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  1. Problem with my ST70 build
  2. S-5 16LS tube amp use with 8 ohm speakers
  3. Yaqin 300b
  4. I'm going in.....
  5. noisy rectifier tube
  6. Quad II Output transformer rewinding question
  7. screen-drive (g2 driven) plate curves spacing linear!
  8. Strange feedback method
  9. Trio W-45a Amp-
  10. Hammond Power Transformer Buzz...
  11. 6v6 push pull guitar amp schematic sought
  12. Tube DI Help, Please: Substitutions
  13. Harmon Kardon Galaxy BA-150
  14. Velleman K8010 monoblock tube amplifiers
  15. First Project Finished-Tubelab Simple SE
  16. My 6S19P Linestage
  17. EL34 recommendations
  18. Edcor CXPP100-MS-5K- anyone used this (or similar 100W) output transformer?
  19. Bypass 2x0B3 tube cap value ?
  20. EF80 vs EF86
  21. Decware MODEL SE84C-DIY
  22. ST35 voltages WAY too high!
  23. How Do "Heat Fins" Work In a Vacuum?
  24. Acrosound Ultra-Linear OT catalog
  25. Simple Questions: Diodes and Heaters
  26. Recommend an input stage triode please
  27. Copper patinization?
  28. V-m 560a
  29. Anybody dealt with high-endstore.com?
  30. Diodes On Rectifier Question
  31. Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
  32. looking for a website...
  33. Simple 45/2A3 schematic error?
  34. Plate load for push-pull
  35. Hybrid regulator
  36. Hybrid Graetz Bridge
  37. JCM 900 100 Watt Power Trans Specs..
  38. My first amplifier - 6n3c-E
  39. Power supply problem
  40. Grid choke as I/V?
  41. Hammond PR20
  42. 6JN6 screen-drive (g2 driven) plate curves?
  43. Another compactron PP output
  44. 6922 transformer coupled
  45. Beam Deflection Tube Limiter
  46. 6LW6 bias points
  47. Dynaco SCA-35 or Sherwood S5000 iV
  48. SE 6550 class project (continued)
  49. gibson amp lp JR
  50. EL821 / 6CH6 triode curves?
  51. Ground wire adds hum to Harmony H-400A AC/DC amp
  52. "magic" phase splitter for SimpleP-P
  53. Harmon Kardon tube amp kit testing
  54. Did I hurt this capacitor?
  55. (newb) Why no white (-) leads on power trafo
  56. Ruined transformer?
  57. My Tabor Clone is finished.
  58. first build 6em7 and it works
  59. Cleaning up baked enamel/painted finishes
  60. panel meters
  61. Highs roll off
  62. scratch build EAR834p
  63. Silvertone Organ Amp
  64. El156se
  65. One more hybrid idea
  66. Can Anyone figure this?
  67. "Mighty Mite" Single Ended Amplifier
  68. old question - lost answer 6AS7 SE amp
  69. My KT88 SE project
  70. Motorola OPT
  71. Weird Input transformer hum.
  72. cascode vs asymmetrical cathode coupled
  73. music angel 845 SET
  74. Help! My amp stopped singing...
  75. LTP CCS IXYS with 10m45s opinions
  76. Boozhound Choke Tail Pair for HiFi
  77. Bass guitar amp...
  78. 5718 subminiture tube?
  79. fixed bias for push pull tube amps
  80. EC86 and phono
  81. Power Transformer mystery lead....
  82. Bias measurements 6L6
  83. 0A3 Light
  84. Equivalent to Tango NC-10 IT
  85. Ammeter wiring?
  86. Highest Practical Primary Z in OPT?
  87. Ampex 6v6 PP Modifications
  88. Variability of RIAA eq with tube characteristics?
  89. 807/350B/6L6 PP amps PSU ?
  90. Need Help For Tube Amp
  91. ECC83 300B Loftin White amp
  92. Hashimoto and the wonderful 45
  93. Capacitor identification–old PIO?
  94. Heathkit variac
  95. E80L pentode mode as driver?
  96. Transformer repair
  97. How many ga for chassis wire?
  98. 807 Guitar Amplifier
  99. I want to MOD - help?
  100. What About Beam Deflection Tubes?
  101. Capacitor
  102. Placement of Ultralinear Tap On Homemade Transformer
  103. Differential stage with CCS in cathode
  104. Directly heated Cathode/insulation question
  105. "Dirt Cheap SE" 6BM8 spud amp
  106. isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
  107. Single-end Power amp with tubes
  108. Input pot question
  109. Need help putting 6Z4 into PSU Designer
  110. SimpleSE Under Chassis Mounting
  111. Bias methods?
  112. Aikido and SE KT88
  113. Built this pre amp today!
  114. Mystery tube in a Fisher FM-90X - V50,064
  115. Switch contacts for HV supply
  116. The First Sound Recording - we can hear it finally
  117. RCA made in Japan???????
  118. 6V6GT in the SimpleSE
  119. trimmings for amp project
  120. Tube Preamp Hybrid new builder, lots of question!
  121. Chinese mini bias pots
  122. GU-50, GM70 and KT88
  123. Please recommend me an amplifier design.
  124. Single-ended OR push-pull?
  125. Darling in Europe... (110 vs. 220)
  126. DC heater (+/-) -> elevated?
  127. Tubelab simple SE help needed...working but only on one channel
  128. Yaqin MS-300B SET amp
  129. 300b calibration (tubelab)
  130. Sonics of a "dynamic coupled" driver
  131. 716p's Vs. Fancy Caps
  132. ELL80
  133. Will this work?
  134. What circuit to build with MQ TL-404
  135. Very low output from Knight KN928 amp
  136. 6GK5 to drive a 6AS7?
  137. Plate Heater Dissipators
  138. preamp suitable for Dynaco st-70- OTHER than dynaco
  139. 'EL34 World' website for music amps
  140. Strange Russian(?) tube tester
  141. is this possible?
  142. Power transformer impedance
  143. Anybody did compared tube vs opamp for preamp ?
  144. The days of wine, roses & WE205D
  145. I need to ask...
  146. SPICE model for 6AK5 wanted!
  147. Differences with 6C33 Tube Types
  148. mugen hybride
  149. 1st Build - Kit or No Kit
  150. feedback problems
  151. Antique Electric Supply
  152. Highs
  153. ELK bass amp, mono, twin OPT's (?)
  154. Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP?
  155. Suggestions on books
  156. Cathode stripping in low voltage tubes
  157. Current to overcome 6.5 uuF input capacitance?
  158. Help me to work on the damping factor of my 845 SET
  159. Y A A B - Yet Another Aikido Build
  160. Music Angel - Help wanted
  161. Calculating PS current for octal Aikido
  162. X-10d
  163. wirewound vs standard pots
  164. Anyone famaliar with the 485 tube?
  165. Ideas for ground plane/shielding?
  166. TESLA E88CC 6922 Tubes shorting out???????
  167. Will My Ipod Benefit Through a Tube Amp?
  168. PSU for testing circuits
  169. easier way to cut a square hole for xmfr
  170. Combine left & right for sub
  171. Noisy Squeal from SE amp
  172. Plate Choke calculation
  173. Audio Cable Deathmatch!
  174. tubelab PP?
  175. replacing op-amps with thermionic valves
  176. aikido heater
  177. Heathkit W 5M output transformers
  178. 6S19 Circlotron (OTL)
  179. Quality of Hammond 1600 series transformers and a question about loading.
  180. Kuei Yang Wang's 6sn7 linestage
  181. Laney TF-200 speaker farts out...
  182. E-mu 0202 + audiotester
  183. Where to buy HT toroids ?
  184. CJ 1.4: Power tubes are working but drivers not ! Help please.
  185. A 6SN7 direct coupled preamp & regulated supply for everyone's perusal.
  186. Slight hum from my new soldering station.
  187. phono stage
  188. 6sn7gtb problem
  189. The old man told me to get it all out of the basement
  190. The Look of Preamp Hum
  191. hookup wire options
  192. Tubelab Simple Se Trannie Shopping List-a Newbie Seeks Info
  193. Testing Amplifiers / Pad
  194. Volume Pot vs Stepped Attenuater
  195. Which tubes should I use?
  196. KT88s and grid current
  197. Gain stage with g2-feedback.
  198. K-502 Left Channel is out
  199. 12B4 help needed
  200. Power Trans question
  201. Noob amp wiring question...
  202. 5842 - russian ripoff
  203. Ruskie tube questions
  204. Opt placement
  205. 807 AB2 oscillation maybe?
  206. Amazon Does DIY Parts
  207. Shielded wire
  208. Guitar amp(s) for nephews
  209. Questions about Tube Amplifiers, Mikael's vs SimpleSE
  210. duncan psu simulation vox ac30cc
  211. Where low noise resistors matter
  212. funky power supply
  213. Choke loaded PSU versus VR tube regulated PSU?
  214. What would most of you do?
  215. IRFBC20 as source follower drivers for EL34s in AB1 PP
  216. first post, PS for 6em7 SET amp
  217. affordable transformers for KT-88's
  218. Need help with schematic
  219. How many people here use simulators, like LTspice, to help design tube stuff?
  220. newbie question regarding gain reduction
  221. Anybody did try this tube preamp ?
  222. Heathkit UA-2 output tx wiring question
  223. Question about the properties of "matched" tubes
  224. Using a passive direct box to kill ground loop noise?
  225. magnetized power transformer!
  226. Utc A-24
  227. lower cost options for spectrum analyser/ function generator?
  228. Need schematics for Val VP-110S Tube Amp
  229. So What now
  230. What other tubes can I use this OPT for?
  231. Super Junkbox 6S19P SET
  232. Grid stopper resistors
  233. 1959 Pilot AA-908 Amp into Guitar Amp
  234. Please evaluate my new EL34 Amp (waveform attached)
  235. Max voltages for EL84?
  236. Tubelab SE finished but need help.
  237. Oscilloscope Probes for Tube Work
  238. ECC88 vs 6SN7
  239. Good (tube) audio shows in the US?
  240. Please help me de-hum my new pre
  241. Help for newbie
  242. Simple ReAmp Mod? Help with Input Impedances, Please!
  243. Which of these two phono stages
  244. Crosley radio
  245. Small tube amp for headphones/computer speakers?(first post)
  246. Peculiar Fisher circuit
  247. Hum in Grounded Grid Pre
  248. Counterpoint SA-1000
  249. K-502 How to select a potentiometer
  250. What are these Christmas light things?

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