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  1. panel meters
  2. Highs roll off
  3. scratch build EAR834p
  4. Silvertone Organ Amp
  5. El156se
  6. One more hybrid idea
  7. Can Anyone figure this?
  8. "Mighty Mite" Single Ended Amplifier
  9. old question - lost answer 6AS7 SE amp
  10. My KT88 SE project
  11. Motorola OPT
  12. Weird Input transformer hum.
  13. cascode vs asymmetrical cathode coupled
  14. music angel 845 SET
  15. Help! My amp stopped singing...
  16. LTP CCS IXYS with 10m45s opinions
  17. Boozhound Choke Tail Pair for HiFi
  18. Bass guitar amp...
  19. 5718 subminiture tube?
  20. fixed bias for push pull tube amps
  21. EC86 and phono
  22. Power Transformer mystery lead....
  23. Bias measurements 6L6
  24. 0A3 Light
  25. Equivalent to Tango NC-10 IT
  26. Ammeter wiring?
  27. Highest Practical Primary Z in OPT?
  28. Ampex 6v6 PP Modifications
  29. Variability of RIAA eq with tube characteristics?
  30. 807/350B/6L6 PP amps PSU ?
  31. Need Help For Tube Amp
  32. ECC83 300B Loftin White amp
  33. Hashimoto and the wonderful 45
  34. Capacitor identification–old PIO?
  35. Heathkit variac
  36. E80L pentode mode as driver?
  37. Transformer repair
  38. How many ga for chassis wire?
  39. 807 Guitar Amplifier
  40. I want to MOD - help?
  41. What About Beam Deflection Tubes?
  42. Capacitor
  43. Placement of Ultralinear Tap On Homemade Transformer
  44. Differential stage with CCS in cathode
  45. Directly heated Cathode/insulation question
  46. "Dirt Cheap SE" 6BM8 spud amp
  47. isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
  48. Single-end Power amp with tubes
  49. Input pot question
  50. Need help putting 6Z4 into PSU Designer
  51. SimpleSE Under Chassis Mounting
  52. Bias methods?
  53. Aikido and SE KT88
  54. Built this pre amp today!
  55. Mystery tube in a Fisher FM-90X - V50,064
  56. Switch contacts for HV supply
  57. The First Sound Recording - we can hear it finally
  58. RCA made in Japan???????
  59. 6V6GT in the SimpleSE
  60. trimmings for amp project
  61. Tube Preamp Hybrid new builder, lots of question!
  62. Chinese mini bias pots
  63. GU-50, GM70 and KT88
  64. Please recommend me an amplifier design.
  65. Single-ended OR push-pull?
  66. Darling in Europe... (110 vs. 220)
  67. DC heater (+/-) -> elevated?
  68. Tubelab simple SE help needed...working but only on one channel
  69. Yaqin MS-300B SET amp
  70. 300b calibration (tubelab)
  71. Sonics of a "dynamic coupled" driver
  72. 716p's Vs. Fancy Caps
  73. ELL80
  74. Will this work?
  75. What circuit to build with MQ TL-404
  76. Very low output from Knight KN928 amp
  77. 6GK5 to drive a 6AS7?
  78. Plate Heater Dissipators
  79. preamp suitable for Dynaco st-70- OTHER than dynaco
  80. 'EL34 World' website for music amps
  81. Strange Russian(?) tube tester
  82. is this possible?
  83. Power transformer impedance
  84. Anybody did compared tube vs opamp for preamp ?
  85. The days of wine, roses & WE205D
  86. I need to ask...
  87. SPICE model for 6AK5 wanted!
  88. Differences with 6C33 Tube Types
  89. mugen hybride
  90. 1st Build - Kit or No Kit
  91. feedback problems
  92. Antique Electric Supply
  93. Highs
  94. ELK bass amp, mono, twin OPT's (?)
  95. Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP?
  96. Suggestions on books
  97. Cathode stripping in low voltage tubes
  98. Current to overcome 6.5 uuF input capacitance?
  99. Help me to work on the damping factor of my 845 SET
  100. Y A A B - Yet Another Aikido Build
  101. Music Angel - Help wanted
  102. Calculating PS current for octal Aikido
  103. X-10d
  104. wirewound vs standard pots
  105. Anyone famaliar with the 485 tube?
  106. Ideas for ground plane/shielding?
  107. TESLA E88CC 6922 Tubes shorting out???????
  108. Will My Ipod Benefit Through a Tube Amp?
  109. PSU for testing circuits
  110. easier way to cut a square hole for xmfr
  111. Combine left & right for sub
  112. Noisy Squeal from SE amp
  113. Plate Choke calculation
  114. Audio Cable Deathmatch!
  115. tubelab PP?
  116. replacing op-amps with thermionic valves
  117. aikido heater
  118. Heathkit W 5M output transformers
  119. 6S19 Circlotron (OTL)
  120. Quality of Hammond 1600 series transformers and a question about loading.
  121. Kuei Yang Wang's 6sn7 linestage
  122. Laney TF-200 speaker farts out...
  123. E-mu 0202 + audiotester
  124. Where to buy HT toroids ?
  125. CJ 1.4: Power tubes are working but drivers not ! Help please.
  126. A 6SN7 direct coupled preamp & regulated supply for everyone's perusal.
  127. Slight hum from my new soldering station.
  128. phono stage
  129. 6sn7gtb problem
  130. The old man told me to get it all out of the basement
  131. The Look of Preamp Hum
  132. hookup wire options
  133. Tubelab Simple Se Trannie Shopping List-a Newbie Seeks Info
  134. Testing Amplifiers / Pad
  135. Volume Pot vs Stepped Attenuater
  136. Which tubes should I use?
  137. KT88s and grid current
  138. Gain stage with g2-feedback.
  139. K-502 Left Channel is out
  140. 12B4 help needed
  141. Power Trans question
  142. Noob amp wiring question...
  143. 5842 - russian ripoff
  144. Ruskie tube questions
  145. Opt placement
  146. 807 AB2 oscillation maybe?
  147. Amazon Does DIY Parts
  148. Shielded wire
  149. Guitar amp(s) for nephews
  150. Questions about Tube Amplifiers, Mikael's vs SimpleSE
  151. duncan psu simulation vox ac30cc
  152. Where low noise resistors matter
  153. funky power supply
  154. Choke loaded PSU versus VR tube regulated PSU?
  155. What would most of you do?
  156. IRFBC20 as source follower drivers for EL34s in AB1 PP
  157. first post, PS for 6em7 SET amp
  158. affordable transformers for KT-88's
  159. Need help with schematic
  160. How many people here use simulators, like LTspice, to help design tube stuff?
  161. newbie question regarding gain reduction
  162. Anybody did try this tube preamp ?
  163. Heathkit UA-2 output tx wiring question
  164. Question about the properties of "matched" tubes
  165. Using a passive direct box to kill ground loop noise?
  166. magnetized power transformer!
  167. Utc A-24
  168. lower cost options for spectrum analyser/ function generator?
  169. Need schematics for Val VP-110S Tube Amp
  170. So What now
  171. What other tubes can I use this OPT for?
  172. Super Junkbox 6S19P SET
  173. Grid stopper resistors
  174. 1959 Pilot AA-908 Amp into Guitar Amp
  175. Please evaluate my new EL34 Amp (waveform attached)
  176. Max voltages for EL84?
  177. Tubelab SE finished but need help.
  178. Oscilloscope Probes for Tube Work
  179. ECC88 vs 6SN7
  180. Good (tube) audio shows in the US?
  181. Please help me de-hum my new pre
  182. Help for newbie
  183. Simple ReAmp Mod? Help with Input Impedances, Please!
  184. Which of these two phono stages
  185. Crosley radio
  186. Small tube amp for headphones/computer speakers?(first post)
  187. Peculiar Fisher circuit
  188. Hum in Grounded Grid Pre
  189. Counterpoint SA-1000
  190. K-502 How to select a potentiometer
  191. What are these Christmas light things?
  192. a CHEAP integrated tube amp kit-anybody?
  193. My amp is acting like a transducer!?
  194. Transformer current question
  195. Brimar date codes?
  196. Home made SE 300B amp
  197. Parallel Push Pull 6AS7 or 6080
  198. random crackle ? (McMartin MA-20)
  199. KT88 filament failure - twice on same socket
  200. Solid State Regulator for tube amp
  201. Proposed screen-drive amp design... comments, please?
  202. SimpleSE PCB out of stock
  203. Any good explanation of Passive EQ Filters??
  204. terraplane 300B
  205. Sun Audio transformers
  206. Vacuum State RTP5.
  207. Schematics for Audio Innovations s1000 pre
  208. Tube amp for newbye
  209. 3C24SE amp...
  210. Meixing MingDa MC767-RD
  211. confusing transformer connections
  212. Have to mod K-502 to 4Ohms from 8
  213. SOund of 3B28 vs. 866A
  214. S3E Vacuum Tube
  215. Tube audio & "3 dimensionality"
  216. Darling monoblocks
  217. Testing 350B with B & K 747A
  218. Interstage transformer for balanced amp question
  219. Filament transformer questions
  220. dBm or dBV Audio Voltmeter
  221. VTL MB250 Signature monoblock Manual..
  222. Choke phase spliter
  223. Output transformer DC resistance..
  224. Chassis layout?
  225. Jolida schematic questions
  226. Tube Phono preamp kit?
  227. Does size really matter - SE Output
  228. 437A testing
  229. Tube Amp reverb noise, no vibrato intensity, unknown model. Help please
  230. What to do with a 5k output transfomer?
  231. adapter?
  232. Studer 52
  233. Safety ground question
  234. Old PS questions (EL34 replacement), and any Aus people know BWD?
  235. Darling 1626 amp
  236. Blackheart 5 watt
  237. What is this tube amp
  238. Extry, Extry, Blind Squirrel Finds Nut -sequence
  239. Why is distortion harmonic?
  240. Source for OPT
  241. EL34 to RL12P35 converting
  242. calculating total current draw
  243. Allied Radio (Knight) KA-55 schematic
  244. 6F6G Amplifier
  245. good book/article about using oscilloscopes?
  246. how to attach photos
  247. Is 450V the max of triode strapped 6l6gc
  248. Separate power supply - Umbilical Cord
  249. tube amp being weird -- any ideas
  250. need to discharge psu safely

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