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  1. finished my PCC88 preamp
  2. Max 300B SE output possible with James 6123HS ?
  3. Who's right re bias adjustment versus plate voltage
  4. voltage current regulator
  5. Yarland 34 ciii amp
  6. CCS/5842/300B ground schematic.
  7. tube sockets
  8. PX25
  9. Research on tubes and circuits simple circuits
  10. using only 1/2 of a dual triode
  11. Some HMMM on my SRPP
  12. Grid Stopper
  13. diy tube amp problem
  14. The Red Light District - another PP EL84 amp
  15. Balanced 300B output for headphones or loudspeakers?
  16. 5692, the best?
  17. Power transformer quality differences
  18. Is it possible to use regulated DC for a rectifier tube?
  19. Transformer Secondary Power
  20. Phono preamp
  21. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  22. Physically small rectifier tube with 5V heaters
  23. Distorting 5687 preamp circuit
  24. Looking for a good 300B datasheet
  25. CCS is your friend!
  26. Valve Pre Amp & Class D Power Amp
  27. heater supply questions
  28. sub-mini valve
  29. Amp kit recommendations
  30. First amp for a new in valves
  31. Loud buzz and hum from one monoblock!!!
  32. Stueyh
  33. Big *** '50s Power Supply, now what? 300B SET ideas...
  34. Phono Preamp Design Needed
  35. antique fender bassman 50 retubed HELP
  36. Severe oscillation in 6L6 amp
  37. How to tweak warmth to a power amp?
  38. Can anyone explain me this Loftin White amp?
  39. Substituting dual triodes
  40. ValveWave-1 My first Tube Project
  41. changing output capacitor value? what should I consider?
  42. motor run caps in the output? good or bad idea?
  43. resistors across the heater voltage then the middle is grounded
  44. Switched Pot Source Needed
  45. transcendar transformer
  46. Installing tubes upside-down? Bad? Maybe it doesn't matter?
  47. Voltage Multipliers
  48. I want to build an AM Tube Tuner
  49. Tube Amp CCS?
  50. S-5 Electronics Tube Amp Kit
  51. Tube amps from eBay (China)
  52. filament supply: batteries v TentLabs?
  53. replace a 5651 tube with a zener?
  54. tube design books
  55. Bogen chb100 input conversion suggestions
  56. MesaBoogie 400+ clone
  57. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  58. R-core xformers from China
  59. Counterpoint Service manual wanted
  60. Two chokes in one pot?
  61. help with a transformer
  62. 311T (211 alike) HIGH power triode
  63. Re-attaching anode cap to 805 or 811A tube
  64. "Fisher Doctor"
  65. Aikido + class D in the output stage
  66. tube-shop-com
  67. Ultrasonic heaters
  68. Grounding the Filament Winding
  69. Lundahl LL1680 for balanced output
  70. Website is back & new books posted
  71. strange tube G1 S/5
  72. First Tube Amp Needs an Overhaul
  73. pspice models for tubes
  74. Source for iron cores?
  75. Quad EL84 SE question
  76. Use of 12j1l and gu-50 tubes
  77. Shuguang 300B-98C
  78. Philips AG-9016 Upgrades???
  79. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  80. tube amp in a PCB with a toroidal xformer beside it?
  81. Need advice running 220v in USA
  82. My Fender Princeton FD2 chasis (clone)
  83. Parallel-Push-Pull KT66 organ amp conversion ???
  84. new on tubes
  85. Balance 5687 pre-amp any advise??
  86. The Limitations of an EL34 in UL
  87. Source for tube bases....?
  88. 10Y, 26, 27 and 45: relative microphonics
  89. KT77 Mod Question/Idea/Punshishment
  90. KT88 SE with Edcor xfrmr
  91. Diy Distortion Pedal
  92. 45 fans expanded horizons upstream?
  93. 12B4a Cathode Follower
  94. Hybrid voltage doubler using tube and diode
  95. Finally finished my first tube amp!
  96. advice on an EL84 Push pull Amp schematic
  97. Vintage radio
  98. Look for 12AU7 Preamp Circuit .
  99. PSU question? Going tube rectified
  100. PSU Rebuild Help Pleas
  101. Screeching tubes
  102. help in adjusting Vout in the power supply of the "Brute force in a line stage" by Er
  103. Fisher 800 restoration
  104. stern's ecl86 amp
  105. Look for Western Electric KS-16547-L1 circuit diagram
  106. Help about grommes 500C
  107. Dynaco MK III with 6146A tubes.
  108. Volume pot for Musical Fidelity F22 pre amp.
  109. Don't you just hate it when
  110. Bogen 8417 tube conversion..?
  111. How to Build Unbilical from PS to Phono
  112. Class A SET preamp, help
  113. Grounding MFA Luminescence
  114. custom transformer manufacturers (potted if possible)
  115. To Recap - A Question
  116. KT 44 anyone tried these
  117. Volts AC rating in power supply caps
  118. unfamiliar tube brand
  119. power supply schematic with a 6080 used as a "pass tube"
  120. Electro-Vox LA-210 Preamp; tube
  121. why so CHEAP!?
  122. Antique Electronic Supply
  123. Best Use For My Sansui Iron?
  124. Help on AMC CVT 3030
  125. Heathkit W-5M Red Plate Issue
  126. 1st Post (here) : ) My first project: Boozhound Amp
  127. regulated DC heater supply
  128. Help me pick up some good tubes! Urgent!
  129. CLCRC power supply config
  130. Choke Replacement Question.
  131. What tube instead of 7189
  132. Help on PP EL 34 from Claus Byrith
  133. Datasheet of PTT4 tube?
  134. ready to give up
  135. O-Ring sizes for Tube Dampers
  136. preamp /amp combination question
  137. Strange Transformer Question.....
  138. Audio Note M3/4/5/6/8 schematics
  139. Lundahl LL1540 for SY's heretical?
  140. Henrys
  141. 955 Acorn tubes
  142. Do you know these Ampex mono Amps
  143. Audio Research Resistor Type
  144. What's the best low wattage guitar amp?
  145. volume issues
  146. Need advice for best CCS
  147. confusion in the resistor/capacitor values and B+ supply for the aikido
  148. What are the diferences between these ways of output?
  149. PS for tube preamp
  150. what resistors are in the aikido signal path
  151. clarification of aikido heater supply
  152. Audio Note schematics
  153. Data for PE08/40
  154. PA-060 use
  155. Anode loaded 6080 giving less than unity gain, Why??
  156. Frustration with hum and noise in guitar tube amp
  157. 3/8in thick acrylic - would this make a good chassis?
  158. 6c19p Se?
  159. CF and SRPP in one circuit . .
  160. WE417/437 with battery or RC on cathode
  161. Building a Preamp:Dual Outputs Question
  162. Audio Note Conquest?
  163. metallized caps instead of electrolytics in a tube rectifier power supply?
  164. Power transformer as Parafeed output?
  165. Bogen amp
  166. Noob question about plate load
  167. adjusting gain?
  168. Lowering HT
  169. Kaneda hybrid preamp error ?
  170. Match priorities to schematic & toobs
  171. what do you think of this integrated?
  172. Modified Audio Note M7 Tube Pre Amplifier PCB
  173. lundahl xformers - are they potted?
  174. Beginner's very simple line pre-amp
  175. UX-226 Preamp
  176. Difference between microphones
  177. sv572-30, where to find
  178. E182CC - how to connect heater supply?
  179. Aikido pre tube for Minimum Gain
  180. 14gt8...clipping diodes?
  181. HPHV regulator
  182. Grounded Grid
  183. NYAL Super-It - removing volume pots, what resistor value to replace them?
  184. Another Bogen Conversion
  185. Trouble with my "new" PAS-3 Preamp
  186. Tubalizer, Monica
  187. musical angel modified marantz 7 preamp schematics
  188. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  189. Solder directly on tube?
  190. article in NY Times on Russian tubes
  191. Sovtek's sad tale
  192. audio research LS25 preamp
  193. Schematic needed PL519 Push-Pull Ultra-Linear amp
  194. Use 6C19 in a phono amp?
  195. 6L6 Push pull -- Power tranny question
  196. INPOL technology. Duh.
  197. Transformer problem
  198. Anyone tried a hi-voltage project as their first?
  199. Schematic needed PL519 Class A SE
  200. Giaime's new toy - aka the UniOctal
  201. Critique my circuit?
  202. New EC8010-VT52 Amp
  203. EL84/6BQ5 triode pp with no cathode biasing
  204. EL34 Push Pull in Class A
  205. In search of tube audiophile in Dhaka, Bangladesh
  206. Passive preamp with utc transformers
  207. RGN rectifiers in PSUD2...
  208. Power amp harmonics ?
  209. bypass tone controls on heathkit sp-2
  210. PS Caps
  211. Doubts on cathode stripping in tubes
  212. Edcor amplifier --> 6l6 PP
  213. Welborne labs phono stage needs help, got killed in power surge last night
  214. Huge OPT and small tubes
  215. UTC technology
  216. Luxman 38FD schematic
  217. EL84 PP Diy. Pls help me!!!
  218. Wurlitzer amplifier needs help
  219. Grounding case of 6J5
  220. Tube HW question from a software guy
  221. 12AU7 tube preamplifier schema
  222. "Improved RIAA by Jax"-Power supply help needed!!!
  223. OT Overload question
  224. V76
  225. Application of 6877 ?
  226. First nos tubes
  227. Looking for tube sockets
  228. Input transformers impedance questions
  229. Hybrid amp schema?
  230. Hybrid Cascode ?
  231. Interstage topology question
  232. raccomandation with valve amps
  233. Power Transformers in Output!
  234. How do I design "SCREEN GRID DRIVE"
  235. My El34 SET
  236. Ancient Bogen 807PP Amp-Guitar
  237. Schematic needed 811a Class A2
  238. Power transformer from Tek545 'oscope
  239. Agape Audio Labs
  240. ETF06 - A century of good sound
  241. I completed my amp!
  242. Overload recovery
  243. Converting SS eq. to Tube
  244. oscillation
  245. Tube preamp with: 1V in and 15Vout???
  246. Electrolytic Cap Search
  247. Bibster's 5687 Linestage, the return
  248. Anyone know anything about Morreto amps?
  249. Determining Output Power
  250. Turn on static?

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