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  1. el84 amp
  2. VIETA A-215 Schematics
  3. 6AR6/6098 ultralinear
  4. Tube kit for beginner
  5. earthing!!!!!!!!!!
  6. Heating only one half of a double triode
  7. Quick question regarding PSU Designer II
  8. calculate +B in EL34 SE triode conect
  9. Help with driver transformer
  10. Tube buffer for a cd player
  11. VSE riaa equalizer phono stage
  12. AC or DC Heater?
  13. looking for a good valve amp to fix
  14. Best operating point for 7044 and 5687
  15. S&B TX102 and preamplier stages
  16. I need help
  17. 6AS7 Mono Block's
  18. Filter/Regulator for B+ Supply
  19. Ecf 83
  20. cheap but good SET amplifier?
  21. DRD calculator
  22. Luxkit A1020 need help!!!
  23. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  24. benifits of auto bias
  25. KR Enterprice
  26. Preamp Boards From Hong Kong
  27. earthing
  28. Best sounding medium priced EL34 tube?
  29. 6CA5 Rectifier - B2Spice Model
  30. Help needed for a 6L6 Push pull amp
  31. constant current filament regs
  32. 6SN7 Basics (Newbie)
  33. Anyone tried the EH fat bottle 6CA7?
  34. TJ Tubes
  35. My tubes are going down. HELP !!!!
  36. Tino Zottola...where are you ?
  37. Lilliput amp
  38. filament rails
  39. Ss Diodes??
  40. Tube mic preamp
  41. CCS Filament Regulators for split filaments
  42. Quicksilver 8417 power supply caps?
  43. Audio Research LS7
  44. simple valve preamp
  45. valve preamp
  46. stand by switch or not?
  47. Omega Grand 6 and which amp?
  48. Line amp to speakers
  49. a bit more bass?
  50. Output transformer application help please.
  51. 5687 pre...some problems
  52. Recommendations needed for designs of PP pentode strapped as Triode
  53. KT88 push pull noob questions (sry)
  54. Need help identifying Stromberg Carlson Amp
  55. help needed diagnosing Grounded Grid power supply
  56. Building a tube Model????
  57. EL34 best for triode strapping ?
  58. Subwoofer amp
  59. Replacing Valves
  60. help me on 845 scheme....
  61. Help valve newb salvage some old TV tubes
  62. Cathode follower distortion results
  63. Bullet Proof 6L6GC Recommendation PLEASE
  64. newbie recomendations please
  65. NOS Tubes
  66. Audio Research CA-50 tube rolling
  67. OT on Decaware SE84C-S
  68. Change PP Amp Into Phono Pre?
  69. pl84 ore el84
  70. VTL Compact 100 Monoblock x 2.
  71. Battery bias a 6SU7 in the 300b billies
  72. Speaker impedance roughly 6 ohms, 2A3 SET...
  73. B2 Spice SE tranformer parameters
  74. Determining cap values (old radio)
  75. thoughts on 300b operating points with 3k output
  76. Grounded Grid wiring question
  77. PP-Triode , PP-UL , PP-Pentode-strapped-as-Triode
  78. Found some EC8010
  79. SE PX4 or PX25 amp, anyone built one????????
  80. HAL-O Damping Instruments
  81. An intriguing 6S45P direct coupled 300B amplifier
  82. difference between Cayin and Jolida
  83. 417a line preamp help
  84. kenwood trio el84 push pull schematic
  85. Any comments on this design?
  86. Amp for speaker testing
  87. Shielding preamp power supply
  88. Troubleshooting EL34 push pull amp
  89. amp input volume
  90. What Mullard 12AX7 is better?
  91. Universal audio / Avalon mic pre schematics
  92. Since transconductance amps has become so popular lately...
  93. Mecanical PSU hum
  94. help i.d. this amplifier
  95. Question about a hybrid PSU design
  96. 35Z5GT half-wave rectifier
  97. Riviera 725 guitar tubes amp
  98. Best place to use 2 Jupiter Bee caps in tube amp?
  99. what rating for diode of 450Volts DC
  100. Telefunken 6L6GC ???????
  101. Why are my amps doing this?
  102. How to calculate the gain of an input-driver stage?
  103. 6L6 vs EL34
  104. protect your amps
  105. Snap Ring Octal Sockets
  106. Suitable operating point for 6SN7 as a differential driver ?
  107. Suitable rectifier
  108. 6N1P & SV83 mu stage driving 845?
  109. Has anyone built a transformer coupled preamp?
  110. Circuit diagram for RCA vintage 6BQ5 amplifier?
  111. Driver valve discussion
  112. Help to choose the tubes!
  113. Why hum in one channel only?
  114. DC heater noise WORSE than AC
  115. Rdh 4
  116. 900v B+ Silly time.
  117. tube rectifier arrangement
  118. Matrix Amp?
  119. Dynaco Stereo 70 amplifier
  120. Ultimate power switch?
  121. AC or DC current for 300B and 2A3 tube filaments ?
  122. 0.1uF @ 3000V Ceramic?
  123. Power Triodes in current production
  124. Anyone in the world identify eico trans?
  125. Mullard 5-20 in triode mode
  126. THX certification, or integrated near THX Quality,
  127. Feedback resistor on Baxandall tone stack?
  128. SE Pentode or PP Triode ?
  129. how does one "voice" a tube amp
  130. Musical fidelity Nu-Vista
  131. Tube substitutions in Heathkit W5M
  132. PSUD2 question
  133. 6L6 class A P-P CFB amp
  134. i have a matched pair of 3cx1000a7..
  135. Different silvering patterns on tube tops?
  136. Designing Guitar Amp's Project
  137. Help with amp rebuild
  138. Mystery (to me) phase inverter?
  139. Biasing
  140. SE KT88 Amp
  141. Good design?
  142. Auto Biasing
  143. nuvistor MC step up
  144. Corian for tube amp?
  145. 6AQ5 Line stage?
  146. 6550 o/p stage
  147. Help with finding preamp schematic
  148. AVO data for 8417 (Quicksilver) tubes
  149. Any experience with this nice toroidal OT?
  150. 300B SE cathode feedback to grid?
  151. hummmmmmm?
  152. ERO KP1832 Bypass Caps for sale
  153. no bass makes pedro a whiny boy
  154. Iron, glass, sand and lead.
  155. Is this any good? Considerations
  156. 2A3 SET Output Transformer opinions/recommendations
  157. My 6C45 DC 6C41, advice wanted
  158. DIY valve
  159. A good SE project?
  160. who will build me this special "line tubeamp"
  161. PI filters
  162. Designing a simple dc filament supply?
  163. Rogers Cadett amp
  164. HI & a few words/questions ...
  165. 6d22s
  166. eBay
  167. Chassis layout for Stereo JE Labs 300BDX
  168. Output transformer help
  169. CAD Program for Tubes
  170. 801A/816 tubes wanted
  171. This little thing might save your life!
  172. What happens if I loose the cathode bias?
  173. beginners ecl82 power supply
  174. 2MHz, High voltage source?
  175. beginner's ecl82
  176. Handmade Electronics Metal Punches?
  177. EL34 types
  178. Spice Model 6CW4
  179. El/pl 519
  180. Euridice symetric to Amp?
  181. use of 6dj8 as driver on a direct coupled 2a3 se amp
  182. Western Electric 275A Schematic
  183. Where to source 833 power tube
  184. capacitor reactance
  185. Overvoltaging resistors
  186. EL84 Push Pull amp.
  187. Power supply load capacity
  188. Tube preamp problem
  189. E88C (6DL4/ 8255), any circuit for it?
  190. Is there a name for this drive method?
  191. 6BM8 Question
  192. Tube mic preamp/mixer
  193. Please cast your votes..or make a suggestion or 2
  194. RIAA in LTspice
  195. Parallel ECC82 comment please
  196. A push-pull amp i can live with
  197. Sub-miniature russian amp help
  198. Tube Optical-Isolation Unit
  199. MKP in the Powersupply.
  200. 6SN7-GTB Globe (Chinese)
  201. 12BH7 Specs
  202. Is this worth my time?
  203. choke value
  204. ipod + tubes
  205. Leak tl/25+ OPT selection
  206. Gabevee's Maggie (MAG1515)
  207. Can partial feedback be as effective as global fb for decent damping factor?
  208. Which trans wire is which?
  209. What's wrong with this tube?
  210. F: great sound control with ECC82
  211. 30W UL 6L6P-P amp
  212. 300B stereo SE amp and PP2A3 monoblocks
  213. 6S45P matching
  214. Inductors made for crossover in an amp?
  215. PX4 or AVO44 or AV044 based SETA
  216. power conditioning
  217. Microphone preamp with compressor
  218. Current production rectifiers
  219. mu stage help...
  220. Non-Polar caps to cathode bypass
  221. 5u4 / solid state switchable supply
  222. 12AX7 sound ... going with the trend
  223. 6L6 PP Design Recommendations?
  224. EL 34 30W ultra linear
  225. Convert Audion Silver Knight PP monos
  226. Too much gain
  227. The long lost linear gain stage
  228. Philco power tranny diagram/5u4 supply
  229. Kt88 Se
  230. supersize me, please. (powersupply)
  231. Seeking advice on "Circlotron" cross-coupled feedback OTL design
  232. Best 6CA7?
  233. ECC99 line preamp
  234. coupling caps???
  235. variable regulated negitive grid supply
  236. hum loop advice
  237. Against all odds...
  238. 6as7 se amp
  239. Help .. tube amplifier .. 1st !
  240. winding a toroidal pp output
  241. solid state Vs Tube Rectification
  242. Cryoed Tubes...what To Expect?
  243. I'm looking for 6H13C tubes
  244. Which ST-70 ?
  245. Some questions about Van Scoyoc X-coupled splitter
  246. Quicksilver 8417 bias runaway?
  247. Most effective use of valve pre & active xover
  248. Tube possibilities for 2.9k-ohm speaker?
  249. Help on Preamp Mute Switch
  250. Fixed bias supply problems...

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