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  1. Looking for Behringer 112D schematic
  2. signal chain in guitar preamp, boost before eq or eq before boost
  3. Multiband distortion FX device (help please)
  4. Valvestate 8080 autotransformer
  5. Adding distorted channel to a FBT500 tube amp
  6. A 2x4 Acoustic Guitar, For Something Completely Different.
  7. Modification of old Yamaha piezo preamp for Fishman pickup - help needed
  8. Bad noises when volume pot at max level
  9. Single EL34 guitar power amp advice
  10. Resistive attenuator: -10db for guitar amps
  11. 1966 Harmony H415 rework - bias too high
  12. Low output from 5E3 build - Are my voltages okay?
  13. 1st stage of the tube amp is oscillating 50Hz.
  14. Handy Amp with Big Muff EQ
  15. 2SK170GR buffer guitar
  16. Valvestate VS102r tone mods
  17. Conn 640 tube organ
  18. Matchless Lightning Build Low Gain
  19. Transformers back to back
  20. soldano SLO
  21. Orange drop polypropylene capacitors
  22. Anyone using FRFR with amp modelling like Amplifire etc?
  23. 6sj7 grid leak bias- lower gain
  24. Crate BT100 Bass Combo Amp Dirty Signal
  25. Marshall JTM30 low plate voltage
  26. Need help troubleshooting bass amp
  27. Webcor 4901 issue.
  28. Homemade Orange Tiny Terror clone
  29. Princeton AA1164 with 5 Watt EL91
  30. Amp Footswitch Advice Needed
  31. Bass combo line out level to low for altec power amp.
  32. 5F6a Bassman hum issue.
  33. Dynacord Echocord Super 65
  34. Original Irig
  35. Convert a 15watt Amp to Battery powered
  36. EQ, phase, and distortion
  37. Yamaha G100
  38. My soviet drum machine isn't working properly
  39. Help me sort out this 72-76 Telecaster Custom
  40. Choosing an op-amp for a guitar to line-level preamp
  41. 1979 Bassman 10 mod suggestions?
  42. Seeking schematics or info on Davoli Krundaal Model 7092 K
  43. 12AX7 Headroom Question
  44. twin reverb 65 help needed.
  45. Opto-Compressor
  46. Phantom powered mic preamp
  47. need help with diagnosing organ power amp problem
  48. Reverb Tanks
  49. Electret condenser mics
  50. Where do i put effects loop in guitar preamp circuit?
  51. Best bang for the buck microphone for recording music
  52. Request for comments on a low-voltage hybrid preamp/amp
  53. CCS preamp in my DIY guitar amp
  54. DI transformer Cap value
  55. Power Tube Attenuation
  56. Short Neck Bass
  57. question for a 4xKT88 PP amp
  58. S.S. guitar amp output stage
  59. Extra Sunn 190L Tubes?
  60. Help needed determining which reverb tank for an amp.
  61. Onboard rechargeable power supply for electric guitar/bass
  62. Can someone help me with a part number?
  63. Chip Amp with FX Loop
  64. Yamaha MS40DR Electronic Drums Monitor
  65. UK Vox night train eco mode
  66. Chip amp with FX send/return
  67. Digital Delay construction and study material
  68. Mixing Console - Acceptable Ripple Spec
  69. New York Dave's Passive Summing Mixer - Mute Switch
  70. Peavey Studio Pro 112
  71. Thomas organ amp with vibrato
  72. Anyone Build Rod Elliot's Bass Guitar Amp (Project 152)?
  73. Switching in a 2 x 12 guitar cab - help?
  74. LINE 6 AX2 amp has bad channel
  75. Red-Plating Amp
  76. Carlsbro GLX100 Schematic
  77. Limiter release in dB/s
  78. can somebody explain whats going on here? vintage amp boards?
  79. Help with X100b
  80. Dynacord Eminent 2T manual
  81. Need a help with OM-27 Omnichord
  82. High gain amplifier trouble with positive feedback
  83. High gain amplifier trouble with positive feedback
  84. 5F1 Build- Noob Questions
  85. El34 Single Ended Opt (Fender Champ)
  86. Need advice on channel switching issue
  87. Advice on Speaker for 15W Tube Amp
  88. Need a little help with a sticker
  89. Korg nutube 6p1 tube buffer/harmonizer
  90. Pet Peeve Peavey (GPS 3500)
  91. One-Hundred-Fifty Watts from Korgs New Triode?!
  92. Guitar mod
  93. one valve unity or so balanced cable driver?
  94. Bass tube preamp Project.-
  95. help in installing a preamp in my diy mixer
  96. ADA flanger not working properly
  97. reverb for a 5F1
  98. repairing broken gallien kreuger - help!
  99. Tube combo amp for nylon electric
  100. Fender Sunn SR-30a - Noise Issue.
  101. Cause of soft clipping in the germanium Fuzz Face?
  102. Fender Blues Jr. Oscillation Coming out of Standby
  103. Flapping and Buzzing Woofer
  104. Mesa Mark II footswitch circuit draws from heaters, unbalanced and noisy results
  105. Sarco V18-22 tube amplifier
  106. How to test germanium output transistors
  107. 5C1 Scatch build (voltages ?)
  108. ELK VIKING 103 Guitar amplifier
  109. OTL amps for guitar duty
  110. New guitar amp build and schematic help
  111. Choke current at startup exceeds rating? :(
  112. Mixing Console - Coupling Cap Values
  113. Tube amp blaring noise when i turn the stand by switch on!!!
  114. PT, OT, Choke Placement
  115. Project27 adding reverb and overdrive
  116. Are there any low-power class D amplifiers that are not crap for guitar amplification
  117. signal split
  118. Question re Guitar Amp Power Supply
  119. Guitar preamp
  120. I need suggestions for a guitar amp kit
  121. Bendix 6384 Fender Showman Mod
  122. Adding an FX loop to an acoustic amp
  123. Cascode LTP mic preamp
  124. Acoustic guitar preamp based on Fender
  125. Help needed on DIY TL074 mixer
  126. Hammond H-100 FX loop best location
  127. Suggested Mods for Peavey Butcher - Negative Feedback Loop Tone control?
  128. Vox AC 30SS Vibrato problem
  129. Hammond Organ 7591 Bias Adjustment
  130. Improvisation on five handmade synthesizers.
  131. Edcor XPP for EL84 amp
  132. Magnetic Pickup for Cello - Idea/Question
  133. Looking for rack gear
  134. Egnator Renegade 65
  135. Crate XT120R Issue
  136. Input transformer for Shure M63
  137. need help with passive volume and tone
  138. Bass amp with Audiopower DPA-600/F (sad story)
  139. Phonic PWA 2400 (manual, experience?)
  140. Mod TDA7429P Amp Board
  141. Marshall VS30R
  142. Tesseract Guitar Practice Amp
  143. Preamp for Triaxial Piezo Soundboard Transducer
  144. Need a new output transformer, checkmate 50!
  145. Laney Supergroup MK1 restoration
  146. Solid State version of a VOX AC-30 Guitar Amp
  147. Output Tube Into Op Amp
  148. Standby switch buzz?
  149. Peculiar balanced output connection?
  150. I need help understanding what I really need in a Tube Amp
  151. Marshall JCM800 2204 clone, need help
  152. Line Level Splitter for Amp FX Loop
  153. Beginner questions
  154. tube tremolo schematic for SE
  155. Hartke LH500
  156. Asym oscillation BEFORE modified Phase Inverter in Mesa Mark II
  157. Question on replacing faulty amp.
  158. PV Nashville 400 'Metzger' Reverb Mod
  159. using darlington configuration for increase gain in guitar distortion circuit
  160. Ovation K-6427 PVMS PA Amplifier
  161. Egnater Rebel 20 MKII - 'classic/high gain' switch - how does it work?
  162. Passive Low Cut, High Cut, Bandpass Filter
  163. I've seen two factory guitar amps asking to place 8ohm speaker on 4ohm tap
  164. help with limiter suitable for guitar amp.
  165. Klemt echollette m40 hum and feedback
  166. Hi All, Newbie at Audio, I am so desperate
  167. Mid Scoop suggestions ?
  168. Need help with tube reverb circuit noise
  169. Guitar Help needed.
  170. Solo schematics for DIY mixer
  171. Peavey PV1200 amp
  172. Maestro Rhythm King - Schematic?
  173. DIY 15/30W Amplifier
  174. Practice amp modification (Dean Markley k-15x)
  175. Identfying old RCA tubes
  176. REQ: Bogen HTA125A Schematic
  177. Soul Food Preamp into Mullard 3-3 power - good idea?
  178. Converting Hammond LR A (ex HR-40) to Hifi Mono Amp
  179. Webcor 166-1
  180. Weak Reverb in a Gibson Scout GA 17 RVT
  181. AKG C414B-ULS with low output
  182. ART DR-X Distortion Help with Diagnosis
  183. Vintage style Tube mic pre want to build help
  184. trainwreck express master volume
  185. Hiwatt Maxwatt B60/12
  186. Conn541 amplifier schematic needed
  187. Grid or cathode bias 5C1
  188. Anyone have a Fishman Loudbox schematic to share?
  189. Extract Preamp Section from Fender Frontman 212R
  190. weird R-C coupling
  191. Amp Maker WF-55 -- Have you built it? Did you like it?
  192. what are good AC values for B+ ripple at 480VDC
  193. Baldwin Panoramic Tone Converter
  194. How support Noval Socket for Pedal
  195. Less than 1w practice guitar amp Tube Valve
  196. Cannibal guitar amp project...
  197. Ibanez AEQ SS Repair
  198. 1979 Pro Reverb problem
  199. Oscillation Mystery Solved!
  200. anyone has a DBX 223XS can help me?
  201. Marshall AVT20 footswitch?
  202. behringer Inuke 3000 failure
  203. 60's JMI VOX AC15 tremolo
  204. Suzuki Omnichord Om-27: only makes a low hum-noise
  205. Badcat Guitar Amp schematic needed
  206. Peavey TNT 150
  207. Ampeg J12T isuues
  208. EL84 puzzle
  209. Build Troubleshooting
  210. DC Cathode Follower Mixer
  211. Sub miniature pentode push pull design help
  212. Class A question
  213. Modelling Two Amps in One - Tone Switching
  214. Marshall JMP 77 MV 100W amplifier HT issues
  215. Getting more crunch out of 5F1 clone.
  216. Hey Enzo!!
  217. buzzing in peavey tko 115 help please
  218. Budget Bud?
  219. Space Charge tubes - and uses
  220. Obsessive-Compulsive Purchase
  221. Troubleshooting a 6v6 plexi
  222. Marshall Lead and Bass SS JMP 2195 issues
  223. basic potentiometer help please
  224. Volume Pedal + Amp Board = ?
  225. AB Systems 410C amp mysteries
  226. Can I use 1 op amp with channel switching preamp
  227. Trying To Understand This Power Supply Design
  228. Master Volume stuck on full Marshall 101cfx
  229. Amplee Thunder vintage 35, guitar amp
  230. Dynacord Echocord Mini, no echo!
  231. Impedance Mismatch BurnUp Danger Question
  232. Help with modification on sound effects board
  233. about V73 Maihak amp
  234. Building a crossover for a acoustic mic/pickup
  235. Help with a tube guitar amp for my father, schematic sanity check
  236. Low tech Bass guitar amp/speaker
  237. Splitting an electro-acoustic guitar signal
  238. Help with identification
  239. Need help to design new amp, payed $$$
  240. Mono/Stereo lines and adapters - a few questions...
  241. Peavey 8.5 power amp.
  242. DIY guitar amp
  243. Idea Shaping and Guidance Needed
  244. Grid voltage Pultec 1A
  245. tube amp capacitor voltage ratings help please
  246. Omnichord Repair
  247. Pultec low freq pops
  248. SM57 to 100K input tube premap impedance
  249. Input Jack = ground loop??
  250. Heeeelp:( 70's plexi build

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