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  1. EF80 vs EF86
  2. Decware MODEL SE84C-DIY
  3. ST35 voltages WAY too high!
  4. How Do "Heat Fins" Work In a Vacuum?
  5. Acrosound Ultra-Linear OT catalog
  6. Simple Questions: Diodes and Heaters
  7. Recommend an input stage triode please
  8. Copper patinization?
  9. V-m 560a
  10. Anybody dealt with high-endstore.com?
  11. Diodes On Rectifier Question
  12. Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
  13. looking for a website...
  14. Simple 45/2A3 schematic error?
  15. Plate load for push-pull
  16. Hybrid regulator
  17. Hybrid Graetz Bridge
  18. My first amplifier - 6n3c-E
  19. Power supply problem
  20. Grid choke as I/V?
  21. Hammond PR20
  22. 6JN6 screen-drive (g2 driven) plate curves?
  23. Another compactron PP output
  24. 6922 transformer coupled
  25. Beam Deflection Tube Limiter
  26. 6LW6 bias points
  27. Dynaco SCA-35 or Sherwood S5000 iV
  28. EL821 / 6CH6 triode curves?
  29. Ground wire adds hum to Harmony H-400A AC/DC amp
  30. "magic" phase splitter for SimpleP-P
  31. Harmon Kardon tube amp kit testing
  32. Did I hurt this capacitor?
  33. (newb) Why no white (-) leads on power trafo
  34. Ruined transformer?
  35. My Tabor Clone is finished.
  36. first build 6em7 and it works
  37. Cleaning up baked enamel/painted finishes
  38. Highs roll off
  39. scratch build EAR834p
  40. El156se
  41. One more hybrid idea
  42. Can Anyone figure this?
  43. "Mighty Mite" Single Ended Amplifier
  44. old question - lost answer 6AS7 SE amp
  45. My KT88 SE project
  46. Motorola OPT
  47. Weird Input transformer hum.
  48. cascode vs asymmetrical cathode coupled
  49. music angel 845 SET
  50. Help! My amp stopped singing...
  51. LTP CCS IXYS with 10m45s opinions
  52. Boozhound Choke Tail Pair for HiFi
  53. 5718 subminiture tube?
  54. fixed bias for push pull tube amps
  55. EC86 and phono
  56. Power Transformer mystery lead....
  57. Bias measurements 6L6
  58. 0A3 Light
  59. Equivalent to Tango NC-10 IT
  60. Ammeter wiring?
  61. Highest Practical Primary Z in OPT?
  62. Ampex 6v6 PP Modifications
  63. Variability of RIAA eq with tube characteristics?
  64. 807/350B/6L6 PP amps PSU ?
  65. Need Help For Tube Amp
  66. ECC83 300B Loftin White amp
  67. Hashimoto and the wonderful 45
  68. Heathkit variac
  69. E80L pentode mode as driver?
  70. Transformer repair
  71. How many ga for chassis wire?
  72. I want to MOD - help?
  73. What About Beam Deflection Tubes?
  74. Placement of Ultralinear Tap On Homemade Transformer
  75. Differential stage with CCS in cathode
  76. Directly heated Cathode/insulation question
  77. "Dirt Cheap SE" 6BM8 spud amp
  78. Single-end Power amp with tubes
  79. Input pot question
  80. Need help putting 6Z4 into PSU Designer
  81. SimpleSE Under Chassis Mounting
  82. Bias methods?
  83. Aikido and SE KT88
  84. Built this pre amp today!
  85. Mystery tube in a Fisher FM-90X - V50,064
  86. Switch contacts for HV supply
  87. The First Sound Recording - we can hear it finally
  88. RCA made in Japan???????
  89. 6V6GT in the SimpleSE
  90. trimmings for amp project
  91. Tube Preamp Hybrid new builder, lots of question!
  92. Chinese mini bias pots
  93. GU-50, GM70 and KT88
  94. Please recommend me an amplifier design.
  95. Single-ended OR push-pull?
  96. Darling in Europe... (110 vs. 220)
  97. DC heater (+/-) -> elevated?
  98. Yaqin MS-300B SET amp
  99. Sonics of a "dynamic coupled" driver
  100. ELL80
  101. Will this work?
  102. What circuit to build with MQ TL-404
  103. Very low output from Knight KN928 amp
  104. 6GK5 to drive a 6AS7?
  105. Plate Heater Dissipators
  106. preamp suitable for Dynaco st-70- OTHER than dynaco
  107. 'EL34 World' website for music amps
  108. is this possible?
  109. Power transformer impedance
  110. The days of wine, roses & WE205D
  111. I need to ask...
  112. SPICE model for 6AK5 wanted!
  113. Differences with 6C33 Tube Types
  114. mugen hybride
  115. 1st Build - Kit or No Kit
  116. feedback problems
  117. Antique Electric Supply
  118. Highs
  119. ELK bass amp, mono, twin OPT's (?)
  120. Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP?
  121. Suggestions on books
  122. Cathode stripping in low voltage tubes
  123. Current to overcome 6.5 uuF input capacitance?
  124. Help me to work on the damping factor of my 845 SET
  125. Y A A B - Yet Another Aikido Build
  126. Music Angel - Help wanted
  127. Calculating PS current for octal Aikido
  128. X-10d
  129. wirewound vs standard pots
  130. Anyone famaliar with the 485 tube?
  131. Ideas for ground plane/shielding?
  132. TESLA E88CC 6922 Tubes shorting out???????
  133. Will My Ipod Benefit Through a Tube Amp?
  134. PSU for testing circuits
  135. Combine left & right for sub
  136. Noisy Squeal from SE amp
  137. Plate Choke calculation
  138. Audio Cable Deathmatch!
  139. replacing op-amps with thermionic valves
  140. aikido heater
  141. Heathkit W 5M output transformers
  142. 6S19 Circlotron (OTL)
  143. Quality of Hammond 1600 series transformers and a question about loading.
  144. Kuei Yang Wang's 6sn7 linestage
  145. E-mu 0202 + audiotester
  146. Where to buy HT toroids ?
  147. CJ 1.4: Power tubes are working but drivers not ! Help please.
  148. A 6SN7 direct coupled preamp & regulated supply for everyone's perusal.
  149. Slight hum from my new soldering station.
  150. phono stage
  151. 6sn7gtb problem
  152. The old man told me to get it all out of the basement
  153. The Look of Preamp Hum
  154. hookup wire options
  155. Testing Amplifiers / Pad
  156. Which tubes should I use?
  157. KT88s and grid current
  158. Gain stage with g2-feedback.
  159. K-502 Left Channel is out
  160. 12B4 help needed
  161. Power Trans question
  162. Noob amp wiring question...
  163. 5842 - russian ripoff
  164. Ruskie tube questions
  165. Opt placement
  166. 807 AB2 oscillation maybe?
  167. Amazon Does DIY Parts
  168. Shielded wire
  169. Questions about Tube Amplifiers, Mikael's vs SimpleSE
  170. Where low noise resistors matter
  171. funky power supply
  172. Choke loaded PSU versus VR tube regulated PSU?
  173. What would most of you do?
  174. IRFBC20 as source follower drivers for EL34s in AB1 PP
  175. first post, PS for 6em7 SET amp
  176. affordable transformers for KT-88's
  177. Need help with schematic
  178. How many people here use simulators, like LTspice, to help design tube stuff?
  179. newbie question regarding gain reduction
  180. Anybody did try this tube preamp ?
  181. Heathkit UA-2 output tx wiring question
  182. Question about the properties of "matched" tubes
  183. Using a passive direct box to kill ground loop noise?
  184. magnetized power transformer!
  185. Utc A-24
  186. lower cost options for spectrum analyser/ function generator?
  187. Need schematics for Val VP-110S Tube Amp
  188. So What now
  189. What other tubes can I use this OPT for?
  190. Super Junkbox 6S19P SET
  191. Grid stopper resistors
  192. Please evaluate my new EL34 Amp (waveform attached)
  193. Max voltages for EL84?
  194. Oscilloscope Probes for Tube Work
  195. ECC88 vs 6SN7
  196. Good (tube) audio shows in the US?
  197. Please help me de-hum my new pre
  198. Help for newbie
  199. Simple ReAmp Mod? Help with Input Impedances, Please!
  200. Which of these two phono stages
  201. Crosley radio
  202. Small tube amp for headphones/computer speakers?(first post)
  203. Peculiar Fisher circuit
  204. Hum in Grounded Grid Pre
  205. Counterpoint SA-1000
  206. K-502 How to select a potentiometer
  207. What are these Christmas light things?
  208. a CHEAP integrated tube amp kit-anybody?
  209. My amp is acting like a transducer!?
  210. Transformer current question
  211. Brimar date codes?
  212. Home made SE 300B amp
  213. Parallel Push Pull 6AS7 or 6080
  214. random crackle ? (McMartin MA-20)
  215. KT88 filament failure - twice on same socket
  216. Solid State Regulator for tube amp
  217. Proposed screen-drive amp design... comments, please?
  218. Any good explanation of Passive EQ Filters??
  219. terraplane 300B
  220. Sun Audio transformers
  221. Vacuum State RTP5.
  222. Schematics for Audio Innovations s1000 pre
  223. Tube amp for newbye
  224. 3C24SE amp...
  225. Meixing MingDa MC767-RD
  226. confusing transformer connections
  227. Have to mod K-502 to 4Ohms from 8
  228. SOund of 3B28 vs. 866A
  229. S3E Vacuum Tube
  230. Tube audio & "3 dimensionality"
  231. Darling monoblocks
  232. Testing 350B with B & K 747A
  233. Interstage transformer for balanced amp question
  234. Filament transformer questions
  235. dBm or dBV Audio Voltmeter
  236. VTL MB250 Signature monoblock Manual..
  237. Choke phase spliter
  238. Output transformer DC resistance..
  239. Chassis layout?
  240. Jolida schematic questions
  241. Tube Phono preamp kit?
  242. Does size really matter - SE Output
  243. 437A testing
  244. What to do with a 5k output transfomer?
  245. adapter?
  246. Studer 52
  247. Safety ground question
  248. Old PS questions (EL34 replacement), and any Aus people know BWD?
  249. Darling 1626 amp
  250. Blackheart 5 watt

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