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  1. Hashimoto and the wonderful 45
  2. Capacitor identification–old PIO?
  3. Heathkit variac
  4. E80L pentode mode as driver?
  5. Transformer repair
  6. How many ga for chassis wire?
  7. 807 Guitar Amplifier
  8. I want to MOD - help?
  9. What About Beam Deflection Tubes?
  10. Capacitor
  11. Placement of Ultralinear Tap On Homemade Transformer
  12. Differential stage with CCS in cathode
  13. Directly heated Cathode/insulation question
  14. "Dirt Cheap SE" 6BM8 spud amp
  15. isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
  16. Single-end Power amp with tubes
  17. Input pot question
  18. Need help putting 6Z4 into PSU Designer
  19. SimpleSE Under Chassis Mounting
  20. Bias methods?
  21. Aikido and SE KT88
  22. Built this pre amp today!
  23. Mystery tube in a Fisher FM-90X - V50,064
  24. Switch contacts for HV supply
  25. The First Sound Recording - we can hear it finally
  26. RCA made in Japan???????
  27. 6V6GT in the SimpleSE
  28. trimmings for amp project
  29. Tube Preamp Hybrid new builder, lots of question!
  30. Chinese mini bias pots
  31. GU-50, GM70 and KT88
  32. Please recommend me an amplifier design.
  33. Single-ended OR push-pull?
  34. Darling in Europe... (110 vs. 220)
  35. DC heater (+/-) -> elevated?
  36. Tubelab simple SE help needed...working but only on one channel
  37. Yaqin MS-300B SET amp
  38. 300b calibration (tubelab)
  39. Sonics of a "dynamic coupled" driver
  40. 716p's Vs. Fancy Caps
  41. ELL80
  42. Will this work?
  43. What circuit to build with MQ TL-404
  44. Very low output from Knight KN928 amp
  45. 6GK5 to drive a 6AS7?
  46. Plate Heater Dissipators
  47. preamp suitable for Dynaco st-70- OTHER than dynaco
  48. 'EL34 World' website for music amps
  49. Strange Russian(?) tube tester
  50. is this possible?
  51. Power transformer impedance
  52. Anybody did compared tube vs opamp for preamp ?
  53. The days of wine, roses & WE205D
  54. I need to ask...
  55. SPICE model for 6AK5 wanted!
  56. Differences with 6C33 Tube Types
  57. mugen hybride
  58. 1st Build - Kit or No Kit
  59. feedback problems
  60. Antique Electric Supply
  61. Highs
  62. ELK bass amp, mono, twin OPT's (?)
  63. Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP?
  64. Suggestions on books
  65. Cathode stripping in low voltage tubes
  66. Current to overcome 6.5 uuF input capacitance?
  67. Help me to work on the damping factor of my 845 SET
  68. Y A A B - Yet Another Aikido Build
  69. Music Angel - Help wanted
  70. Calculating PS current for octal Aikido
  71. X-10d
  72. wirewound vs standard pots
  73. Anyone famaliar with the 485 tube?
  74. Ideas for ground plane/shielding?
  75. TESLA E88CC 6922 Tubes shorting out???????
  76. Will My Ipod Benefit Through a Tube Amp?
  77. PSU for testing circuits
  78. easier way to cut a square hole for xmfr
  79. Combine left & right for sub
  80. Noisy Squeal from SE amp
  81. Plate Choke calculation
  82. Audio Cable Deathmatch!
  83. tubelab PP?
  84. replacing op-amps with thermionic valves
  85. aikido heater
  86. Heathkit W 5M output transformers
  87. 6S19 Circlotron (OTL)
  88. Quality of Hammond 1600 series transformers and a question about loading.
  89. Kuei Yang Wang's 6sn7 linestage
  90. Laney TF-200 speaker farts out...
  91. E-mu 0202 + audiotester
  92. Where to buy HT toroids ?
  93. CJ 1.4: Power tubes are working but drivers not ! Help please.
  94. A 6SN7 direct coupled preamp & regulated supply for everyone's perusal.
  95. Slight hum from my new soldering station.
  96. phono stage
  97. 6sn7gtb problem
  98. The old man told me to get it all out of the basement
  99. The Look of Preamp Hum
  100. hookup wire options
  101. Tubelab Simple Se Trannie Shopping List-a Newbie Seeks Info
  102. Testing Amplifiers / Pad
  103. Volume Pot vs Stepped Attenuater
  104. Which tubes should I use?
  105. KT88s and grid current
  106. Gain stage with g2-feedback.
  107. K-502 Left Channel is out
  108. 12B4 help needed
  109. Power Trans question
  110. Noob amp wiring question...
  111. 5842 - russian ripoff
  112. Ruskie tube questions
  113. Opt placement
  114. 807 AB2 oscillation maybe?
  115. Amazon Does DIY Parts
  116. Shielded wire
  117. Guitar amp(s) for nephews
  118. Questions about Tube Amplifiers, Mikael's vs SimpleSE
  119. duncan psu simulation vox ac30cc
  120. Where low noise resistors matter
  121. funky power supply
  122. Choke loaded PSU versus VR tube regulated PSU?
  123. What would most of you do?
  124. IRFBC20 as source follower drivers for EL34s in AB1 PP
  125. first post, PS for 6em7 SET amp
  126. affordable transformers for KT-88's
  127. Need help with schematic
  128. How many people here use simulators, like LTspice, to help design tube stuff?
  129. newbie question regarding gain reduction
  130. Anybody did try this tube preamp ?
  131. Heathkit UA-2 output tx wiring question
  132. Question about the properties of "matched" tubes
  133. Using a passive direct box to kill ground loop noise?
  134. magnetized power transformer!
  135. Utc A-24
  136. lower cost options for spectrum analyser/ function generator?
  137. Need schematics for Val VP-110S Tube Amp
  138. So What now
  139. What other tubes can I use this OPT for?
  140. Super Junkbox 6S19P SET
  141. Grid stopper resistors
  142. 1959 Pilot AA-908 Amp into Guitar Amp
  143. Please evaluate my new EL34 Amp (waveform attached)
  144. Max voltages for EL84?
  145. Tubelab SE finished but need help.
  146. Oscilloscope Probes for Tube Work
  147. ECC88 vs 6SN7
  148. Good (tube) audio shows in the US?
  149. Please help me de-hum my new pre
  150. Help for newbie
  151. Simple ReAmp Mod? Help with Input Impedances, Please!
  152. Which of these two phono stages
  153. Crosley radio
  154. Small tube amp for headphones/computer speakers?(first post)
  155. Peculiar Fisher circuit
  156. Hum in Grounded Grid Pre
  157. Counterpoint SA-1000
  158. K-502 How to select a potentiometer
  159. What are these Christmas light things?
  160. a CHEAP integrated tube amp kit-anybody?
  161. My amp is acting like a transducer!?
  162. Transformer current question
  163. Brimar date codes?
  164. Home made SE 300B amp
  165. Parallel Push Pull 6AS7 or 6080
  166. random crackle ? (McMartin MA-20)
  167. KT88 filament failure - twice on same socket
  168. Solid State Regulator for tube amp
  169. Proposed screen-drive amp design... comments, please?
  170. SimpleSE PCB out of stock
  171. Any good explanation of Passive EQ Filters??
  172. terraplane 300B
  173. Sun Audio transformers
  174. Vacuum State RTP5.
  175. Schematics for Audio Innovations s1000 pre
  176. Tube amp for newbye
  177. 3C24SE amp...
  178. Meixing MingDa MC767-RD
  179. confusing transformer connections
  180. Have to mod K-502 to 4Ohms from 8
  181. SOund of 3B28 vs. 866A
  182. S3E Vacuum Tube
  183. Tube audio & "3 dimensionality"
  184. Darling monoblocks
  185. Testing 350B with B & K 747A
  186. Interstage transformer for balanced amp question
  187. Filament transformer questions
  188. dBm or dBV Audio Voltmeter
  189. VTL MB250 Signature monoblock Manual..
  190. Choke phase spliter
  191. Output transformer DC resistance..
  192. Chassis layout?
  193. Jolida schematic questions
  194. Tube Phono preamp kit?
  195. Does size really matter - SE Output
  196. 437A testing
  197. Tube Amp reverb noise, no vibrato intensity, unknown model. Help please
  198. What to do with a 5k output transfomer?
  199. adapter?
  200. Studer 52
  201. Safety ground question
  202. Old PS questions (EL34 replacement), and any Aus people know BWD?
  203. Darling 1626 amp
  204. Blackheart 5 watt
  205. What is this tube amp
  206. Extry, Extry, Blind Squirrel Finds Nut -sequence
  207. Why is distortion harmonic?
  208. Source for OPT
  209. EL34 to RL12P35 converting
  210. calculating total current draw
  211. Allied Radio (Knight) KA-55 schematic
  212. 6F6G Amplifier
  213. good book/article about using oscilloscopes?
  214. how to attach photos
  215. Is 450V the max of triode strapped 6l6gc
  216. Separate power supply - Umbilical Cord
  217. tube amp being weird -- any ideas
  218. need to discharge psu safely
  219. Jadis DA7/defy power amplifier mods
  220. 5.3v on 6SN7 filament?
  221. The Valve Wizard
  222. Mercury vapor rectifier tube question
  223. An Indiana Yankee in Putin's court.
  224. Switching over to a fixed bias
  225. Dynamic load line analysis using music and speaker load
  226. Capacitance in PSU
  227. preamp line ctt
  228. Genalex KT-88 reissue
  229. Combine EF80 with EL84
  230. 2A3 maximum plate voltage
  231. Amplifier Response Stability & All That.
  232. 100k linear pots, any idea?
  233. 6550, 6L6, or 6V6??
  234. grid-stopper resistor
  235. cathode bypass caps suggestions please for newbie
  236. Need Schematic-H&K B.A.T.T.
  237. 6EJ7 phono preamp?
  238. Impressions of the Ella, a pp EL34
  239. 30L15 / PCC805 - What can I use them for?
  240. Ultra Cheap transformers?
  241. Push-pull output impedance
  242. Tube amp cost
  243. 830b
  244. Leak Tl/12+
  245. Toroid Trafo as choke
  246. in search of a 3c33 dual triode.....
  247. Question about MiniBlok II Schematic
  248. Wavebourn Alligator amplifier
  249. Best Tube Testers?
  250. Rusky version EF86

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