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  1. Some HMMM on my SRPP
  2. Grid Stopper
  3. diy tube amp problem
  4. The Red Light District - another PP EL84 amp
  5. Balanced 300B output for headphones or loudspeakers?
  6. 5692, the best?
  7. Power transformer quality differences
  8. Is it possible to use regulated DC for a rectifier tube?
  9. Transformer Secondary Power
  10. Phono preamp
  11. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  12. Physically small rectifier tube with 5V heaters
  13. Distorting 5687 preamp circuit
  14. Looking for a good 300B datasheet
  15. CCS is your friend!
  16. Valve Pre Amp & Class D Power Amp
  17. heater supply questions
  18. sub-mini valve
  19. Amp kit recommendations
  20. First amp for a new in valves
  21. Loud buzz and hum from one monoblock!!!
  22. Stueyh
  23. Big *** '50s Power Supply, now what? 300B SET ideas...
  24. Phono Preamp Design Needed
  25. Severe oscillation in 6L6 amp
  26. How to tweak warmth to a power amp?
  27. Can anyone explain me this Loftin White amp?
  28. Substituting dual triodes
  29. ValveWave-1 My first Tube Project
  30. changing output capacitor value? what should I consider?
  31. motor run caps in the output? good or bad idea?
  32. resistors across the heater voltage then the middle is grounded
  33. Switched Pot Source Needed
  34. transcendar transformer
  35. Installing tubes upside-down? Bad? Maybe it doesn't matter?
  36. Voltage Multipliers
  37. I want to build an AM Tube Tuner
  38. Tube Amp CCS?
  39. S-5 Electronics Tube Amp Kit
  40. Tube amps from eBay (China)
  41. filament supply: batteries v TentLabs?
  42. replace a 5651 tube with a zener?
  43. tube design books
  44. Bogen chb100 input conversion suggestions
  45. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  46. R-core xformers from China
  47. Counterpoint Service manual wanted
  48. Two chokes in one pot?
  49. help with a transformer
  50. 311T (211 alike) HIGH power triode
  51. Re-attaching anode cap to 805 or 811A tube
  52. "Fisher Doctor"
  53. Aikido + class D in the output stage
  54. tube-shop-com
  55. Ultrasonic heaters
  56. Grounding the Filament Winding
  57. Lundahl LL1680 for balanced output
  58. Website is back & new books posted
  59. strange tube G1 S/5
  60. First Tube Amp Needs an Overhaul
  61. pspice models for tubes
  62. Source for iron cores?
  63. Quad EL84 SE question
  64. Use of 12j1l and gu-50 tubes
  65. Shuguang 300B-98C
  66. Philips AG-9016 Upgrades???
  67. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  68. tube amp in a PCB with a toroidal xformer beside it?
  69. Need advice running 220v in USA
  70. Parallel-Push-Pull KT66 organ amp conversion ???
  71. new on tubes
  72. Balance 5687 pre-amp any advise??
  73. The Limitations of an EL34 in UL
  74. Source for tube bases....?
  75. 10Y, 26, 27 and 45: relative microphonics
  76. KT77 Mod Question/Idea/Punshishment
  77. KT88 SE with Edcor xfrmr
  78. Diy Distortion Pedal
  79. 45 fans expanded horizons upstream?
  80. 12B4a Cathode Follower
  81. Hybrid voltage doubler using tube and diode
  82. Finally finished my first tube amp!
  83. advice on an EL84 Push pull Amp schematic
  84. Vintage radio
  85. Look for 12AU7 Preamp Circuit .
  86. PSU question? Going tube rectified
  87. PSU Rebuild Help Pleas
  88. Screeching tubes
  89. help in adjusting Vout in the power supply of the "Brute force in a line stage" by Er
  90. Fisher 800 restoration
  91. stern's ecl86 amp
  92. Look for Western Electric KS-16547-L1 circuit diagram
  93. Help about grommes 500C
  94. Dynaco MK III with 6146A tubes.
  95. Volume pot for Musical Fidelity F22 pre amp.
  96. Don't you just hate it when
  97. Bogen 8417 tube conversion..?
  98. How to Build Unbilical from PS to Phono
  99. Class A SET preamp, help
  100. Grounding MFA Luminescence
  101. custom transformer manufacturers (potted if possible)
  102. To Recap - A Question
  103. KT 44 anyone tried these
  104. Volts AC rating in power supply caps
  105. unfamiliar tube brand
  106. power supply schematic with a 6080 used as a "pass tube"
  107. why so CHEAP!?
  108. Antique Electronic Supply
  109. Best Use For My Sansui Iron?
  110. Help on AMC CVT 3030
  111. Heathkit W-5M Red Plate Issue
  112. 1st Post (here) : ) My first project: Boozhound Amp
  113. regulated DC heater supply
  114. Help me pick up some good tubes! Urgent!
  115. CLCRC power supply config
  116. Choke Replacement Question.
  117. What tube instead of 7189
  118. Help on PP EL 34 from Claus Byrith
  119. Datasheet of PTT4 tube?
  120. ready to give up
  121. O-Ring sizes for Tube Dampers
  122. preamp /amp combination question
  123. Strange Transformer Question.....
  124. Audio Note M3/4/5/6/8 schematics
  125. Lundahl LL1540 for SY's heretical?
  126. Henrys
  127. 955 Acorn tubes
  128. Do you know these Ampex mono Amps
  129. Audio Research Resistor Type
  130. volume issues
  131. Need advice for best CCS
  132. confusion in the resistor/capacitor values and B+ supply for the aikido
  133. What are the diferences between these ways of output?
  134. PS for tube preamp
  135. what resistors are in the aikido signal path
  136. clarification of aikido heater supply
  137. Audio Note schematics
  138. Data for PE08/40
  139. PA-060 use
  140. Anode loaded 6080 giving less than unity gain, Why??
  141. 3/8in thick acrylic - would this make a good chassis?
  142. 6c19p Se?
  143. CF and SRPP in one circuit . .
  144. WE417/437 with battery or RC on cathode
  145. Building a Preamp:Dual Outputs Question
  146. Audio Note Conquest?
  147. metallized caps instead of electrolytics in a tube rectifier power supply?
  148. Power transformer as Parafeed output?
  149. Bogen amp
  150. Noob question about plate load
  151. adjusting gain?
  152. Lowering HT
  153. Kaneda hybrid preamp error ?
  154. Match priorities to schematic & toobs
  155. what do you think of this integrated?
  156. Modified Audio Note M7 Tube Pre Amplifier PCB
  157. lundahl xformers - are they potted?
  158. Beginner's very simple line pre-amp
  159. UX-226 Preamp
  160. Difference between microphones
  161. sv572-30, where to find
  162. E182CC - how to connect heater supply?
  163. Aikido pre tube for Minimum Gain
  164. 14gt8...clipping diodes?
  165. HPHV regulator
  166. Grounded Grid
  167. NYAL Super-It - removing volume pots, what resistor value to replace them?
  168. Another Bogen Conversion
  169. Trouble with my "new" PAS-3 Preamp
  170. Tubalizer, Monica
  171. musical angel modified marantz 7 preamp schematics
  172. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  173. Solder directly on tube?
  174. article in NY Times on Russian tubes
  175. Sovtek's sad tale
  176. audio research LS25 preamp
  177. Schematic needed PL519 Push-Pull Ultra-Linear amp
  178. Use 6C19 in a phono amp?
  179. 6L6 Push pull -- Power tranny question
  180. INPOL technology. Duh.
  181. Transformer problem
  182. Anyone tried a hi-voltage project as their first?
  183. Schematic needed PL519 Class A SE
  184. Giaime's new toy - aka the UniOctal
  185. Critique my circuit?
  186. New EC8010-VT52 Amp
  187. EL84/6BQ5 triode pp with no cathode biasing
  188. EL34 Push Pull in Class A
  189. In search of tube audiophile in Dhaka, Bangladesh
  190. Passive preamp with utc transformers
  191. RGN rectifiers in PSUD2...
  192. Power amp harmonics ?
  193. bypass tone controls on heathkit sp-2
  194. PS Caps
  195. Doubts on cathode stripping in tubes
  196. Edcor amplifier --> 6l6 PP
  197. Welborne labs phono stage needs help, got killed in power surge last night
  198. Huge OPT and small tubes
  199. UTC technology
  200. Luxman 38FD schematic
  201. EL84 PP Diy. Pls help me!!!
  202. Grounding case of 6J5
  203. Tube HW question from a software guy
  204. 12AU7 tube preamplifier schema
  205. "Improved RIAA by Jax"-Power supply help needed!!!
  206. OT Overload question
  207. V76
  208. Application of 6877 ?
  209. First nos tubes
  210. Looking for tube sockets
  211. Input transformers impedance questions
  212. Hybrid amp schema?
  213. Hybrid Cascode ?
  214. Interstage topology question
  215. raccomandation with valve amps
  216. Power Transformers in Output!
  217. How do I design "SCREEN GRID DRIVE"
  218. My El34 SET
  219. Schematic needed 811a Class A2
  220. Power transformer from Tek545 'oscope
  221. Agape Audio Labs
  222. ETF06 - A century of good sound
  223. I completed my amp!
  224. Overload recovery
  225. Converting SS eq. to Tube
  226. oscillation
  227. Tube preamp with: 1V in and 15Vout???
  228. Electrolytic Cap Search
  229. Bibster's 5687 Linestage, the return
  230. Anyone know anything about Morreto amps?
  231. Determining Output Power
  232. Turn on static?
  233. Estimate power transformer current rate?
  234. Control grid Voltage / grid stoppers...
  235. Horizontal TV tubes used in amplifier?
  236. tube sterio preamp complete
  237. Cons for using instrumentation tube PS for project amp...
  238. Svetlanas site down?
  239. Calculations for new Power transformer
  240. Mullard CV4015 info?
  241. SMPS for tube amp?
  242. Pentode Push-Pull
  243. LL1660S Anomaly
  244. DIY Hybrid poweramp noise and hum problem
  245. tube questions
  246. Problems w/biasing a lC50
  247. Big Honkin Tele
  248. Tube DIY store
  249. Pronouced 300B amp Midrange
  250. Tube preamp with current mirror

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