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

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