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  1. relay switch wiring
  2. Running up tube heads
  3. Fender FM212R Problems
  4. Speaker Box issues
  5. Typical power for tubes
  6. My new build
  7. guitar amplifier
  8. EL509 SE
  9. adding a fxloop to a guitar amp
  10. Squealing Amp - Dodgy Service Job?
  11. Guitar effects using PIC
  12. power supply
  13. advice: 6L6 hextet for SUper Twin head for bass guitar
  14. Filament transformer secondary center tap at cathode level
  15. Project: Simple bass guitar headphone monitor mixer
  16. Epiphone Valve Issues
  17. musing on guitar amp power supply filters
  18. Peavey KB300 combo keyboard amp repair
  19. experimental ganged pots on preamp
  20. Help to mod guitar pedal for bass guitar
  21. 48v Phantom Power Supply Questions
  22. Auto capacitor "drain" fixture
  23. Bass preamp: non-inverting an inverting tone stack (opamp)
  24. UK : Fender Frontman 15R 8" 8 ohm 25W speaker
  25. Vox ac30 HUM B-2
  26. Which Brand Electrolytic Caps for Fender AB763?
  27. Reverb for project valve amp
  28. Need opinion on Simple mods to Trace Elliot 715 Bass combo
  29. Matchless Hotbox - troubleshooting
  30. Marshall 1959SLP build - Your opinion?
  31. Multi Active Band-Pass Filter Equalizer (Guitar Pedal)
  32. New cab build
  33. Weber tremolo kit
  34. got a 3rd head...
  35. Amplifier for violin
  36. Making a pedal with things I found
  37. Home-made Tannerin or Ribbon Controller
  38. Crossover to protect speakers?
  39. Expensive transformer for bass DI?
  40. Problem with tube amplifier
  41. 50's Bogen DB10 need to reduce gain -Negative feedback?
  42. Notes- Line6 HD147 guitar amp power section
  43. Tone control preamp
  44. guitar effects wiring
  45. 1966 Super reverb problem child
  46. MESA STRATEGY BIAS MOD
  47. Voltage between chassis ground and earth ground
  48. 12FQ8 Guitar amp questions
  49. Plate current and red plate problem
  50. Roland Jazz Chorus 77
  51. Weber 6m45p high pitch squeal
  52. Marshall G100R CD
  53. Dean Markley rm-80-dr
  54. Possible Bias issue??
  55. Separate outputs for ElectroHarmonics - 2880
  56. 4x10 bass stack
  57. ISO: Guitar-Synth DIY Project Help.
  58. SS Vintager has dwindled volume
  59. homebrew 18 watt problem
  60. 1st filter with GZ34, is 100uf to big
  61. Marshall avt20 problem
  62. Fender Ultimate Chorus noise at power off
  63. [DIY pedal] Replace 12AU7 with 9AU7 ??
  64. Trace Elliot AH300-7 power issues Help
  65. OT Impedance
  66. Tweed Tone Control Simulation
  67. Surviving the Crate Stealth
  68. Post your Horror stories of getting lit up by Filter Caps anyone?
  69. Laney LV100 with Celestion or HH
  70. Reverse diodes on guitar amp output pentodes
  71. GE black-plate 6V6GT Test
  72. Help needed on a DIY guitar amp
  73. MSGEQ7 without micro controller?
  74. Vibrato/Tremolo
  75. effects loop, harp amp
  76. Crate Vintage Club 50 Problems
  77. Crate Stealth 50w Kicking ***
  78. Please Help me chose the right speaker
  79. Reverb hum
  80. ID E83CC Tube
  81. Instrument Keyboad audio Fault?
  82. Basic Question
  83. I have a design decision to make - mini guitar amps
  84. picked up an old Fender amp
  85. cool stuff
  86. DIY multi champ amp
  87. 5E3 Volume Tone mod
  88. Shunt regulator B+ in SE Valve Jr.
  89. DIY Stompbox (Foot Bass Drum)
  90. Expert needed: Framus Head NOISE ISSUE
  91. putting an amp and speaker inside an acoustic bass
  92. Anyone have experience with transformers for a 6p30b-r PP Amp?
  93. DIY 50W Plexi Preamp Problem
  94. How to replace a power cord on a tube amp.
  95. strauss SVCL30 AMP faults?
  96. Yamaha TRB preamp low output - HELP
  97. Power source "adaptation" on guitar amp
  98. Options for guitar amp
  99. same transformer, different voltages?
  100. Issue with '72 Twin Reverb.
  101. My Trainwreck pictures
  102. Ampmaker.com
  103. schematic or build thread for guitar amp from hammond parts
  104. JFETs as switch in 2-channel tube amp
  105. snake oil and bypass caps
  106. Need help identifying this unit
  107. Marshall G80R-CD; Some sound, Speaker is fine
  108. No sound....
  109. guitar amp transformer upgrades
  110. Bassman 50 red plate and bias
  111. whats a good recording interface WITHOUT amp modeling
  112. Behringer Eurodesk MX9000 mixer humming
  113. Pepco Amp
  114. Ampeg J-12T 60's amp issues? Help!
  115. Stereo Mic Preamp (with Phantom Power
  116. DIY iRig
  117. Looking for a schematic.. Crate BV50H
  118. EQ Design
  119. AC polarity
  120. Grounded grid stage in guitar amp
  121. Madamp g2 to reverb unit
  122. Building power electronics into a wooden cabinet?
  123. TUBES: where do you buy yours?
  124. Adding LED & DC Jack to fuzz circuit
  125. Silvertone Organ Amp
  126. German? amp help please
  127. Guitar amp is 60W or 100W?
  128. Which is the most powerful Class D amplifier?
  129. Preamp for ceramic piezo pickup
  130. DC Pilot Light energy source - cathode resistor?
  131. Marshall 50W ECC808 Homebrew
  132. Speaker Cab Project and Questions
  133. tremolo pot value change - consequences?
  134. How is tube distortion supposed to look like on a scope?
  135. Designed 12AT7 Long Tail Pair phase inverter - half of it doesn't work right
  136. Diy bass amp.
  137. Cajón
  138. How do I connect a microphone to an amp?
  139. Question about Noval 9 pin minature sockets
  140. Lace sensor
  141. New idea for instrument pickups
  142. Lace Alumitone pickups
  143. Q-tuner neodymiun magnet guitar & bass pickups
  144. tone stack buffer
  145. looking for 5 1/4" drivers that handle deep bass
  146. JTM45/50 build, B+ question
  147. .001 ceramic
  148. Tube amp fluctuating volume on moderate gain
  149. Harmony H-305 over conducting 5y3?
  150. Interior Bass Cabinet Volume
  151. Fender clone mashup help (6G3 + 6G6)
  152. Whitley PA Guitar Conversion
  153. Could the SA-310 bass cab be used for a bass and guitar cab?
  154. Bass Amp Project High Quality Transformer
  155. Guitar EL84 push-pull, tone control placement
  156. 3 band tone stack in ecl86 stage
  157. Converting a non-MIDI keyboard
  158. 48V phantom supply for mic
  159. Crate v50-112 noisy clean channel
  160. Internally Miked Accordion Project (5 x WM-61A)
  161. LM4780 Guitar Amp Question
  162. Speaker delay circut design?
  163. Anybody tried the ID series yet?
  164. Building a spring reverb unit
  165. brief sound when switching off amp
  166. Curing hum in Mullard 3+3 valve amplifiers
  167. Build guitar amp with 2 6L6 or 4 6V6?
  168. Installing a potentiometer/volume control
  169. DIY 8 Watt Portable Guitar Amp
  170. headphone input addition to tube amp
  171. Hammond AO-29 conversion
  172. 8 Watt SE Plexi Style Tube Amp Made from an Akai Roberts Reel Monoblock
  173. Another DIY tube based fuzz
  174. St. George Amplifier
  175. Attenuator for tube amp
  176. front end channel blend - have you tried it?
  177. Fender Twin Troubleshooting Help Please - Jedi Master Needed!
  178. Grounding back to back transformers
  179. 5f1 transformers
  180. MARSHALL 9200
  181. schematic for yamaha hundred 212 guitar amp
  182. Marshall 275 valve amp transformer
  183. Blackstar Amps mains connection?
  184. How to improve marshall guitar amp with harsh overdrive?
  185. Need Help with a 1996 SWR Workingman's 12 Combo Amp
  186. PAiA stack-in-a-box guitar preamp kit
  187. 4 guitar amps 1 guitar cabinet, I need help
  188. DIY Guitar Amp Oscillation
  189. 6BM8 guitar amp - SE or PP?
  190. New to tubes, SE guitar amp
  191. schematic needed, cascading gain stages for m@rsh@ll copy
  192. current issue
  193. JCM800 / 2204 style build hum / buzz plea for help
  194. Behringer BX3000t Scematic or info
  195. WEM Cpicat with 3 12AX7's (no 6BR8)
  196. fender acoustasonic 80w
  197. Why does the Tone Bender circuit even work at all?
  198. Loud amplifier hum
  199. eq input and output buffer
  200. LMB 3 b***
  201. Fender Musicmaster melting tube tube sockets?
  202. 5Y3GT rectifier difficulty
  203. Heater regulator for guitar amp?
  204. trainwreck speaker baffle reduction
  205. Help needed identifying 1962 marshall bluesbreaker (reissue) power tx connections
  206. power transformer wiring help
  207. AVT50 Repair
  208. speaker attenuator
  209. odd-ball PI circuit identification, and headroom question
  210. New amp a success, then dead.
  211. CLAVIOLNES
  212. little help here
  213. Do guitar amps tend to self-oscillate?
  214. Mercury magnetics FBfd-om in matchless spitfire
  215. line-out on guitar amp
  216. high distortion pedal
  217. EL34 load line - sanity check
  218. Requesting schematics for Markbass little mark I
  219. Tube Amp Dummy Load questions
  220. Onboard bass preamp troubleshooting
  221. Rickenbacker RA-600
  222. [Help] Modify To Overdrive
  223. Maximum power of Blackstar ID series?
  224. guitar amp baffle board
  225. Weber bias calculator
  226. Which Neo bass units sound good?
  227. Phonic Roadgear 260 Schematic wanted
  228. DIY ribbon microphone preamp question
  229. 2Ж27Л - 4Ж1Л - 12Ж1Л - 4П1Л - How to use ??
  230. preamp to handle peaks
  231. 5150 II tube head with hot bias
  232. Output transformer and shock from the speaker jack
  233. vertical line cabinet design for bass guitar
  234. Making my own Turret setting tool. What bevel?
  235. Single ended tube amp Lead Dressing
  236. Fender sidekick reverb 30 noise problem
  237. Which transformer wires are which?
  238. Amplifier grounding
  239. Can I wire speakers like this?
  240. Power tube squeeling on standby?!
  241. High Gain Guitar Preamp
  242. 18 watt toroidal transformer questions
  243. Troubles with EL84 class A output stage
  244. Help with '65 Bassman!!!
  245. Matchless Hotbox Layout problems
  246. push-pull El34 bias question
  247. Recommendations for single ended guitar amp build
  248. Which transformer for small practice tube SE amp
  249. Champ grounding hum
  250. Buzzing in preamp circuit?

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