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  1. Filmosound dual pot
  2. Hi power Moskido with A/B output Bias
  3. how easy to make tube amp?
  4. metal film resistors or carbon?
  5. Quad II tubes replacement
  6. Sirius & FM
  7. Can someone look at a Counterpoint SA7 for me?
  8. The Wintersweet High-Vividity Project
  9. loftin white 801 amp
  10. Pics of unique design of amp chassis?
  11. Heathkit AA-32 modifications / upgrades
  12. Tango XE-20S Specification
  13. Question about Edcor output transformer
  14. SE EL84 output stage?
  15. New ST-70 Driver board from Blackburn Audio
  16. Transformer primary rating question
  17. Heathkit A7(c?) Rebuild
  18. Rewiring a socket to take 6GK6 instead of 6BQ5
  19. 317 CCS Question
  20. Active filter design software
  21. Larry Moore 10Y Squared
  22. Do you hear “pop” when you turn off your amp?
  23. Filmosound - Guitar - Ground
  24. Simple tube phono stage
  25. Tube phono amp repair/redesign help wanted
  26. Repairing a tape echo with tubes (Dynacord Echocord Super 62a)
  27. tube newbie needs guidance
  28. Interesting linestage optimizing ideas
  29. Powered up my Lafayette 224A for the first time!
  30. Hickok Upgrades
  31. Passive BP filter sim results
  32. 100mA heater tubes for phono
  33. Audiotester + M-audio - info + question
  34. Indestructible HV hybrid regulator!
  35. yet another modified 5-20 amplifier
  36. help with OT for 15 watt tube amp
  37. Power supply for 12SL7 phono preamp
  38. few questions
  39. mystery 5881
  40. does lower B+ cause scratchy distortion?
  41. SY please keep us updated about your site
  42. Cleveland Ohio members?
  43. Scope tricks for detecting rectifier/choke switching
  44. To choke or not to choke
  45. Tube rectified LC PS for 6SN7 Aikido - choke DCR question
  46. Convergent Audio Technology (CAT) SL-1 preamplifier
  47. Very low current CCS?
  48. Morgan Jones' E88CC Phono
  49. pse help, unity µ triode as a phase inverter
  50. variable capacitor volume control
  51. What to do with P-P transformer ?
  52. 837 tube for SE Amplifier
  53. calculating transformer current draw question
  54. glass audio 1995 "Single Ended Glory"
  55. Manual for Heathkit AA-121 Power Amp
  56. Low gain triode recommendation plz
  57. Tubelab PP question
  58. Output transformer impedance question
  59. Choke... The side makes difference?
  60. Tubelab...Why "sandy" SE amps?
  61. Fostex Meets Pentode I need some NFB
  62. Oddball Sweep tubes in PP
  63. Noob - where to start?
  64. big doubt: dynakit st35 VS diytube st35clone
  65. Compactron Output Tubes
  66. XPP amp
  67. Tubelab SE ... which 5AR4 ?
  68. Getting only 400 hours on Class A2 PP tube
  69. Pete Millett's 829B amp -> monoblocks
  70. 6JU8A Spec confusion
  71. post on amp design by a newbie
  72. (INDIA) ECC802S/EL84 build, hardware requirements
  73. 6gw8 /ECL86 El Cheapo modifications
  74. Danielak's 300B design
  75. 6080 @ 800µA Question ...
  76. Groundplane layout theory
  77. delay on for 83 mercury vapor
  78. Anyone tried "Weber Copper" SS rectifyers?
  79. Scored a bunch of tubes at HamCon
  80. AB2 Anyone else done similiar
  81. 6v6 pp amplifier
  82. Loud 60 cycle Hum from tube amp.
  83. Building a Preamp
  84. another Big One....:)
  85. JJ factory pictures ...
  86. Good enough CFs
  87. What's a good way to clean tubes w/o taking off the labeling?
  88. 6BX7 or 12B4A for small SE amp?
  89. Schematic collection posted by a kind soul...
  90. Dumb question, but...
  91. Zen Quad 22
  92. I'm baffled -- 6AK6 push-pull amp
  93. pin count question
  94. 1G3 Max Dissapation?
  95. Edcor Transformers
  96. 12EL6 preamp
  97. Request for EICO HF-20 experiences and ideas
  98. So would this work?
  99. A valve pre amp for my disco and electric guitar.
  100. Small-signal (or small power) pentode that can handle 400V (or more)?
  101. Are 6GM8's rare?
  102. How to lower mains voltage using resistors
  103. Music angel XD-SE EL34
  104. Potential project for some inherited transformers
  105. Car Tube Amp?
  106. Marantz 7 Preamp
  107. Euridice pramp but with 45
  108. Tubelab SE Parafeed Monoblocks (5 channel)
  109. Can 6AK6's take high voltages?
  110. Tube equal to one section of a 12AX7?
  111. HK 'Deuce front end on G2 drive output stage?
  112. Direct-coupled cathode/source follower driver in PP?
  113. CCS power supply loading..
  114. Photo Gallery -- Simple SE build
  115. Buying vintage good tubes
  116. current tube manufacturers and or brands
  117. PSU with TL783-question
  118. Hashimoto H-20-7U for 6v6 in triode SE..?
  119. Speakers impedance
  120. mesh plate el34 (supereTNT)
  121. Tagboard amps
  122. 807 single ended guitar amp
  123. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  124. 6CL6 vs. 12BY7A
  125. Suggestions for a good tube line amp
  126. 12el6
  127. High Squareness Ratio of a Transformer
  128. What causes a tube to crack?
  129. My 66 Fender bassman tube guitar amp is cutting out intermittently and is making a bl
  130. Ming Da MC-7R transformers for Quad 22 clone.
  131. SimpleSE and Switches
  132. Bias and distortion 6EM7
  133. Need ideas - 6L6GA & 6X5GT
  134. tube microphone preamp design ideas
  135. Firestone Air Chief
  136. Zenith Console find, amp suggestions?
  137. 5842 russian equiv 6S45P or 6C45PI ?
  138. bizarre or good topology idea?
  139. 12 EL6 car preamp
  140. Waxy substance leaking from vintage OPT
  141. Output transformer protection fuses
  142. 5670 SRPP DC coupled to 6S4A
  143. L as last filter element?
  144. Strong cigarette smell in a tube amp
  145. Gas coupling?
  146. Differences between nos Tesla E88CC?
  147. Harmonic parrot food?
  148. Modified 6V6 amp, 350 volt @ 250 K HZ output
  149. best current production el34
  150. Help for correct grounding a Dared VP-845
  151. two 6AL5s as a bridge rectifier
  152. JFET Switching on my tube amp
  153. Leak / Dynaco DIY
  154. S-5 tube amp kits
  155. I wanna build a CHEAP mono tube amp, need advice....
  156. 12ax7
  157. Testing for tube shorts
  158. KT66 alternatives in Quad II amps?
  159. FOR TUBE: 350V High Voltage Regulator
  160. what guideline to match pre and amp?
  161. New to list and 300B amp kits
  162. Krank 100w head w/ only 14v output
  163. Silvertone 1448 Output Transformer?
  164. Primary impedance output transformer
  165. isolation transformer
  166. Cloning transformers
  167. EAR509
  168. EL84 for Ipod and guitar
  169. Tubelab web site down, no more SimpleSE
  170. Schematics of potential interest
  171. super capacitor for dc heater
  172. Need a kit ??
  173. Edcor XSM10K/15K like intestage in tube SE ?
  174. Does anyone know of an LTSpice model for 12B4?
  175. where to order V-Cap ?
  176. Input Volume Pot
  177. Red Army Power-amp
  178. Cloning a HF-60
  179. Michaelson & Austin TVA-1 info
  180. analyze a circuit...quiescence current and R-Load
  181. how to calculate SE Coupling Cap Voltage ?
  182. Tubelab Simple SE Rectifier Problem?
  183. Mullard ECC88
  184. Engineering vs tube rolling
  185. Diode Peak working voltage ?
  186. Help wanted; combining topologies to "new" 807 PPP design ?
  187. Tubelab Simple SE with two Transformers - Centertaps?
  188. Hybrid Amp
  189. transformer information need help
  190. Replacing a cathode resistor with a CCS
  191. DC offset and relays
  192. Sourcing JJ 300B tubes
  193. EICO HF-12 Iron - Use in Guitar Amp?
  194. Decware Vs Rogue Audio
  195. Global Feedback on Mikael's KT88SE
  196. Generating big voltage swings without 'iron'
  197. 6AS7G Grid Voltage ??
  198. Next project 6EM7
  199. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  200. What to replace these caps with?
  201. 5691 plate value ratings
  202. Bussiness trip to Singapore
  203. Paco mike tube amp
  204. Emergency help with Wes' amp
  205. 2A3 without cathode bypass cap???
  206. Best way to burn-in my new SE xfrmers on the bench?
  207. tubelabse pt wiring
  208. Need help with my ST70
  209. 6sn7 direct coupled and transformer coupled
  210. Hickok 605A Test 6DJ8
  211. Grounded Grid Preamp
  212. Beginner WLTM fixer of 300B hum...
  213. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  214. How to figure gain on split-load with positive feedback?
  215. Mikaels KT88SE & VTV Octal Linestage
  216. idiot needs help making sense of funny squigles - Filmosound
  217. Custom Transformer?
  218. How are this schematic ?
  219. Need help with a Tube preamp Kit (6Z4, 6N3)
  220. data sheets for 7239 and 8068
  221. John Swenson's New BDT preamp
  222. no coupling caps
  223. 6SN7GT brand
  224. tube voltage regulator error amp
  225. driving 845's
  226. Just ordered a Korg EMX-1
  227. Maida for Screen Supply
  228. cracked el34 -> replacement squeals
  229. SimpleSE goes Push Pull
  230. Possibly defective Mullard 12AT7?
  231. Basic measurement question re: shorts
  232. EL84 DC 10Y Project
  233. TubeCad Journal FET CCS
  234. russian tube
  235. Source for #81 light bulb for Hickok Fuse
  236. pchw 's tube hybrid amp accurian info
  237. 3c24 se amp
  238. schematic of firstsoundaudio pre amp
  239. 300b-98c mesh bias
  240. 6SN7 coin base tubes
  241. tube rectifiers and electrolytic reforming w/ variac
  242. I'm running my leak stereo 20 single ended. WHAT???
  243. Varnish on old transformer
  244. SE parallel output questions
  245. Darius Loftin White explained
  246. best capacitor
  247. New Sensor's "Mullard" EL34 reissue?
  248. Best Way to Control Plate Voltage?
  249. Any Mods for a Noisy Leak Point one Stereo?
  250. tubes for 87db spendor

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