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  1. 5U4 versus GZ34 (5AR4)?
  2. no sound at all in marshall jmp
  3. Marshall Help
  4. Amp techs, what are your labor rates? What would you charge?
  5. what's your opinon on using HexFred diodes in tube amps?
  6. Major Change In Emporium Use: Please Read!
  7. Amperex Bugle Boy 12AX7 anybody use them?
  8. PR + Emi Red fang?
  9. Digitech gsp 2101 locked up????
  10. Amp tech in Cincinnati
  11. Princeton Reverb Experts?
  12. Metal Oxide vs Carbon Film for screen grid resistor
  13. slave out?
  14. Question about safe practices... (bias voltage)
  15. Cabinet Impedance?
  16. New Tung-Sol 12ax7
  17. OT swapping info
  18. Laney AOR 50watt model 1045
  19. Use guitar cable from head to cabinet?
  20. anyone near Milwaukee??? I need someone to fix my amp.
  21. Chassis source: FOUND ONE!
  22. wire strippers for teflon wire?!?
  23. Champ with 8ohm Tone Tubby
  24. Vintage Tung-Sol blackplate 12AX7s out there?
  25. pt for '66 super reverb bf
  26. "British Champ" w/ Power Scaling, Which Builders?
  27. How do you rebias a Bruno Cowtipper 22?
  28. Polytone Broke!
  29. channel selection of a 6505+ via midi?
  30. Amp/Channel Switching
  31. Whine - Bluesbreaker - and Pedal Question
  32. Power Amp Damage??? Help Please.
  33. Powering Orange Cabs w/ Fender Hot Rod ???
  34. Tube Tester ?
  35. Help with plexi hum.
  36. Safe to mix speakers in a series wired cab?
  37. About mixing a 1x12 and 4x12 - does ea. cab get ½ amps power?
  38. Venus 3 manual/schematics
  39. Amp making a harsh crackle on one channel?!
  40. differences between 2 identical output transformers,one of them multi tap
  41. Twin Reverb Power Tubes...dead tube?
  42. half power load switch
  43. GE 6201 for Reverb Driver in Fender BF amps?
  44. Please help me build a parts list for 5E5A Pro
  45. Replacement reverb tanks for BF amps?
  46. Of Eyelet Boards and Solder Blobs
  47. Bogen CHB 35A tricks?
  48. Allen Old Flame bias question/biasing in general
  49. 5150 III schematic
  50. Connecting a 6v6 output tube in triode mode?
  51. woodworking question
  52. Voltage conversion - how much trouble?
  53. Vibrato not working in Showman Reverb TFL5000D
  54. Are long speaker cables viable?
  55. AXESS FX1 Power Supply Question
  56. Rocktron Vendetta Output Tube Q
  57. BF Amp Filter Design Differences
  58. What transformers in a '72 Marshall?
  59. what should i do. save up for another guitar or get a Marshall AD50?
  60. 1 watt Carbon Film or 1/2 watt Carbon Comp?
  61. Anemic Super Champ
  62. Looking for Belden 1874/U 2 conductor, shielded wire
  63. Dead tube socket
  64. 1980 Hiwatt: Variac Recommended?
  65. Cabinet rear panels: Clearance for tolex??
  66. Marshall JCM 800 4010 capacitor question
  67. Delaware and South Jersey people! Name me a good tech!
  68. '67 Bassman problem......ideas???
  69. New rectifier tubes.....re-bias??
  70. Volume drop from normal to tremolo on DRRI?
  71. New 12AY7s - Groove Tubes vs EH
  72. ampeg sb12 bias
  73. Vox AC30 won't turn on...
  74. Help with a old Gibson GA-18t
  75. amp status LED
  76. Learning speaker reconing?
  77. question about Derek Trucks' amp????
  78. Can you modify reverb to decrease/quicken decay???
  79. Vibro-King Clone
  80. reproduction tube chart - where can I get them?
  81. Will JJ 6V6s take more abuse than some NOS?
  82. Installing a midrange control on a Fender
  83. Help (SF) Vibro Champ popping fuses
  84. Clean channel too bright
  85. tube replacement
  86. Help me identify this speaker
  87. Vibrato vs Tremolo
  88. help understanding split load PI's
  89. Tube Biasing and Tube Specs
  90. SF Princeton Reverb: Weird noise w/ delay pedals...
  91. Marshall plate voltage low??
  92. Cross Post: Add Mix to Muff?
  93. Need help dating a blackface Bandmaster head
  94. ID This OT
  95. RCA to 1/4" speaker jack?
  96. Marshall 2204 screen supply changes
  97. semi on-topic (but not really:) Help repairing an old hi fi speaker of strange design
  98. Bias????
  99. Cathode Follower and PI tubes- tonal impact?
  100. BF Deluxe Reverb High pitch noise
  101. 2x12 speaker hook up/out of phase
  102. 6V6 pair bias cap value
  103. Marshall 1974X tube question
  104. amp not producing sound
  105. Blues Deluxe problems
  106. Cabinet String: Glued in?
  107. How do you know when your amp tubes are spanked?
  108. Sig-x tube problem
  109. Redplating in Marshall 2061CX??
  110. Newbie question
  111. Grounding a '65 Vox Pacemaker
  112. Screws: Bulk suppliers?
  113. deluxe reverb clone normal channel not working
  114. 6sc7/6sn7/6sj7
  115. Mixing speakers
  116. Sourcing a ~'77 Marshall 100w output transformer?
  117. How does a phase inverter affect tone?
  118. Converting plexi clone to Cathode Bias?
  119. Fender 66' black face twin turning on after years of non use???
  120. When in half power mode, do the ohms double?
  121. Pot replacment on Fender Super Reverb..
  122. seeking Fender reverb unit (6G15) knowledge
  123. About my newly acquired Marshall 1960AX cab....
  124. amp problem... help please
  125. Using 6CN6/EL38 for power tubes in place of 6V6's
  126. Tube help! Please!
  127. How would you make a '59 Bassman LTD run in class A...
  128. What kind of tubes?
  129. Series/Parallel vs. Parallel/Series speaker wiring
  130. PTP Tremwreck
  131. Urgent Help Needed Troubleshooting Amp Problem
  132. I need a line out from a Dr Z Airbrake.
  133. 6L6 recommendations...
  134. Effect of speaker specs on tone?
  135. Using different power tubes in an amp
  136. Could I mod a Fender Champion 600 to Vox AC4?
  137. Troubleshooting reverb..
  138. bad hum/noise from my amp that shouldn't be there(need help)
  139. Please school me on rectifier tubes...EZ81?
  140. Not sure what's going on with my JCM800
  141. Biasing a JCM800 2210
  142. Silvertone 1389 transformerless amp: looking for schematic
  143. Marshall 1960 cab 32ohms, how?
  144. Another Blown Fuse Request
  145. Effects Loop for BFDR
  146. JAN-CKR-6L6 Metal Casing Tube; Is it a suitable tube for Carr Mercury?
  147. Accutronics tanks from 70's...
  148. So I opened her up...(Mesa .50 Cal + problem)(pictures included)
  149. Help.. Jennings JEI V30
  150. How do I check plate voltages on my preamp tubes?
  151. Condensation/Saftey question
  152. Amperex Tubes Question
  153. Humming Phase Inverter
  154. Boogie MKI problem
  155. Marshall Style switching Jacks?
  156. Doing a Cap job.....Vintage Fender.....
  157. anyone have a Motorola KSN1142 piezo horn driver laying around?
  158. Discharging Voltage in Amps
  159. radio reception when using ab/y
  160. Advice requested: Marshall + Step Up Transformer
  161. Power scaling in a Fender blackface style amp -- Any experience?
  162. Source for single conductor 22awg shielded wire?
  163. Portaflex PT replacement options?
  164. bedroom bass amp head for DIYer?
  165. Diagnosis needed
  166. Mesa MkIV Troubleshooting Assistance...
  167. Do all tubes have secret codes?
  168. In an effort to understand.....
  169. Tube Testing question
  170. HELP! Badger down.
  171. noob question about tweed amps and biasing
  172. Power Transformer upgrade in 5E3?
  173. 68 Bandmaster
  174. AC30 buzzzzzz
  175. Mallory dark yellow cardboard electrolytic filter caps : How old ?
  176. Attenuator - cables?
  177. How long until my friends' amp blows?
  178. SFPR: distortion when vibrato on?
  179. why a choke?
  180. Fender blakcface amps - what causes bass to fart-out
  181. "Proper" Speaker Ohmage Choice ?
  182. cone cry
  183. Help with rola speaker
  184. soldering question
  185. Output tranny swap to multi tap?
  186. power transformer question for Blackface project
  187. OHM load change from removing 1 speaker in a Super Reverb, bad?
  188. Output Transformer wiring Question?
  189. Speaker Wattage/Efficiency Question
  190. IIC+ channel switch, what can I use ?
  191. Fender Pro-Reverb AA165 240v mod
  192. Ideas for replacing recessed handles?
  193. Fender Vibro-king cathode follower stage?
  194. Scored a 6G6-B, Lots of Tech Questions
  195. Question about Cross-Line PPIMV
  196. another noob question about biasing tweed amps
  197. Warmer 12AX7
  198. max dissipation for EH 6V6 ??
  199. Solid State Amp Question: Boosting line level before the input...
  200. Fender Red Knob loosing volume
  201. Tubes or sick amp?
  202. soldano sp77 pre amp, need info form owners
  203. Sovtek Mig 50 help!
  204. Bogner Shiva Help - Static/buzzing on low E, A, and D
  205. SF Pro Reverb Volume Issue?
  206. help ID'ing EV speaker
  207. Fender Super Reverb: coupling cap help...
  208. Good NOS 12AX7 for PI?
  209. Going from Sovtek so called 5881s to EL-34s
  210. What is the name for these tube problems?
  211. El 34 tube life ?
  212. Current Lot of KT88's
  213. Groove Tubes Bias help
  214. 12ax7s in vibroverb custom???
  215. Question - Amp Problem SCXD
  216. amp tone question
  217. LTP as a Mixer
  218. What is the best filter cap for re-capping a vintage Hiwatt?
  219. Volume surge after the amp is switched off?
  220. Biassing Precautions
  221. 6v6 tubes for Meteor II
  222. anyone built an Allen sweet Spot?
  223. AC30CC Head Question
  224. opinions on Tino Zottola's books?
  225. I might just be stupid...Hum question
  226. Traynor YBA-1 preamp tubes - which is which?
  227. My cab's 16 ohm jack reads 22 ohms??
  228. JCM 2000 DSL100 no sound! please help!
  229. dyslexic needs help w fender tube slots
  230. Amp Tech in Orlando FL
  231. NOS JAN Philips 6L6WGB in 1966 Twin Reverb YES or NO
  232. jcm900 biasing problems!!!
  233. Shield the BOTTOM of the Reverb Pan? -SFDR
  234. Preamp tube clipping. Top vs bottom of wave.
  235. Source for NOS Fender BF Amp Tube Cans ?
  236. 18 watt TMB Problem
  237. shielding for the amp cab?
  238. What do these resistors do?
  239. Classic 50 static issue
  240. Weber Bias Rite
  241. 8 ohms into one 16 ohm cab
  242. Possible to turn an 8ohm speaker into 4ohm?
  243. Static type noise with no input
  244. EL34 Mesh Plates?
  245. Vibro-king W 15" Spkr Weber Z Matcher
  246. Vibro-Champ Help
  247. tube started to redplate, what's the likely problem?
  248. Best Re-Cap Job you ever seen...or NOT seen
  249. Repairing the footswitch relay on a Boogie
  250. Switch "Whump" in OD Pedal