycling RCA cable
  75. Klimo Merlin rebuilding
  76. Analog Signal to fire Contact Closure
  77. Cello Palette Style EQ Design (was High End Tone Control)...
  78. LDR attenuators - Better balance with DC bias
  79. Acoustic Guitar Pre/Comp/EQ/Blender/DI
  80. Where is the point of diminishing returns with caps in passive crossovers?
  81. Preamp output protection
  82. Lexicon Master Re-boot?
  83. Grounding in balanced passive pre?
  84. Preamp knob where to buy...
  85. Transcendent Sound GG help
  86. Signal level
  87. Advice on a simple preamp
  88. Balanced and Unbalanced signals in a Control Room Monitor
  89. Audio Delay Circuit
  90. Shielded Umbilical Question
  91. TEAC 80-8 head spec
  92. DC on Lightspeed-attenuator possible
  93. DC on Lightspeed-attenuator possible
  94. Light Dependant Resistor Current Control
  95. Broskie Unbalancer - manual query?
  96. Op-amp Guilt feel.
  97. simple active crossover
  98. Attenuation Versus Gain
  99. fake signal to bypassed inserts
  100. How to Mult (aka split) a line signal into 8 identical buffered outputs... properly!
  101. Mic preamp
  102. Silicon Chip Pre-amp not switching inputs
  103. Making a very simple volume control
  104. consumer --- > commercial
  105. Need advice isolating subwoofer channel from main L/R channels.
  106. What type of diode should i use in this circuit?
  107. Plz advise on balanced pot wiring
  108. Protecting my amp during circuit tests
  109. Pre amp output shorted?
  110. 4 channel mixer circuit?
  111. Wiring a Pot
  112. How to make a phase inverter?
  113. line level volume control
  114. Equalizer
  115. RL passive high pass line level filter
  116. Denon D-75 & diy plinth
  117. Many questions on mhennessy's Hi-Fi preamp (mainly about power-fail detect circuit)
  118. LF03 discrete opamp
  119. passive line level filter question
  120. DIC Integrated amplifier - seventies
  121. Sound Quality on Unity gain opamp
  122. PGA2310 Line Preamplifier + Free Software
  123. Remotely Controlled Motorized Volume Pot.
  124. Preamp Kit - New DIY'er
  125. Pre-Amp Mods - Suggestions
  126. why not use quarter inch stereo jacks for connecting hifi
  127. BSG Technologies QOL "Signal Completion Stage"
  128. What is the best use of 12AT7?
  129. Popping noise on input selector switch
  130. 3 TRS in, 3 TRS out, 1 knob volume.
  131. Fostex Volume Control "PC1EX" - Schematic wanted
  132. Schematic Focusrite Octopre??
  133. multichannel volume control
  134. JC-80 eBay PCBs & Power Train
  135. Parametric EQ values?
  136. Recommend a first diy phono pre-amp?
  137. Phono problems one side working
  138. TL071 question
  139. Forte F44 preamp, DC Voltage leak
  140. To build a high pass RL line level filter
  141. If You Don't Have a SIT, Fake It...
  142. 3 core audio cable
  143. Another Remote Alps
  144. matching sine wave wave file / expert opinion
  145. Can a delay circuit be beneficial between bass and mids?
  146. Exponential programmable resistor
  147. Balanced interconnect with 2 x 75 ohm coax cables?
  148. Volume Control Kit/Controller to work with WMCE-remotes
  149. cs3318 and arduino
  150. Anyone knows if Khozmo guy is still around
  151. What kind of connector is this and how can it be fixed?
  152. "8 ohm 3 way x-over" mod for 4ohm woofer ?
  153. 6SN7 Tube pre
  154. 2 channel to 7.1
  155. Pass Aleph L1.2
  156. Chinese mini VU Meters
  157. Three opamp 24db/oct crossover?
  158. Parametric EQ for subwoofer?
  159. Kit or Behringer ?
  160. Redesigning a cheap obsolete 8-track pre-amp.
  161. Help with circuit for preamp with eq and balanced output powered by phantom power
  162. Inexspensive volume control chips
  163. Linkwitz ASP Custom Build
  164. Shielded cable or faraday cage or both?
  165. Upgraded opamp in preamp and now there is a hum/buzz
  166. GFP-555
  167. mic tube preamp as line stage
  168. AV / HT Preamp
  169. audio matrix
  170. mic pre application buffer op-amp question
  171. Does this preamp look any good?
  172. Replacement for LM833 in active crossover
  173. Not another project yet
  174. RJM Audio B-Board Project
  175. Cause of weak Preamp channel
  176. Schematic Boston PV700
  177. discrete op amp
  178. Resistor between line out and GND: what for?
  179. Recap Rotel RC1070
  180. Speaker selector / level equalizer?
  181. Voltage Readings Following Soldering Error
  182. Selector switch - replacement - shielded wire?
  183. Frequency Response of WW Pots?
  184. Passive pre, adding buffers
  185. AI Modulus preamp...heat damage?
  186. auto level control for input
  187. Which opamp in this preamp circuit?
  188. Audio Pre Amplifier
  189. Mic Preamp output protection
  190. Krell KAV-250cd Output stage drawn
  191. Stereo to Mono Circuit: need help with capacitor
  192. AD797 Preamp based on stolen trademark
  193. Solderless RCA plugs for DIY interconnects
  194. options for source selector/volume control <100/$150
  195. Pre Amp with pre-out for Arjen Helder Ta2020
  196. Cables: different YES - better ???
  197. Arcam AV9 processor
  198. Looking for unbalanced to balanced transformer
  199. Frequency cut out switches. Graphic EQ.
  200. Stepped attenuator ?
  201. active tri line splitter using BJT transistor
  202. Neotech UPOCC Silver vs HGA Silver
  203. All In One Mixer/PC Project
  204. Sweep Eq
  205. Methods of Handling Various Devices and Grounding - Ground Loop Issues
  206. In-depth analysis of effect of high-quality interconnects
  207. Universal FET buffer / preamplifier
  208. Simple Pre-Amp with Variable High-Pass - This right?
  209. How to derermine the optimum bias resistor value ?
  210. output inductor?
  211. RGB LEDs amp audio level
  212. installing an analog audio output jack on a television?
  213. Help needed for Krell krs-1a preamp
  214. power conditioner project anyone ??
  215. DQ-LP1 Help
  216. upgrading active xover with LM4562
  217. 48VDC Phantom Power switch - seeking advice
  218. Rotel RTC-970 - Remote Controller RR970
  219. bi-amp'd, with passive mid/high ??
  220. Interesting Interconnect Cables
  221. Hum in RC cable
  222. Help for upgrading Pioneer receiver
  223. My attempt at a Monitor Volume Control with headphone outs
  224. Pumpkin Problems
  225. Rod Elliot - Audio Mixing Console (HELP!!)
  226. looking for a 3 way active crossover for diy powered speaker
  227. RFI woes
  228. need info on preamps for use on baf1
  229. Mixer Channel for observation
  230. Help With Existing Crossover Points
  231. stepped aattenuator - stop pops
  232. Adcom GFP-565 Input Selector
  233. Subsonic Filters & Film Caps
  234. DIY build of the Pioneer C-21 preamplifier
  235. Preamplifier with integrated circuits
  236. mixer circuits (looking for simple, but very high quality)...
  237. Subwoofer circuit: Going from speaker level to line level
  238. Adding Phantom Power to old board?
  239. Designing a versatile pre with balanced and unbalanced in/out
  240. Help Pls - Coupling Capacitor
  241. How to pick a good audio transistor?
  242. Volume control question
  243. Loudness stage
  244. Electret microphone Pre-amp
  245. Gold pin tube : does it really matters ?
  246. Mic preamp and high/low impedance technical question
  247. Studiomaster 16 x 4 Console
  248. Portable EQ? - Battery Power & SMALL
  249. DIY Tube Equalizer
  250. Using INA217 for Microphone Pre-amp

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