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  1. Firefly Rev. 5 Questions - Low output, high distortion
  2. unhealthy idling pt load with only htrs
  3. Need help ID'ing OP Amp schematic symbols
  4. QSC vs JBL
  5. VVR-Your experiences and recommendations, please.
  6. Tube amp with SS phase inverter
  7. Scope distortion pattern- diagnose problem?
  8. Wurlitzer electric piano interference
  9. Craaft Model "Bassic" (Solton Music) Schematic wanted
  10. Help Troubleshooting/Debugging my Laney TI-15
  11. Tube triode preamp design, a quest for Headroom....
  12. Power Transformer HV 830volts, Match to Valve amp project?
  13. Binson Echorec Tape Heads
  14. THOMAS ORGAN CO. AMPLIFIER from TL-1 , need schematic
  15. B1ues boy amp questions
  16. No Bias Votage on 12AX7
  17. Fender Blues Deluxe Power Transformer Specs?
  18. mismatched tubes
  19. Wurlitzer 4500 amp conversion
  20. Conversion of a hammond PR40 amp
  21. Loud buzz or clean but quiet.
  22. Split loading plate on 12AX7
  23. TDA2040 vs LM1875T for guitar amp
  24. Problem with 'Bassman Micro' 5F6A build -Help!
  25. HH 100l help
  26. Sound to light converter.
  27. OPT winding impedances question
  28. Weber 6M18 TMB amp questions
  29. Determining Current Requirements
  30. SWR redhead preamp issue
  31. Dim Bulb Tester
  32. Echocord S65 tubes tape delay needs repair
  33. Providing 6.3 VAC to EZ81 rectifier tube
  34. Salvaged Hammond AO-68-1a
  35. Orange TH30 amp: weird components ?
  36. line-6 Spider III Speaker upgrade?
  37. Help with Fender Blues Deville
  38. Reverb recovery stage with AC125 transistor in Philicorda GM751 organ - problems
  39. Marshall valvestate 8080 buzz
  40. Stereo Pre Amp conversion
  41. BF Fender Bassman AA864 Mojotone build noise problems!
  42. Aphex Tubessence 107 Mic Pre
  43. Putting two tube amp OPTs in series??
  44. Bogen PA B+ Voltage
  45. Marshall 18watt amp circuit - sure ain't a Fender!
  46. Transformer ID
  47. Marshall JCM 2000 - DSL401
  48. Harmony H303A
  49. Hammond 1750E instead 1750H
  50. Help with guitar pickups wiring highly wanted!
  51. ibanez guitar amp. TBX150R
  52. single channel 12ax7 , F-2B, cathode follower using 5670
  53. Help with 2 pickups loose wire!
  54. SR 100 marantz parts
  55. Pwr Xfmr-less Tube Guitar Preamp
  56. tel ray ad n echo
  57. Determine the impedance & winding ratio of a bad output transformer - Help Request
  58. Help with 1x15 build
  59. Power supply - Voltage drop
  60. Octal Madness rebuild. Thoughts, questions.
  61. "Best" Champ / Princeton schematic?
  62. Unique project: guitar amp load, effects loop and reverb all-in-one
  63. Will effect pedal design deliver any volume using speaker?
  64. I can't seem to access ssguitar.com???
  65. Behringer PMP-1000 Mixer Pow.er Supply info
  66. Log potentiometer action, and making your own.
  67. AC Voltmeter - what's possible?
  68. Single pot tone stack on Fender 5C3 Deluxe
  69. Tweeter recommendation for acoustic guitar amp
  70. Tweeter recommendation for acoustic guitar amp
  71. An obscure question about triodes, impedance, clipping, and gain
  72. 6.5V on the heaters?
  73. Sound Barrier PCS-2500
  74. Audition/Teisco schematic
  75. Shielded cable for piezo pick-up...
  76. Guitar Pickup Wiring
  77. Allen S-100 Amp 1979
  78. Help - valve won't fire
  79. amplifier transistor problem
  80. Reverb tank question
  81. Peavey ICA2400 Amplifier
  82. vox amplug2
  83. Lab gruppen
  84. Gallien-Krueger Power Issue
  85. Xfmr problem - quick question
  86. Tone stack for Champ 5F1
  87. Behringer Amp Clipping, want advice.
  88. DRRI Volume Pot
  89. Need a good 8" guitar amp speaker
  90. How much Capacitance/Filtering is too much?
  91. help with my new Lowrey MX-1
  92. Epiphone Electar 75th Ann
  93. New build troubleshooting
  94. Reverb Tank Between Pre and Power Tube
  95. Bernie amp blind diagnosis
  96. Twin Reverb AA769 notAB768
  97. 5F1 Circuit Alteration
  98. Values for resistors in schematic
  99. Build report: Tube preamp for bass (or guitar)
  100. Tube Amp Distortion
  101. Bassman clone NFB wiring for multi-tap OT
  102. voicing your guitar
  103. Latest project, guitar amp with clean/distorted channels.
  104. Trying to design Marshall JTM50
  105. Premier 90 Buzz
  106. AC30 output stage
  107. FET wierd unharmonic distortion
  108. HF distortion ... Guitar amp problem
  109. Subwoofer Bass Amp?
  110. TV Tube Amp?
  111. Guitar Tube Amp - Double Checking Choice of Power Transformer
  112. 100w + amp project
  113. Old 45 Jukebox parts
  114. Leslie Speaker spin speed ?
  115. The COMET
  116. Can this ProX One Power Inverter work as an amp?
  117. Repurpose SS stereo transformer/power supply in a guitar amp
  118. Gain Staging Ideas
  119. Recommendations on MIDI interface for Android?
  120. Please Help With Leslie Guitar Crossover
  121. All tube amp from Peavey Vypyr Tube 120W
  122. 1982 Fender Concert II - low volume?
  123. Fender Pro Series Twin Amp impedance question
  124. Need ideas for Leslie replace amp
  125. Fender Deluxe Reverb AA763 vs AB763
  126. Crackle and static on warm up
  127. Latest project 100 watt quad el34 guitar amplifier.
  128. line input for Yamaha P95
  129. Hammon AO-43 Conversion
  130. Humbucker with piezo preamp .....
  131. TL072 2ch booster
  132. Biyang WANG AMPS VT-1H mini guitar amp
  133. ENGL Fireball 100 no sound
  134. 50C5 for a Newbee.
  135. Determining amp rating of transformer from Crate GFX-15 transformer
  136. Deluxe Reverb Silverface crackles and pops
  137. Extension Speakers
  138. Raven Guitar Amp
  139. Silvertone 1392 Tremolo ???
  140. haha
  141. my new amp build
  142. Advice on matching transformer design needed
  143. Amp with Speakers Match
  144. Premier 90 Reverb Buzzzzz
  145. Peavy Classic 30 mods
  146. Peavey Classi 30 cuts out
  147. Overdriving the phase splitter
  148. Peavey CS800X
  149. Amp finally done -- Time to Share
  150. Peavey Mark VI bass amplifier 402 module repair
  151. Epiphone EA-72 What Is 2 On Positions??
  152. questions about Fender Musicmaster Bass amp schematic
  153. The DuKane Medallion 1A831 300 watt Monster
  154. Realistically starting a tube amplifier company in 2015?
  155. Re-biasing mic input for bass guitar
  156. make an active subwoofer with seas l22?
  157. Need a bit of help, Tube based piezo preamp for guitar
  158. Help please! 5f1 champ build with No sound!
  159. Small tube amps
  160. Fender Deville 2x12 making extreme noises.
  161. Fender M-80 Bass Amp / distorted output
  162. RQ: Dynacord EMINENT 1040 M Service Manual
  163. My diy stuff over the years
  164. Matchless Chieftain
  165. preamp power supply question
  166. Hughes and Keittner Attax 100 blowing fuse
  167. Guitar amplifier project.
  168. Music Man GP-3 Bias
  169. Can you tell the difference?
  170. Converting CB Tube to guitar Tube Amp
  171. 1936 Mills jukebox
  172. Post repair power-up questions
  173. Grid stoppers - Oscillation fix?
  174. Anyone familiar with AB 600LX?
  175. Gretsch G5222-VCM Vintage Custom Modified
  176. Strangely modded Carlsbro 50 TOP
  177. Very old Valve amp
  178. Amp Xfmr Chassis Orientation
  179. Montgomery Wards Model 62-9033
  180. Latest pruchase Marshall 100HDFX
  181. Suitcase Amp Volume Pot
  182. EQ vs Tone Stack
  183. Dynacord DA15/V Schmatic wanted
  184. Marshall 200 Watt "PIG" Build
  185. Where to put the tone stack?
  186. DIY AC15 AC50 normal and top boost channels Tremolo not working
  187. Pignose 7-100 Mods
  188. solid state and tube in parallel (like a bizarro roland jazz chorus)?
  189. What does that resistor do..?
  190. Orange and Other Amp Design Features
  191. GE 5 Star and Other High Reliability Tubes
  192. Cobalt Twin Amp Design
  193. Calculating plate load impedance with a mixing resistor
  194. 12AX7 Switched Listening Test
  195. Remove Silicon Clippers, Start stacking opamps/only LED clippers are accetable.
  196. ecc83 vs 6sl7 any old tricks?
  197. Fender Hot Rod Deville 410 Reissue Clean Up
  198. Piezo Pick Up and Pre Amp Project...
  199. Faylon P200 rebuild
  200. Webcor 2611 morph into practice amp
  201. Fender FM212 - Deluxe 90 PowerAmp problems
  202. Troubleshooting Power Amp/Output of a Fender Deluxe 90
  203. EVH 5150 III
  204. mod for microphone input ?
  205. Philco Tube Radio Guitar Amp Project
  206. 90's Ampeg Reverberocket Reissue Speakers
  207. Converting a vintage electret condenser to phantom power
  208. You'll likely learn something watching this....
  209. Troubleshooting my Ashdown head
  210. Newcomb pathfinder PA into guitar amp
  211. 6X4 or EZ81 rectifiers in a guitar amp
  212. Ampeg B15 preamp: Drive balanced transformer from PI?
  213. Need assistance with a bad Sunn Beta Lead
  214. Viking RP61 tube preamp into Mic preamp?
  215. Latest purchase
  216. A transformer as an effect
  217. Connecting Guitar Tube Amp to External Line Match Audio Step Up Transformer
  218. New amp build, initial thoughts?
  219. Beginner Load Line Question
  220. Headphones on 18W Marshall
  221. Keyer Chip issues
  222. sd convertible 100w head diy preamp modules
  223. Acetone organ distorted output
  224. Tonal effect of fluctuation in 12ax7 supply voltage?
  225. Reverb replacement
  226. Guitar headphone amp with cab sim
  227. Resistors Chained up/Parallel with OPT Primaries
  228. help improving cheap QFX wireless mic
  229. 1961 Silvertone Model 4722 Organ Guitar amp conversion questions
  230. Modding an old practice amp - switches, pots etc
  231. Stumped! 5F11 circuit owning me.
  232. Need a catch-all pin 1 solution
  233. Vermona Synthesizer troubleshooting
  234. Peavey PV-1.3K power amp repair question
  235. 12AX7 Distortion - high grid voltage?
  236. Peavey XD234 Required
  237. Peavey PV1500
  238. Replacing 3 Pin Rhodes Capacitors
  239. 6080 DC coupled guitar amp
  240. Need Help with a SWR Workingman's 12 Combo Amp
  241. Removing a humbucker increases noise?
  242. Guitar Speaker Chat
  243. I Warped Back to the 80s' hahaha
  244. Amplifying an electro acoustic guitar
  245. 6080 cascade guitar amp
  246. Blues Jr. Mods
  247. Hum immediate when powering on
  248. stomp box with low impedance output
  249. BBE 362 NR Sonic Maximizer
  250. How do I limit tube supply voltage in the event B+ rises a little?

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