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  1. Weird amp on ebay
  2. which type of rubber cushion under transformers?
  3. 12at7 LTP CCS
  4. Which value of a potentiometer
  5. Strange circuit - heater hum opt feedback?
  6. Aikido question
  7. Tubelab SE diode substitute
  8. Copland CTA-402 Phono Section Comments
  9. modified sine wave power inverter
  10. Rebiasing my DSL-100
  11. My EL84 SE
  12. K-16LS kit Assembled and Working
  13. Claus Byrith 30W PP
  14. Aikido pre and class T amplifier ...for a newby
  15. Best replacement for Black Gate WKZ?
  16. DIY Jukebox!!
  17. Partial feedback confusion
  18. Anyone used the 7C7 loktal pentode?
  19. Is vacuumtubes.net still in business?
  20. Rectifier Tubes
  21. music angel kt88 tube amp schmetic needed
  22. Next project suggestions
  23. Unpotted Peerless 16309 OPT from Heath W5m
  24. 6au6 Cf
  25. Direct-Coupling Question
  26. Help on CCS PP differential driver stage for SE 845 amp
  27. I'm Looking for this Similar Schematic !
  28. ECL86 preamp critique please
  29. Low cost 6AV5 design questions (long)
  30. Got my tube spice models, and tubed CD player page back on the air
  31. Vsac 2008?
  32. How hot do Hammond chokes get?
  33. Transformer current question
  34. TubelabSE - best MOSFET choice?
  35. WTD: Reviewer/Writer For DIY Articles
  36. photomultiplier tube - what is this???
  37. Trace Elliot Tube replacment
  38. fun idea: cameras and tubes!
  39. Quicksilver
  40. EI-75 End Bells
  41. Svetlana vs. Winged C
  42. Tube Amp Links
  43. McMartin MA-20 mods
  44. Power-tube grid-leak bias
  45. Best/favorite CF NOS noval twin triode?
  46. How can I calculate voltage over cathode resistor?
  47. Grid bias with Class A SE ?
  48. QUADII with DHT
  49. My First Tube Amp
  50. RH84 vs Magnavox SE?
  51. Rectifier and amp heaters on one supply?
  52. OPT impedance vs. speaker
  53. Power Supply help
  54. Problem with Stealth clone (12A6)
  55. phono stage hiss
  56. Lafayette LT-100 and 6AQ8 tubes
  57. Input potentiometer selection
  58. VSAC 2008 Amp Class
  59. Searching for simple 12bh7/E80cc pre schematic
  60. filament AC vs DC
  61. Novice PS Question: Diode Dilemma
  62. Custom Power Transformer Supplier UK ?
  63. lowering AC heater voltage help?
  64. 60 hz hum, what causes those?
  65. Problem with my ST70 build
  66. S-5 16LS tube amp use with 8 ohm speakers
  67. Yaqin 300b
  68. I'm going in.....
  69. noisy rectifier tube
  70. Quad II Output transformer rewinding question
  71. screen-drive (g2 driven) plate curves spacing linear!
  72. Strange feedback method
  73. Trio W-45a Amp-
  74. Hammond Power Transformer Buzz...
  75. 6v6 push pull guitar amp schematic sought
  76. Tube DI Help, Please: Substitutions
  77. Harmon Kardon Galaxy BA-150
  78. Velleman K8010 monoblock tube amplifiers
  79. First Project Finished-Tubelab Simple SE
  80. My 6S19P Linestage
  81. EL34 recommendations
  82. Edcor CXPP100-MS-5K- anyone used this (or similar 100W) output transformer?
  83. Bypass 2x0B3 tube cap value ?
  84. EF80 vs EF86
  85. Decware MODEL SE84C-DIY
  86. ST35 voltages WAY too high!
  87. How Do "Heat Fins" Work In a Vacuum?
  88. Acrosound Ultra-Linear OT catalog
  89. Simple Questions: Diodes and Heaters
  90. Recommend an input stage triode please
  91. Copper patinization?
  92. V-m 560a
  93. Anybody dealt with high-endstore.com?
  94. Diodes On Rectifier Question
  95. Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
  96. looking for a website...
  97. Simple 45/2A3 schematic error?
  98. Plate load for push-pull
  99. Hybrid regulator
  100. Hybrid Graetz Bridge
  101. JCM 900 100 Watt Power Trans Specs..
  102. My first amplifier - 6n3c-E
  103. Power supply problem
  104. Grid choke as I/V?
  105. Hammond PR20
  106. 6JN6 screen-drive (g2 driven) plate curves?
  107. Another compactron PP output
  108. 6922 transformer coupled
  109. Beam Deflection Tube Limiter
  110. 6LW6 bias points
  111. Dynaco SCA-35 or Sherwood S5000 iV
  112. SE 6550 class project (continued)
  113. gibson amp lp JR
  114. EL821 / 6CH6 triode curves?
  115. Ground wire adds hum to Harmony H-400A AC/DC amp
  116. "magic" phase splitter for SimpleP-P
  117. Harmon Kardon tube amp kit testing
  118. Did I hurt this capacitor?
  119. (newb) Why no white (-) leads on power trafo
  120. Ruined transformer?
  121. My Tabor Clone is finished.
  122. first build 6em7 and it works
  123. Cleaning up baked enamel/painted finishes
  124. panel meters
  125. Highs roll off
  126. scratch build EAR834p
  127. Silvertone Organ Amp
  128. El156se
  129. One more hybrid idea
  130. Can Anyone figure this?
  131. "Mighty Mite" Single Ended Amplifier
  132. old question - lost answer 6AS7 SE amp
  133. My KT88 SE project
  134. Motorola OPT
  135. Weird Input transformer hum.
  136. cascode vs asymmetrical cathode coupled
  137. music angel 845 SET
  138. Help! My amp stopped singing...
  139. LTP CCS IXYS with 10m45s opinions
  140. Boozhound Choke Tail Pair for HiFi
  141. Bass guitar amp...
  142. 5718 subminiture tube?
  143. fixed bias for push pull tube amps
  144. EC86 and phono
  145. Power Transformer mystery lead....
  146. Bias measurements 6L6
  147. 0A3 Light
  148. Equivalent to Tango NC-10 IT
  149. Ammeter wiring?
  150. Highest Practical Primary Z in OPT?
  151. Ampex 6v6 PP Modifications
  152. Variability of RIAA eq with tube characteristics?
  153. 807/350B/6L6 PP amps PSU ?
  154. Need Help For Tube Amp
  155. ECC83 300B Loftin White amp
  156. Hashimoto and the wonderful 45
  157. Capacitor identification–old PIO?
  158. Heathkit variac
  159. E80L pentode mode as driver?
  160. Transformer repair
  161. How many ga for chassis wire?
  162. 807 Guitar Amplifier
  163. I want to MOD - help?
  164. What About Beam Deflection Tubes?
  165. Capacitor
  166. Placement of Ultralinear Tap On Homemade Transformer
  167. Differential stage with CCS in cathode
  168. Directly heated Cathode/insulation question
  169. "Dirt Cheap SE" 6BM8 spud amp
  170. isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
  171. Single-end Power amp with tubes
  172. Input pot question
  173. Need help putting 6Z4 into PSU Designer
  174. SimpleSE Under Chassis Mounting
  175. Bias methods?
  176. Aikido and SE KT88
  177. Built this pre amp today!
  178. Mystery tube in a Fisher FM-90X - V50,064
  179. Switch contacts for HV supply
  180. The First Sound Recording - we can hear it finally
  181. RCA made in Japan???????
  182. 6V6GT in the SimpleSE
  183. trimmings for amp project
  184. Tube Preamp Hybrid new builder, lots of question!
  185. Chinese mini bias pots
  186. GU-50, GM70 and KT88
  187. Please recommend me an amplifier design.
  188. Single-ended OR push-pull?
  189. Darling in Europe... (110 vs. 220)
  190. DC heater (+/-) -> elevated?
  191. Tubelab simple SE help needed...working but only on one channel
  192. Yaqin MS-300B SET amp
  193. 300b calibration (tubelab)
  194. Sonics of a "dynamic coupled" driver
  195. 716p's Vs. Fancy Caps
  196. ELL80
  197. Will this work?
  198. What circuit to build with MQ TL-404
  199. Very low output from Knight KN928 amp
  200. 6GK5 to drive a 6AS7?
  201. Plate Heater Dissipators
  202. preamp suitable for Dynaco st-70- OTHER than dynaco
  203. 'EL34 World' website for music amps
  204. Strange Russian(?) tube tester
  205. is this possible?
  206. Power transformer impedance
  207. Anybody did compared tube vs opamp for preamp ?
  208. The days of wine, roses & WE205D
  209. I need to ask...
  210. SPICE model for 6AK5 wanted!
  211. Differences with 6C33 Tube Types
  212. mugen hybride
  213. 1st Build - Kit or No Kit
  214. feedback problems
  215. Antique Electric Supply
  216. Highs
  217. ELK bass amp, mono, twin OPT's (?)
  218. Anyone have a "handle" on the Yaqin EL34 X 2 SE AMP?
  219. Suggestions on books
  220. Cathode stripping in low voltage tubes
  221. Current to overcome 6.5 uuF input capacitance?
  222. Help me to work on the damping factor of my 845 SET
  223. Y A A B - Yet Another Aikido Build
  224. Music Angel - Help wanted
  225. Calculating PS current for octal Aikido
  226. X-10d
  227. wirewound vs standard pots
  228. Anyone famaliar with the 485 tube?
  229. Ideas for ground plane/shielding?
  230. TESLA E88CC 6922 Tubes shorting out???????
  231. Will My Ipod Benefit Through a Tube Amp?
  232. PSU for testing circuits
  233. easier way to cut a square hole for xmfr
  234. Combine left & right for sub
  235. Noisy Squeal from SE amp
  236. Plate Choke calculation
  237. Audio Cable Deathmatch!
  238. tubelab PP?
  239. replacing op-amps with thermionic valves
  240. aikido heater
  241. Heathkit W 5M output transformers
  242. 6S19 Circlotron (OTL)
  243. Quality of Hammond 1600 series transformers and a question about loading.
  244. Kuei Yang Wang's 6sn7 linestage
  245. Laney TF-200 speaker farts out...
  246. E-mu 0202 + audiotester
  247. Where to buy HT toroids ?
  248. CJ 1.4: Power tubes are working but drivers not ! Help please.
  249. A 6SN7 direct coupled preamp & regulated supply for everyone's perusal.
  250. Slight hum from my new soldering station.

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