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  1. Smoothing out a preamp
  2. Power tubes as rectos??? Going mad again :D
  3. Transformer specs
  4. Ampeg; opamp changes??
  5. Tweed Super questions
  6. Real World 6P3S-EV/Sovtek "5881" test
  7. Electrolytics - other than the "usual suspects"
  8. Switching '67 V'lux reverb levels
  9. Any rare/cool schematics out there?
  10. Bogen CHB35A Headphone Jack Mod?
  11. Intermodulation Distortion?
  12. Marshall Schematic question
  13. Regulated Voltage Supplies
  14. Power Scaling is Flawed?
  15. EL84 power amp design
  16. Compressor design
  17. Triaxis Books?
  18. PP 2.5k primary Output Transformer
  19. Heater Pin-outs; similar tubes
  20. Head to Cab matching
  21. Recording Engineering Books?
  22. Resistor Values; best practices
  23. Ditching the reverb
  24. I need preamp education
  25. Technical Appeal: Thomas Organ Vox Amps
  26. PA Distortion vs Speaker Distortion?
  27. Vox AC30 CC Schematic
  28. Reverb-related question
  29. Theory on getting burnt up by tube amp.
  30. Just Curious - Aluminum or Steel
  31. New SE 18 Watt build
  32. relationship between high voltage supply and plate voltage
  33. Preamp Understanding;Rp Values
  34. Arrggh..I can NEVER keep this straight!
  35. What dictates the rectifier type?
  36. JJ-7591 Special Considerations?
  37. Power amp design
  38. H&K Triamp Crunch Channel
  39. hey bruce
  40. bf Bassman project
  41. Mixing Up Triodes
  42. Matching Tubes for Mutual Transconductance
  43. Anyone want to help me with my schematic?
  44. Quad ESL63 input cap question
  45. 12BY7A pentode or triode in a guitar amp
  46. Interesting site
  47. How to secure cover for Hammond chassis
  48. Selecting a Primary Impedance
  49. Fewest gain stages.....
  50. Shock mounting tubes?
  51. Schematic for Ridicule
  52. Layout for comment
  53. switchable tone stack settings sans pots ?
  54. Designing 35W Tiny Terror w/clean channel
  55. Speakers and "musical power"
  56. Variable resistors in a tube guitar amp controlled via MIDI
  57. H&K Switchblade 100 Guitar Amp Head
  58. Introduction
  59. Bye-bye electrolytics?
  60. Transistor/Tube equivalent
  61. Using Solid State devices in support of Vacuum Tubes
  62. MOSFET Follies, Third Edition
  63. 4x12 Cab- closed vs. open pros/cons?
  64. Pentode noise - what to do...
  65. Impedance Converters / Autoformers
  66. 31vDC from 40vAC...how?
  67. Homebrew ideas ?
  68. Preamp Voltage Drop/Zener Diode?
  69. Using a High Power OPT (400W) at half power
  70. 72-73 Marshall Schematic
  71. My Amp Project: 100W 2 Channel Amp
  72. Multi-Tap Output Transformer Question
  73. bf Bassman question: phase inverter
  74. Transformer to tube selection question
  75. Fundamental tube questions
  76. Bass amp
  77. AA864/AB165 hybrid Bassman - who's got one?
  78. Can anyone explain to me...
  79. toroidal OTs
  80. what's this resistor for?
  81. Powerscaling.com
  82. 100k A for tone control
  83. high flux LED in series with ck to ground?
  84. VOLTAGE vs CURRENT ???
  85. Difference between ceramic & AINiCo speakers
  86. Lowering AC output of Xformer (low voltage)
  87. PT & OT specs for Hot Rod Deluxe?
  88. Odd Harmonics
  89. ideas about single ended amp design - new to amps
  90. soft startup for preamp tubes
  91. vibro king circuit
  92. Bridge rectifier vs. two-diode rectifier?????????
  93. best place for different types of resistors/caps?
  94. best method to minimize electromagnetic induction
  95. UL power amp
  96. Fender PA 100 to Twin Reverb convertion
  97. Funky distortion circuit discussion - fender 'super twin' amp
  98. PT current rating Q
  99. grounding pots
  100. Vox AC30 head layout
  101. another neophyte question about AC voltage
  102. Proper fusing with back-to-back xformers
  103. Alignment of choke laminations?
  104. the new guy
  105. funny statements on output imedance from article
  106. I'm in WAY over my head...
  107. Raise your wallets, I propose a test!
  108. Obsolete Electronics?
  109. Ideas to Clip the negative going pulse.
  110. Power jFET
  111. Rectifying Filaments
  112. What kind of PI is this? Marshall 20W
  113. Software for Load Lines
  114. Orange Tiny Terror B+?
  115. Compressor or Expander?
  116. bandmaster 100 watts
  117. UL output ("baby" Major) prob.
  118. Marshall KT88 amp PI's.. vs. LTP?
  119. EF 86 pentode
  120. Charge pump for bias/switching supply?
  121. Shaping the distortion
  122. Fletcher-Munson compensation
  123. parallel single ended half power mod
  124. I'M BACK... after 1 year away from the soldering iron
  125. tubes in parallel vs. cascode gain stage
  126. --tchless tone stacks
  127. Splawn amps
  128. custom chassis
  129. Software for creating PTP drawings?
  130. 2nd stage distortion
  131. what is this?
  132. Which is the best type of clipping in tubes?
  133. Effects of plate voltages?
  134. Can I use different matched sets of tubes together?
  135. Measuring Power Output
  136. Dr.Z tone control
  137. Triode question
  138. Convert Transistor EQ to Tubes?
  139. Filament "polarity"?
  140. combo vs head+ cab
  141. Low output Fender Bandmaster
  142. Solid state phase inverter
  143. Nature of preamp distortion
  144. Unused 1/2 -12ax7
  145. grid current draw
  146. Which relays for switching?
  147. Potentially stupid question concerning OTs
  148. Long Tail Phase Inverter
  149. Bandmaster tremolo into vibroverb reverb
  150. How To Determine Power Transformer Specs
  151. Stepped Power Scaling?
  152. SE 5w amp design
  153. Simplifying a tone stack?
  154. Cap parallel resistor to ground between stages?
  155. 12AX7 Output Section?
  156. Twin PA mod for VJ
  157. Un-sharing Fender cathode cap/resistor
  158. relay wiring
  159. DIY amp DI question
  160. Limiting max filter capacitance on 1st stage of Bass amp B+, or Pi filter?
  161. Reverend Transformers?
  162. master volume with pentode preamp valves
  163. Phase splitter/inverter maths/calculations!
  164. How to design power supply for tubes?
  165. bf champ & 2x12's
  166. FX loop grounding question
  167. Crosstalk between triodes
  168. Solidstate bias control for tube amp
  169. would there be any advantage in having a pp amp wihtout a traditional phase inverter
  170. Relatively meaningless question/opinions
  171. quality of transformers
  172. Hammond Guitar Output Transformers
  173. Is this pre-amp useful at all?
  174. A new transformer for an added tube stage?
  175. Building with junk, workflow procedure?
  176. Components soldered to pots and jacks
  177. Poor mans variac
  178. power transformer wiring
  179. 6V6 MOSFET driver stage failures
  180. How do power tubes affect the sound?
  181. Circuit Drawing Tips - Computer Based
  182. Some simple scopes of my new build
  183. Push-Pull in the Preamp?
  184. M/B innovations like SimulClass and DynaWatt: Are they any good?
  185. Super Saver Soldano Project
  186. head switcher help
  187. How to calculate theoretical power at the design stage
  188. nfb to ot secondary tap w/o connected speaker?
  189. Probably not...
  190. Input shielding: Trainwreck Express
  191. Basic amp topologies, what tranny's can do 'X'?
  192. speakers-> difference between guitar and hifi
  193. Junk project: Grundig tube record player
  194. New and in need of guidance
  195. Reverb bypass with 3.3Meg, 10pF?
  196. autotransformer re-wiring help
  197. A couple chassis dimensions please?
  198. Silverface Deluxe Reverb boost, any good ?
  199. Reverb driver design?
  200. Single-ended output using fixed bias
  201. simple preamps
  202. Triode class A 6V6 PP?
  203. some cranky ideas and questions
  204. designing a 15W/30W power switching amp
  205. Experience with 6AU6 Input
  206. Chassis ground in a star grounding scheme
  207. D.i.y. Bias Probe
  208. Power supply for from-scratch preamp
  209. two simple questions
  210. Logarithmic potentiometer tapers: type A vs type B
  211. Tube layout question
  212. Voltage on Preamp Tubes?
  213. Active tone controls?, how much positive feedback?
  214. Help me find the dropping resistor in Silvertone 1484
  215. Local NFB
  216. Any schematic ideas for EF39, 6v6GT, ECH35, EBC33, EL33
  217. what those 330uF caps next to switch channel transistors for?
  218. Need some help designing my amp
  219. axial and radial electrolytics
  220. ID these tubes
  221. Heater circuits
  222. Speaker for 50's blues
  223. deep boost cap values
  224. ? on the effect of Bright cap on second channel
  225. Grounding
  226. el84 chathode bias shift-longish
  227. Preamp cathodes options..
  228. voltage doubler question
  229. Need Bedrock Royale Reverb build help!!
  230. which type of capacitor is this?
  231. ground side for mallory 150's
  232. tone control options
  233. Removing Rivets?
  234. Running two transformers in parallel?
  235. 5U4GB rectifiers?
  236. modded BF Deluxe reverb
  237. Secondary's C.T. tied to Totem Pole Caps???
  238. What steel to use when making Transformers
  239. schematic drawing software
  240. my amp at the stone poney
  241. Amp EQ 101?
  242. Changing midrange freq on 5F6A
  243. Need layout & schem for new DIY amp
  244. Dual bias supply
  245. Sorry for this post but....
  246. on-line calculators when modifying or building reactive loads
  247. Preamp 101 Fender Champ
  248. Peavey Bravo PA plate supply voltage
  249. Output transformer for both SE and PP
  250. remote-cutoff compression