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  1. 6v6 pp amplifier
  2. Loud 60 cycle Hum from tube amp.
  3. Building a Preamp
  4. another Big One....:)
  5. JJ factory pictures ...
  6. Good enough CFs
  7. What's a good way to clean tubes w/o taking off the labeling?
  8. 6BX7 or 12B4A for small SE amp?
  9. Schematic collection posted by a kind soul...
  10. Dumb question, but...
  11. Zen Quad 22
  12. I'm baffled -- 6AK6 push-pull amp
  13. pin count question
  14. 1G3 Max Dissapation?
  15. Edcor Transformers
  16. 12EL6 preamp
  17. Request for EICO HF-20 experiences and ideas
  18. So would this work?
  19. A valve pre amp for my disco and electric guitar.
  20. Small-signal (or small power) pentode that can handle 400V (or more)?
  21. Are 6GM8's rare?
  22. How to lower mains voltage using resistors
  23. Music angel XD-SE EL34
  24. Potential project for some inherited transformers
  25. Car Tube Amp?
  26. Marantz 7 Preamp
  27. Euridice pramp but with 45
  28. Tubelab SE Parafeed Monoblocks (5 channel)
  29. Can 6AK6's take high voltages?
  30. Tube equal to one section of a 12AX7?
  31. HK 'Deuce front end on G2 drive output stage?
  32. Direct-coupled cathode/source follower driver in PP?
  33. CCS power supply loading..
  34. Photo Gallery -- Simple SE build
  35. Buying vintage good tubes
  36. current tube manufacturers and or brands
  37. PSU with TL783-question
  38. Hashimoto H-20-7U for 6v6 in triode SE..?
  39. Speakers impedance
  40. mesh plate el34 (supereTNT)
  41. Tagboard amps
  42. 807 single ended guitar amp
  43. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  44. 6CL6 vs. 12BY7A
  45. Suggestions for a good tube line amp
  46. 12el6
  47. High Squareness Ratio of a Transformer
  48. What causes a tube to crack?
  49. My 66 Fender bassman tube guitar amp is cutting out intermittently and is making a bl
  50. Ming Da MC-7R transformers for Quad 22 clone.
  51. SimpleSE and Switches
  52. Bias and distortion 6EM7
  53. Need ideas - 6L6GA & 6X5GT
  54. tube microphone preamp design ideas
  55. Firestone Air Chief
  56. Zenith Console find, amp suggestions?
  57. 5842 russian equiv 6S45P or 6C45PI ?
  58. bizarre or good topology idea?
  59. 12 EL6 car preamp
  60. Waxy substance leaking from vintage OPT
  61. Output transformer protection fuses
  62. 5670 SRPP DC coupled to 6S4A
  63. L as last filter element?
  64. Strong cigarette smell in a tube amp
  65. Gas coupling?
  66. Differences between nos Tesla E88CC?
  67. Harmonic parrot food?
  68. Modified 6V6 amp, 350 volt @ 250 K HZ output
  69. best current production el34
  70. Help for correct grounding a Dared VP-845
  71. two 6AL5s as a bridge rectifier
  72. JFET Switching on my tube amp
  73. Leak / Dynaco DIY
  74. S-5 tube amp kits
  75. I wanna build a CHEAP mono tube amp, need advice....
  76. 12ax7
  77. Testing for tube shorts
  78. KT66 alternatives in Quad II amps?
  79. FOR TUBE: 350V High Voltage Regulator
  80. what guideline to match pre and amp?
  81. New to list and 300B amp kits
  82. Krank 100w head w/ only 14v output
  83. Silvertone 1448 Output Transformer?
  84. Primary impedance output transformer
  85. isolation transformer
  86. Cloning transformers
  87. EAR509
  88. EL84 for Ipod and guitar
  89. Tubelab web site down, no more SimpleSE
  90. Schematics of potential interest
  91. super capacitor for dc heater
  92. Need a kit ??
  93. Edcor XSM10K/15K like intestage in tube SE ?
  94. Does anyone know of an LTSpice model for 12B4?
  95. where to order V-Cap ?
  96. Input Volume Pot
  97. Red Army Power-amp
  98. Cloning a HF-60
  99. Michaelson & Austin TVA-1 info
  100. analyze a circuit...quiescence current and R-Load
  101. how to calculate SE Coupling Cap Voltage ?
  102. Tubelab Simple SE Rectifier Problem?
  103. Mullard ECC88
  104. Engineering vs tube rolling
  105. Diode Peak working voltage ?
  106. Help wanted; combining topologies to "new" 807 PPP design ?
  107. Tubelab Simple SE with two Transformers - Centertaps?
  108. Hybrid Amp
  109. transformer information need help
  110. Replacing a cathode resistor with a CCS
  111. DC offset and relays
  112. Sourcing JJ 300B tubes
  113. EICO HF-12 Iron - Use in Guitar Amp?
  114. Decware Vs Rogue Audio
  115. Global Feedback on Mikael's KT88SE
  116. Generating big voltage swings without 'iron'
  117. 6AS7G Grid Voltage ??
  118. Next project 6EM7
  119. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  120. What to replace these caps with?
  121. 5691 plate value ratings
  122. Bussiness trip to Singapore
  123. Paco mike tube amp
  124. Emergency help with Wes' amp
  125. 2A3 without cathode bypass cap???
  126. Best way to burn-in my new SE xfrmers on the bench?
  127. tubelabse pt wiring
  128. Need help with my ST70
  129. 6sn7 direct coupled and transformer coupled
  130. Hickok 605A Test 6DJ8
  131. Grounded Grid Preamp
  132. Beginner WLTM fixer of 300B hum...
  133. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  134. How to figure gain on split-load with positive feedback?
  135. Mikaels KT88SE & VTV Octal Linestage
  136. idiot needs help making sense of funny squigles - Filmosound
  137. Custom Transformer?
  138. How are this schematic ?
  139. Need help with a Tube preamp Kit (6Z4, 6N3)
  140. data sheets for 7239 and 8068
  141. John Swenson's New BDT preamp
  142. no coupling caps
  143. 6SN7GT brand
  144. tube voltage regulator error amp
  145. driving 845's
  146. Just ordered a Korg EMX-1
  147. Maida for Screen Supply
  148. cracked el34 -> replacement squeals
  149. SimpleSE goes Push Pull
  150. Possibly defective Mullard 12AT7?
  151. Basic measurement question re: shorts
  152. EL84 DC 10Y Project
  153. TubeCad Journal FET CCS
  154. russian tube
  155. Source for #81 light bulb for Hickok Fuse
  156. pchw 's tube hybrid amp accurian info
  157. 3c24 se amp
  158. schematic of firstsoundaudio pre amp
  159. 300b-98c mesh bias
  160. 6SN7 coin base tubes
  161. tube rectifiers and electrolytic reforming w/ variac
  162. I'm running my leak stereo 20 single ended. WHAT???
  163. Varnish on old transformer
  164. SE parallel output questions
  165. Darius Loftin White explained
  166. best capacitor
  167. New Sensor's "Mullard" EL34 reissue?
  168. Best Way to Control Plate Voltage?
  169. Any Mods for a Noisy Leak Point one Stereo?
  170. tubes for 87db spendor
  171. 4v for rectifier tube
  172. Need help rebuilding old PA amplifier!
  173. inverted?
  174. Old Tube Radio - Restoration Project
  175. quick - need parts retailers Wash DC area
  176. H&K Tubeman Circuit Questions (added schematics!)
  177. Marshalls: Why did 600V B+ become 470V?
  178. Raising filament winding above cathode with a EZ81 in the circuit OK?
  179. Problem with Beard Audio
  180. 100K pot in a preamp?
  181. Motor Run Capacitor
  182. Power transformer for 6883B tube uses?
  183. EAGLE PCB help with socket on it
  184. Rca Mi-38188
  185. C- Battery Supply
  186. Seperating Preamp from Amp in Integrated Amps
  187. Wind my own output transformer for 100w bass amp
  188. Please help me in getting rid of the buzz.
  189. Tube Phono stage dilema
  190. Grounding with single tap secondary...
  191. VTL - Manley stereo 75
  192. What about KT100 in SE ?
  193. Tube amplifier kit needed to drive low efficiency speaker
  194. feeling very pleased with myself
  195. Quicksilver Retube
  196. My Totem Arro 4 ohm load on KT-88 based amp
  197. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  198. for fans of the EL38 - the E3375
  199. 811a Opt
  200. Guitar amp for Wes is running!
  201. Pure class-A or class AB?
  202. 12B4 PP Full Differential Amp Notion
  203. My opinion on Audio Note M10 schematic - Japan version
  204. B&K 650 tubecharts
  205. Help, I need your advice - What Next?
  206. Sloppy, Unreadable, Childlike schematics
  207. I Have Finished My Standell 25L15 Clone
  208. Anybody going to tomorrow's NVCF fair in Leamington?
  209. Randall RGT 100 Amp Problem
  210. Pete's SE E-Linear
  211. 0A2 or 0D3 ?
  212. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  213. LTP feedback
  214. Need help with my super six...
  215. EL509 as a CF
  216. SE Diode
  217. 6FD7, 6BM8 or other
  218. My OLD Project....... cheap tube audio project!!!
  219. tube noise
  220. Fisher 400 questions
  221. RL12P35 amplifier
  222. 6AS7 ppp
  223. 6j5 dc coupled to 12b4a as 2a3 driver
  224. '81 Twin problems
  225. The sound of different EL34īs.
  226. Output transformer and FB
  227. Triode curves for 6AU5
  228. 26/el-84 amp possible..?
  229. Vaic 52B monos
  230. Hour Meter for a Tube Amp..
  231. volume pot replacement
  232. Any Ampeg SVT-II (non-pro) schematics???
  233. Ampex 600
  234. Tubing Testing...how are these numbers?
  235. No-R No-C Power Supply
  236. Are my Speakers efficient enough for my Amp?
  237. doesn't sound quite right
  238. 6DJ8 alternates?
  239. Is this the dumbest question?
  240. Fuse between B+ and output transformer?
  241. Telefunken Double Label Error...Ever seen this?
  242. 300B Summer Build Question
  243. 1,25kW tube amplifier/modulator
  244. 12sn7 heater-cathode voltage
  245. Toroidal output transformers with screen drive- why not?
  246. Help With 6v6 Spice Model
  247. Different 5AR4's have different voltages and warm up time.
  248. Edcor OPT in S5 Electronics K-16LS kit?
  249. SRPP Powersupply, replace R with choke ?
  250. First tube amp