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  1. Input pot question
  2. Need help putting 6Z4 into PSU Designer
  3. SimpleSE Under Chassis Mounting
  4. Bias methods?
  5. Aikido and SE KT88
  6. Built this pre amp today!
  7. Mystery tube in a Fisher FM-90X - V50,064
  8. Switch contacts for HV supply
  9. The First Sound Recording - we can hear it finally
  10. RCA made in Japan???????
  11. 6V6GT in the SimpleSE
  12. trimmings for amp project
  13. Tube Preamp Hybrid new builder, lots of question!
  14. Chinese mini bias pots
  15. GU-50, GM70 and KT88
  16. Please recommend me an amplifier design.
  17. Single-ended OR push-pull?
  18. Darling in Europe... (110 vs. 220)
  19. DC heater (+/-) -> elevated?
  20. Tubelab simple SE help needed...working but only on one channel
  21. Yaqin MS-300B SET amp
  22. 300b calibration (tubelab)
  23. Sonics of a "dynamic coupled" driver
  24. ELL80
  25. Will this work?
  26. What circuit to build with MQ TL-404
  27. Very low output from Knight KN928 amp
  28. 6GK5 to drive a 6AS7?
  29. Plate Heater Dissipators
  30. preamp suitable for Dynaco st-70- OTHER than dynaco
  31. 'EL34 World' website for music amps
  32. Strange Russian(?) tube tester
  33. is this possible?
  34. Power transformer impedance
  35. Anybody did compared tube vs opamp for preamp ?
  36. The days of wine, roses & WE205D
  37. I need to ask...
  38. SPICE model for 6AK5 wanted!
  39. Differences with 6C33 Tube Types
  40. mugen hybride
  41. 1st Build - Kit or No Kit
  42. feedback problems
  43. Antique Electric Supply
  44. Highs
  45. ELK bass amp, mono, twin OPT's (?)
  46. Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP?
  47. Suggestions on books
  48. Cathode stripping in low voltage tubes
  49. Current to overcome 6.5 uuF input capacitance?
  50. Help me to work on the damping factor of my 845 SET
  51. Y A A B - Yet Another Aikido Build
  52. Music Angel - Help wanted
  53. Calculating PS current for octal Aikido
  54. X-10d
  55. wirewound vs standard pots
  56. Anyone famaliar with the 485 tube?
  57. Ideas for ground plane/shielding?
  58. TESLA E88CC 6922 Tubes shorting out???????
  59. Will My Ipod Benefit Through a Tube Amp?
  60. PSU for testing circuits
  61. easier way to cut a square hole for xmfr
  62. Combine left & right for sub
  63. Noisy Squeal from SE amp
  64. Plate Choke calculation
  65. Audio Cable Deathmatch!
  66. tubelab PP?
  67. replacing op-amps with thermionic valves
  68. aikido heater
  69. Heathkit W 5M output transformers
  70. 6S19 Circlotron (OTL)
  71. Quality of Hammond 1600 series transformers and a question about loading.
  72. Kuei Yang Wang's 6sn7 linestage
  73. E-mu 0202 + audiotester
  74. Where to buy HT toroids ?
  75. CJ 1.4: Power tubes are working but drivers not ! Help please.
  76. A 6SN7 direct coupled preamp & regulated supply for everyone's perusal.
  77. Slight hum from my new soldering station.
  78. phono stage
  79. 6sn7gtb problem
  80. The old man told me to get it all out of the basement
  81. The Look of Preamp Hum
  82. hookup wire options
  83. Tubelab Simple Se Trannie Shopping List-a Newbie Seeks Info
  84. Testing Amplifiers / Pad
  85. Volume Pot vs Stepped Attenuater
  86. Which tubes should I use?
  87. KT88s and grid current
  88. Gain stage with g2-feedback.
  89. K-502 Left Channel is out
  90. 12B4 help needed
  91. Power Trans question
  92. Noob amp wiring question...
  93. 5842 - russian ripoff
  94. Ruskie tube questions
  95. Opt placement
  96. 807 AB2 oscillation maybe?
  97. Amazon Does DIY Parts
  98. Shielded wire
  99. Questions about Tube Amplifiers, Mikael's vs SimpleSE
  100. Where low noise resistors matter
  101. funky power supply
  102. Choke loaded PSU versus VR tube regulated PSU?
  103. What would most of you do?
  104. IRFBC20 as source follower drivers for EL34s in AB1 PP
  105. first post, PS for 6em7 SET amp
  106. affordable transformers for KT-88's
  107. Need help with schematic
  108. How many people here use simulators, like LTspice, to help design tube stuff?
  109. newbie question regarding gain reduction
  110. Anybody did try this tube preamp ?
  111. Heathkit UA-2 output tx wiring question
  112. Question about the properties of "matched" tubes
  113. Using a passive direct box to kill ground loop noise?
  114. magnetized power transformer!
  115. Utc A-24
  116. lower cost options for spectrum analyser/ function generator?
  117. Need schematics for Val VP-110S Tube Amp
  118. So What now
  119. What other tubes can I use this OPT for?
  120. Super Junkbox 6S19P SET
  121. Grid stopper resistors
  122. Please evaluate my new EL34 Amp (waveform attached)
  123. Max voltages for EL84?
  124. Tubelab SE finished but need help.
  125. Oscilloscope Probes for Tube Work
  126. ECC88 vs 6SN7
  127. Good (tube) audio shows in the US?
  128. Please help me de-hum my new pre
  129. Help for newbie
  130. Simple ReAmp Mod? Help with Input Impedances, Please!
  131. Which of these two phono stages
  132. Crosley radio
  133. Small tube amp for headphones/computer speakers?(first post)
  134. Peculiar Fisher circuit
  135. Hum in Grounded Grid Pre
  136. Counterpoint SA-1000
  137. K-502 How to select a potentiometer
  138. What are these Christmas light things?
  139. a CHEAP integrated tube amp kit-anybody?
  140. My amp is acting like a transducer!?
  141. Transformer current question
  142. Brimar date codes?
  143. Home made SE 300B amp
  144. Parallel Push Pull 6AS7 or 6080
  145. random crackle ? (McMartin MA-20)
  146. KT88 filament failure - twice on same socket
  147. Solid State Regulator for tube amp
  148. Proposed screen-drive amp design... comments, please?
  149. SimpleSE PCB out of stock
  150. Any good explanation of Passive EQ Filters??
  151. terraplane 300B
  152. Sun Audio transformers
  153. Vacuum State RTP5.
  154. Schematics for Audio Innovations s1000 pre
  155. Tube amp for newbye
  156. 3C24SE amp...
  157. Meixing MingDa MC767-RD
  158. confusing transformer connections
  159. Have to mod K-502 to 4Ohms from 8
  160. SOund of 3B28 vs. 866A
  161. S3E Vacuum Tube
  162. Tube audio & "3 dimensionality"
  163. Darling monoblocks
  164. Testing 350B with B & K 747A
  165. Interstage transformer for balanced amp question
  166. Filament transformer questions
  167. dBm or dBV Audio Voltmeter
  168. VTL MB250 Signature monoblock Manual..
  169. Choke phase spliter
  170. Output transformer DC resistance..
  171. Chassis layout?
  172. Jolida schematic questions
  173. Tube Phono preamp kit?
  174. Does size really matter - SE Output
  175. 437A testing
  176. What to do with a 5k output transfomer?
  177. adapter?
  178. Studer 52
  179. Safety ground question
  180. Old PS questions (EL34 replacement), and any Aus people know BWD?
  181. Darling 1626 amp
  182. Blackheart 5 watt
  183. What is this tube amp
  184. Extry, Extry, Blind Squirrel Finds Nut -sequence
  185. Why is distortion harmonic?
  186. Source for OPT
  187. EL34 to RL12P35 converting
  188. calculating total current draw
  189. Allied Radio (Knight) KA-55 schematic
  190. 6F6G Amplifier
  191. good book/article about using oscilloscopes?
  192. how to attach photos
  193. Is 450V the max of triode strapped 6l6gc
  194. Separate power supply - Umbilical Cord
  195. tube amp being weird -- any ideas
  196. need to discharge psu safely
  197. Jadis DA7/defy power amplifier mods
  198. 5.3v on 6SN7 filament?
  199. The Valve Wizard
  200. Mercury vapor rectifier tube question
  201. An Indiana Yankee in Putin's court.
  202. Switching over to a fixed bias
  203. Dynamic load line analysis using music and speaker load
  204. Capacitance in PSU
  205. preamp line ctt
  206. Genalex KT-88 reissue
  207. Combine EF80 with EL84
  208. 2A3 maximum plate voltage
  209. Amplifier Response Stability & All That.
  210. 100k linear pots, any idea?
  211. 6550, 6L6, or 6V6??
  212. grid-stopper resistor
  213. cathode bypass caps suggestions please for newbie
  214. Need Schematic-H&K B.A.T.T.
  215. 6EJ7 phono preamp?
  216. Impressions of the Ella, a pp EL34
  217. 30L15 / PCC805 - What can I use them for?
  218. Ultra Cheap transformers?
  219. Push-pull output impedance
  220. Tube amp cost
  221. 830b
  222. Leak Tl/12+
  223. Toroid Trafo as choke
  224. in search of a 3c33 dual triode.....
  225. Question about MiniBlok II Schematic
  226. Wavebourn Alligator amplifier
  227. Best Tube Testers?
  228. Rusky version EF86
  229. Melos SHA Gold Issue
  230. Tubelab Simple SE & Edcor
  231. Erratic tube activity
  232. Bogen Front End
  233. Maybe a Ruskie
  234. Another kind of hybrid
  235. Output impedance
  236. GU29 Amp. Schematic - Audioromy or similar
  237. Power On Indicator Light
  238. Newbie Aikido power supply question
  239. Se output transformer question
  240. Aikido hum
  241. Output transformer replacement... Worth it?
  242. Almarro A205A schematic
  243. Valves World question
  244. diodes before plate load
  245. power tubes..newbie question.
  246. Need Help 12BH7 Tube test.
  247. Tube Virgin
  248. Chassis layout help
  249. Maybe this is why 300b's dont last as long
  250. High-voltage bench power supply

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