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  1. compact stackable relay attenuator - something new
  2. DIY Crossover/Filter: Power Handling
  3. Getting to know the DOODs ...
  4. LED battery indicator
  5. LME49713
  6. Tube preamp kit from ebay - worth my time?
  7. small pre-amp control board design help, I will pay :-)
  8. Value of Stepped Attenuator for Passive Amp.
  9. Differential Line Driver - Impedance Questions
  10. opa 2889 buffer circuit
  11. Help needed with diy outpout switcher relay based
  12. How to make a volume control 50cm from pre-amp?
  13. MAT02 transistors on eBay, are they genuine?
  14. Newb interested in DIY preamp
  15. Help hooking up a car VU meter unit to a home AV reciever
  16. Modular Preamplifier with IC Class A (SAM Electronic Circuits)
  17. Discrete opamp vs regular op amps
  18. Bob Cordell's VinylTrak
  19. NE5532 Tone Control
  20. Muting arrangements for ESP kits: P05B and P09B
  21. Schematics for c3m based preamp
  22. TA 377A preamp
  23. preamp and active filter for class AB amp
  24. Getting a PGA2310 to be silent
  25. SPL EQ Magix studio mic preamp
  26. What's wrong with this typicial preamp circuit?
  27. How Many Line-Level Components?
  28. Need to make a simple balance control
  29. DRV134 and protection diodes
  30. Passive line level 3th order RC XO with no insertion losses?
  31. That 1646 balanced line driver PCB
  32. Help with a PLLXO
  33. LME49990 design note
  34. Cg in THAT 1512
  35. Transistor Preamp Design for ADC
  36. P1 preamplifier
  37. MUSES 72320 electronic volume
  38. DIY 1/2-inch Measurement Microphone
  39. Adcom GTP-450 - Right Channel Fades Out
  40. Passive pre for my AudioSector
  41. Capacitive crosstalk between input/output wiring
  42. Cantilevered-Cascode Buffer (CCB) aka LinuxBuffer
  43. Accelerometer to audiointerface
  44. Home Theater bypass for a tube pre amp - Help!!!
  45. Ultrabass, psychoacoutstic low bass for little speakers
  46. Discrete Opamp test circuits
  47. Inverted Polarity of tube Pre-Amps
  48. Looking For Someone To Build A Vandersteen X-2
  49. Configurable active crossover - Newbie jumping in feet first
  50. Mic Preamp Improvements? (Soundcraft 800B)
  51. electret mic preamp gain
  52. Question about active crossover
  53. Rod Elliott ESP opamp pre's question
  54. Design questions for opamp-based preamp
  55. Preamp with remote using radio not ir
  56. Squeaking Noise with 48V in DAV BG1
  57. I need mini Pre-amp board, please help
  58. IS THIS EARTH LOOP,LEAKING CAPS OR BROKEN LINK?
  59. looking to build a "classic" tube compressor
  60. lm833 single supply
  61. How to protect device from contamination through output
  62. Lundahl LL1545A hookup question...
  63. Inverting rail to rail unity buffer
  64. Subwoofer Controller Kit - Altronics Kit No K5562
  65. Replacement cap for Wima MKP10 0,047UF
  66. Programming of Oxmoor equalizers via PA-422
  67. Help in choosing a potentiometer as a "Passive preamplifier"
  68. Test IC TL074 CN
  69. Relay audio switcher
  70. Analog audio switcher
  71. BSS FDS 340 crossover
  72. Discrete Logic ABX Switch Box
  73. Audio System Controller
  74. the definitive opamp decouplig question
  75. buffer stages performance
  76. Rolling the RANE AC23
  77. Automatic Line level Attenuation Circuit
  78. Check my Opamp Preamp Please
  79. Choosing an active 3-way crossover
  80. Please suggest to me the best affordable LDR preamp kits
  81. Custom Rotary DJ mixer.
  82. Programmer-help for fleabay-remote-kit
  83. Wiring advice for internal pre amp inputs
  84. Discrete Opamp Open Design
  85. microprocessor And control
  86. Latest project.
  87. Remote control won't shut up
  88. Looking to DIY a DI box -10dBv to +4dBu
  89. pre amp suggestions, DIY or Non DIY, Im easy
  90. Musical Fidelity Pre Amp II
  91. Help with DIY passive balanced line level attenuator pads.
  92. RF-blocking???
  93. Jfet Line preamp, to cascode or not.
  94. Mic pre strange high-freq boost (what is broken here?)
  95. New pre amp coming. Change over to 115V help...
  96. XO of Mission 770mk2
  97. Equaliser design for a total n00b
  98. Trying to remote control volume on vintage HK
  99. Passive Pre Chassis and Budget Allocation
  100. Linkwitz Transforms
  101. INA217 is noisy
  102. need sound attenuator
  103. NAIM NAC 42.5 Vintage for my updated NYTECH CPA 602 - 2012
  104. Volume Control Problem
  105. Balanced Signal over 500 Metres!
  106. Single voltage powered Tone Control
  107. PGA2320 and Atmega8 Bascom Source Code Problem
  108. Tone Control Filter
  109. phase linear filters - any good?
  110. Summing (2x) opposite-phase signals with Transformers
  111. A circuit to monitor the analog audio line level
  112. diy Pre-amp question
  113. Critique please: Analogue -> Digital (TOS-LINK)
  114. Circuit Diagram wanted
  115. Xkitz 2-way Active Crossover Kit
  116. Need orientation with tweaking a TASCAM MF-P01
  117. Connecting Multiple op amp inputs from a single op amp output
  118. digital output
  119. Balanced Buffer Needed with a Balanced Volume Control?
  120. $150-200$ Preamp Build?
  121. Balanced tube preamplifier: suggestions?
  122. Adding summed output for sub
  123. Please help me understand this circuit...newbie here
  124. lpf and hpf setting.
  125. After search...need schematic to stereo preamp with only 4 bjt transistors
  126. Help with Zero Field input circuit
  127. The XCEN -- Balanced to Single Ended Converter
  128. Building active cross-overs into multiple power amps?
  129. "Firefly" Unity Gain Buffer
  130. Parasound P/LD 1500 hissing sound in left channel
  131. another studiomaster story
  132. Transformer with 3 secondaries
  133. Need sub woofer controller
  134. Subwoofer controller
  135. APT audio products
  136. how to hook up my preamp for recording??
  137. Class A preamp: please critique my circuit and give me helpful suggestions.
  138. Mixing slope types?
  139. Measuring Line Level Output?
  140. Buss Channel with Noise after wrong soldered bypass Cap.
  141. Volume pot for line level stereo
  142. Studiomaster 16-4
  143. Opinions: Class A Zen Preamplifier eBay Kit
  144. OpAmp based Summing circuit -- Is greater than Unity Gain here a technical problem?
  145. HELP differntial audio
  146. Part needed: Counterpoint SA-1000 tape/source toggle
  147. dc coupled aikido output?
  148. Ipod Stereo to mono summing
  149. DIY preamp component choice
  150. Velleman K8084 Earthing / Grounding
  151. Active Tone Control and preamp. Need help urgent!
  152. Repairing my balanced inputs
  153. Help with preamp build
  154. Tape out of passive preamp into passive preamp/remove resistors?
  155. SE-ONE Spatial Enhancer
  156. Potmeter to balanced amp= Hum; Help!
  157. LEDs as references in current sources
  158. Looking for inkel pp 821 pre amp service manual
  159. Original Mezmerize thread?
  160. Active xover help.
  161. The Effects Of High Resistance Interconnects
  162. dual balanced ne5534 schematic
  163. JA Pre and MyRef - FE Integration
  164. RFI filter and DC blocking cap
  165. Dyanmic mic to electret type input
  166. Help with audio test equipment design
  167. Simple precision constant current LDR controller
  168. How to control 10 pots in active cross?
  169. HF to LF shelving filter
  170. Lawo W990VS/9 - Connection Question
  171. GlassWare Audio
  172. Source select and passive volume for microcontroller-based preamp?
  173. Microcontroller stepped LDR
  174. Newbie question - PCB mounting
  175. PGA2310 based preamp+ remote
  176. Summing Amp Transformers
  177. Krell KSL AC Conversion 110 -> 240
  178. Insert-send to balanced converter
  179. That 1512 fixed gain follow by a second stage
  180. "Tape Out" on DIY Passive Pre
  181. Help to make a pcb for portable stereo preamp ?
  182. Modifying Maplin preamp kit
  183. Help choosing opamp for this circuit
  184. Help! Microphone impedance matching?
  185. adding opamp filter stage
  186. parametric filter to shelving
  187. opamps - fakes?
  188. combine active xo and parametric eq
  189. Discussion of CCS control for LED/LDR volume adjustment
  190. Small Signal Transistor and Diode Models from NXP
  191. Output Transformer Waveform- Is it good or not?
  192. TL082 Preamp Instability
  193. HELP! line-level crossover design for solar-powered biamped soundsystem
  194. How to integrate Baffle Step Compensation into existing discrete linestage?
  195. Fundamental Oscilliscope Usage
  196. Balanced buffers - analogue volume control
  197. A second order active filter with single supply - Zin ?
  198. Tamradio 600:600 Transformers
  199. Input bias current and impedance of an op amp?
  200. Otari MX7000
  201. Vca's
  202. Optimum value for R(s) in a JFET follower?
  203. Active preamp gain
  204. complementary jfet input trimmer
  205. Looking for a PGA2320 PCB
  206. Looking for discrete high performance linestage design with 12v rails
  207. Which power transformer for low hum?
  208. 2SA1015 SRPP follower bridge mode
  209. H/K 595 subwoofer connect to Aiwa reciever.
  210. Aragon 47k Schematics?
  211. Best OP-amp for EQ circuit?
  212. Broskie
  213. Active Stereo Preamp , OPAMP VS TRANSISTORS , which on would you prefer ?
  214. XLR jacks
  215. Which Aikido?
  216. Electret Mic Power Circuit for PC Input
  217. Soundcraft B100 (TL072...again)
  218. XLR, RCA and CMRR - a few questions
  219. Help Designing Preamp Schematic
  220. Here's a weird enquiry
  221. C1583 & A798
  222. Volume Control with symmetrical out and in
  223. Building a Tee attenuator
  224. Noise in balanced outputs - Parasound
  225. Need some advice on a level booster...
  226. INA134-DRV134 balanced preamp
  227. how to add protection circuits (swith circuit)
  228. resistor(s) in ground paths to reduce hum, etc.
  229. My (quick and dirty) take at a PLLXO for OB, help is welcome
  230. Lundahl LL1530 - audio application?
  231. SP-6 Light with ECC801S
  232. Active crossover help
  233. Line Level Preamp, Using JFETs, in a can.
  234. Replacement push buttons for hafler?
  235. My fuzz pedal project is behaving badly
  236. My fuzz pedal project is behaving badly
  237. Op-amp Upgrade
  238. Output transformers for Line-level signal.
  239. PGA2310 control module
  240. Shields in internally balanced equipment
  241. First effort: MM/MC phono preamp with DC servo
  242. How to figure gyrator treble boost gain
  243. AirTight ATC-2 Preamp Pictures
  244. Need help with the NE5543N opamp
  245. help building a crossover/lowpass filter
  246. Poles and throws?
  247. DC buildup in Linkwitz Transform
  248. BOZ (bride of Zen) advices asked - things to do/avoid
  249. DIY STEREO MIC-PREAMP for DSLR-Video
  250. Adjustable Linkwitz-Riley filter: Help needed with SPICE

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