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  1. Help with dead Jadis Defy7 Amp
  2. Bring test points to chassis - Tubelab
  3. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  4. Remote control for integrated tube amp
  5. EL34 pp "fixed" bias is wandering
  6. US sources Russian Surplus
  7. 6550 SE class project (continued)
  8. Convert RCA tuner/pre to high perf AM only
  9. Metal Can 6CA7s
  10. Bypassing B+ in PP amp
  11. Tube shunt regulator for phono amp
  12. Triplett tube tester help
  13. Motor run Caps Question
  14. speaker that can be driven by tube amp
  15. Which perf board?
  16. Looking for schematic/info for a Knight KN 3050 PA Amp
  17. Need help with volume control.
  18. Flame triodes!
  19. make OPT
  20. Tube GU50 made in Russia
  21. Expectations of new tube specs
  22. DC on preamp input
  23. We're up and going!
  24. Putting serial number on tubes
  25. Which of these tubes is best?
  26. Stepped attenuator resistor calculation software
  27. Help with PSU for tube DAC output stage
  28. single-tube (6GN8) amplifier?
  29. Dukane schematic needed
  30. Bloody pinouts!
  31. Testing 5651WA on the bench
  32. phase splitter concerns ?
  33. phono pre RIAA 2001
  34. Quick output transformer wiring question
  35. Can I.....
  36. Cathode FB P.P. Strange behaviour.
  37. Historic Valve Assembly Vids Mullard Content
  38. Unknown output impedance
  39. Any matching in 12AT7 sections? (SimpleSE)
  40. Over-voltage on heaters...
  41. Stray capacitance of CCS
  42. CCS Design for DHT Filaments
  43. coupling cap value help for tubelabSE
  44. YAQIN MC-10L to Klipsch B-3 Speakers
  45. Sonic effects of tubes
  46. Gubin Valve Stereo Amplifier Question
  47. 6J5 Shootout - which one's best?
  48. Chinese Tube Amps?
  49. 26 DHT users please comment on what you built & use.
  50. Guitar amp project report
  51. auricap Vs musicap (Another Cap Question)
  52. Help with splitter design for 7591 PP
  53. Question regarding PS ripple in guitar amps - TubeLab?
  54. Tron Seven
  55. blue glow on one channel
  56. Suitable Power Trans for 6gw8/6bm8/el84
  57. Dynaco Pas 3 Hiss from HV regulator
  58. PS Problem: How do I Reduce Voltage?
  59. Got the build itch again. 80w kt88
  60. lm317 CCS question
  61. LM334z
  62. Parafeeding a Tetrode
  63. Differential stage biasing choice
  64. Got an overshoot problem.
  65. Help! What could possibly be wrong?
  66. Noise - 6J5 - 71a -300B amp
  67. crude, simple and powerful PP-amplifier
  68. What's the appeal of type 80 rectifiers?
  69. Guitar amp layout second thoughts
  70. 6N7 PP amplifier
  71. 300 KW tube audio amplifire-modulator
  72. Weird amp on ebay
  73. which type of rubber cushion under transformers?
  74. 12at7 LTP CCS
  75. Which value of a potentiometer
  76. Strange circuit - heater hum opt feedback?
  77. Aikido question
  78. Tubelab SE diode substitute
  79. Copland CTA-402 Phono Section Comments
  80. modified sine wave power inverter
  81. Rebiasing my DSL-100
  82. My EL84 SE
  83. K-16LS kit Assembled and Working
  84. Claus Byrith 30W PP
  85. Aikido pre and class T amplifier ...for a newby
  86. Best replacement for Black Gate WKZ?
  87. DIY Jukebox!!
  88. Partial feedback confusion
  89. Anyone used the 7C7 loktal pentode?
  90. Is vacuumtubes.net still in business?
  91. Rectifier Tubes
  92. music angel kt88 tube amp schmetic needed
  93. Next project suggestions
  94. Unpotted Peerless 16309 OPT from Heath W5m
  95. 6au6 Cf
  96. Direct-Coupling Question
  97. Help on CCS PP differential driver stage for SE 845 amp
  98. I'm Looking for this Similar Schematic !
  99. ECL86 preamp critique please
  100. Low cost 6AV5 design questions (long)
  101. Got my tube spice models, and tubed CD player page back on the air
  102. Vsac 2008?
  103. How hot do Hammond chokes get?
  104. Transformer current question
  105. TubelabSE - best MOSFET choice?
  106. WTD: Reviewer/Writer For DIY Articles
  107. photomultiplier tube - what is this???
  108. Trace Elliot Tube replacment
  109. fun idea: cameras and tubes!
  110. Quicksilver
  111. EI-75 End Bells
  112. Svetlana vs. Winged C
  113. Tube Amp Links
  114. McMartin MA-20 mods
  115. Power-tube grid-leak bias
  116. Best/favorite CF NOS noval twin triode?
  117. How can I calculate voltage over cathode resistor?
  118. Grid bias with Class A SE ?
  119. QUADII with DHT
  120. My First Tube Amp
  121. RH84 vs Magnavox SE?
  122. Rectifier and amp heaters on one supply?
  123. OPT impedance vs. speaker
  124. Power Supply help
  125. Problem with Stealth clone (12A6)
  126. phono stage hiss
  127. Lafayette LT-100 and 6AQ8 tubes
  128. Input potentiometer selection
  129. VSAC 2008 Amp Class
  130. Searching for simple 12bh7/E80cc pre schematic
  131. filament AC vs DC
  132. Novice PS Question: Diode Dilemma
  133. Custom Power Transformer Supplier UK ?
  134. lowering AC heater voltage help?
  135. 60 hz hum, what causes those?
  136. Problem with my ST70 build
  137. S-5 16LS tube amp use with 8 ohm speakers
  138. Yaqin 300b
  139. I'm going in.....
  140. noisy rectifier tube
  141. Quad II Output transformer rewinding question
  142. screen-drive (g2 driven) plate curves spacing linear!
  143. Strange feedback method
  144. Trio W-45a Amp-
  145. Hammond Power Transformer Buzz...
  146. 6v6 push pull guitar amp schematic sought
  147. Tube DI Help, Please: Substitutions
  148. Harmon Kardon Galaxy BA-150
  149. Velleman K8010 monoblock tube amplifiers
  150. First Project Finished-Tubelab Simple SE
  151. My 6S19P Linestage
  152. EL34 recommendations
  153. Edcor CXPP100-MS-5K- anyone used this (or similar 100W) output transformer?
  154. Bypass 2x0B3 tube cap value ?
  155. EF80 vs EF86
  156. Decware MODEL SE84C-DIY
  157. ST35 voltages WAY too high!
  158. How Do "Heat Fins" Work In a Vacuum?
  159. Acrosound Ultra-Linear OT catalog
  160. Simple Questions: Diodes and Heaters
  161. Recommend an input stage triode please
  162. Copper patinization?
  163. V-m 560a
  164. Anybody dealt with high-endstore.com?
  165. Diodes On Rectifier Question
  166. Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
  167. looking for a website...
  168. Simple 45/2A3 schematic error?
  169. Plate load for push-pull
  170. Hybrid regulator
  171. Hybrid Graetz Bridge
  172. JCM 900 100 Watt Power Trans Specs..
  173. My first amplifier - 6n3c-E
  174. Power supply problem
  175. Grid choke as I/V?
  176. Hammond PR20
  177. 6JN6 screen-drive (g2 driven) plate curves?
  178. Another compactron PP output
  179. 6922 transformer coupled
  180. Beam Deflection Tube Limiter
  181. 6LW6 bias points
  182. Dynaco SCA-35 or Sherwood S5000 iV
  183. SE 6550 class project (continued)
  184. gibson amp lp JR
  185. EL821 / 6CH6 triode curves?
  186. Ground wire adds hum to Harmony H-400A AC/DC amp
  187. "magic" phase splitter for SimpleP-P
  188. Harmon Kardon tube amp kit testing
  189. Did I hurt this capacitor?
  190. (newb) Why no white (-) leads on power trafo
  191. Ruined transformer?
  192. My Tabor Clone is finished.
  193. first build 6em7 and it works
  194. Cleaning up baked enamel/painted finishes
  195. panel meters
  196. Highs roll off
  197. scratch build EAR834p
  198. Silvertone Organ Amp
  199. El156se
  200. One more hybrid idea
  201. Can Anyone figure this?
  202. "Mighty Mite" Single Ended Amplifier
  203. old question - lost answer 6AS7 SE amp
  204. My KT88 SE project
  205. Motorola OPT
  206. Weird Input transformer hum.
  207. cascode vs asymmetrical cathode coupled
  208. music angel 845 SET
  209. Help! My amp stopped singing...
  210. LTP CCS IXYS with 10m45s opinions
  211. Boozhound Choke Tail Pair for HiFi
  212. Bass guitar amp...
  213. 5718 subminiture tube?
  214. fixed bias for push pull tube amps
  215. EC86 and phono
  216. Power Transformer mystery lead....
  217. Bias measurements 6L6
  218. 0A3 Light
  219. Equivalent to Tango NC-10 IT
  220. Ammeter wiring?
  221. Highest Practical Primary Z in OPT?
  222. Ampex 6v6 PP Modifications
  223. Variability of RIAA eq with tube characteristics?
  224. 807/350B/6L6 PP amps PSU ?
  225. Need Help For Tube Amp
  226. ECC83 300B Loftin White amp
  227. Hashimoto and the wonderful 45
  228. Capacitor identification–old PIO?
  229. Heathkit variac
  230. E80L pentode mode as driver?
  231. Transformer repair
  232. How many ga for chassis wire?
  233. 807 Guitar Amplifier
  234. I want to MOD - help?
  235. What About Beam Deflection Tubes?
  236. Capacitor
  237. Placement of Ultralinear Tap On Homemade Transformer
  238. Differential stage with CCS in cathode
  239. Directly heated Cathode/insulation question
  240. "Dirt Cheap SE" 6BM8 spud amp
  241. isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
  242. Single-end Power amp with tubes
  243. Input pot question
  244. Need help putting 6Z4 into PSU Designer
  245. SimpleSE Under Chassis Mounting
  246. Bias methods?
  247. Aikido and SE KT88
  248. Built this pre amp today!
  249. Mystery tube in a Fisher FM-90X - V50,064
  250. Switch contacts for HV supply

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