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  1. help me choose a high end opt for tubelabs SE!
  2. 6L6/807 AB2 triode-- screen drive?
  3. help troubleshooting
  4. Anode Follower Article
  5. ECC802S 12AU7 ECC82 heater question
  6. Books for amplifiers
  7. E180F Preamp
  8. Don Allen Amp's ????
  9. To connect or not to connect..........
  10. Phonostage with tube moving coil
  11. 300b tube Temperature?
  12. Center tap transformer for elevated heater supplies
  13. single ended kt88 fuse blowing after an hour
  14. Radiotron question
  15. suggested use for old telefunken tubes
  16. Using different ouputs for two different drivers
  17. Pete Millett Uniamp with 300b
  18. Cary slp-70
  19. How to combine 2 signals from 2 gain stages
  20. Increase B+ supply
  21. Aikido Tetra Sans Phono PCB
  22. Loadlines and distortion (6S33S/6S41S)
  23. home theatre bypass feature
  24. Doubling the power of hifi tube amplifiers
  25. Can this tube be used in audio amplifier?
  26. 100 V OPT
  27. Help me understand tube chart data
  28. Listening preference....
  29. Stand alone gain stage pre-amp
  30. I kinda sorta burned up my K12-G power transformer
  31. RCA-182 Tube Amp
  32. Transformer potting material? what material?
  33. Ultimate 6xEL34 PPP monoblocks? Hopefully with your help :)
  34. tube amp/pre in car?
  35. Thorsten's tube Stage for TDA1541A
  36. any suggestions for a mid-amp transformer for a hybrid design... like this circuit...
  37. how much C is too much C?
  38. fisher 70AZ
  39. RE: My first attempt at using Tube Cadd
  40. Srpp simple explanation
  41. Driver for a 807 em triode mode...help !!!
  42. 6J6-based SSMH?
  43. Small tube amp based on 6N6P
  44. replacement for Ei 12BH7AEG
  45. Preamp input tube noise
  46. How much is too much for a 6L6GB?
  47. What is the proper way to measure transformer inductance?
  48. Audio Research LS8 mod. to MKII
  49. Futterman stage max input
  50. Pushing 6p14p too hard
  51. Who can tell me in Rome where can i buy antique Vacuum tube?
  52. Is the YAQIN MS-12B (220v +-10%) safe to use in UK
  53. Priboi biasing
  54. Whither Westrex ?.
  55. Tube Phono Pre-Amplifiers
  56. Pioneer SA400 -- Headphones hum, speakers don't. Why?
  57. DIY tube amps for surround sounds?
  58. What is Matise circuit?
  59. 6bq5 red plating
  60. Technical questions about Melos MA-333
  61. idiot proof mono push pull 6l6gc schematic wanted
  62. Passive Preamp Mod help
  63. KT77 OPT impedance
  64. i think i'm thru with 2A3 tubes
  65. VTC4U? Is that the name of the tube tower/shroud seller?
  66. 8417 triode el.. Mod??'s
  67. Gramp's Zenith MLT 15
  68. Class A tube amplifier Kit
  69. Stromberg Carlson ASR 433
  70. quads11&22 back into service
  71. New Tubes for sale
  72. Best design for Lundahl LL1679/PP
  73. 12U7 LTP vs. 6922 cascode
  74. Need help calculating value of balancing resistors
  75. 12ax7 12au7 preamp
  76. Western Electric 471A...any information ?
  77. Please Reply
  78. tube line preamplifier circuit
  79. 6L6 Ultralinear cathode Follower
  80. Grid current operation
  81. 431 based screen supply
  82. Where did all the money go?
  83. Hyperx soft start any good for valve amp situation?
  84. Class AB2, Class B, and Hifi
  85. PP 6b4g bad / distorted channel diagnostics
  86. Transformer usage ??
  87. Phono Amplifier
  88. Need EL84 Brand Identification
  89. RCA Octagon dating
  90. Most Accurate Bias Testing Method
  91. ASL AQ1003DT schematic or manual?
  92. Penta brand 6L6GC info?
  93. Mod to SE 6SN7 - 6V6 amp
  94. adjust filament ECC82/83
  95. Help ID this OPT
  96. Help? 6n23p cathode follower
  97. DC Heater Caps
  98. Load Line and Biasing for Class AB 6550 power amp
  99. Amp project help needed
  100. LTP with CCS and feedback
  101. Clarion simple 2A3 amplifier
  102. Another question about plate curves and pentode load lines
  103. 5V Indrect Heated Rectifiers?
  104. Easy CCS
  105. I just setup my mimiwat n3 with a pair of Energy cb-20 speakers
  106. First watt F2/little dot MK III
  107. Old Motorola console tube amp, fuse problem
  108. How much performance difference w/ this config?
  109. 6P8S datasheet, help !!
  110. DHT IMD
  111. How to calculate OPT transformer windings
  112. Newbie Questions
  113. plate curves and max ratings questions
  114. Heater-cathode DC conduction resistance
  115. EL 84 Capacitor Equivalent
  116. How do they get away with this?
  117. well-loved Sherwood "popping" prob mouse pee
  118. Tube Newb: 12sn7 and 12sl7 interchangeable?
  119. Totem-Pole OTL with 6c33c tubes and 0.079 % THD at 20 Watt
  120. sonic frontiers sfm-75
  121. Chinese tube amp mods?
  122. PSU for JE Labs Simple 45/2A3
  123. frustrated ,Bought a 845 NOS - springs are discconnected need help
  124. Running water sound in amp
  125. Peerless 16458 output transformers
  126. Noisy high-gain preamplifier
  127. Cheap ($235) SE Tube amp kit, transformer and chassis on ebay
  128. 2A3 single plate RCA/Cunningham tube prices
  129. output transformer power rating
  130. Rectifier Foward Voltage?
  131. Help With 6Y6 amp
  132. What are 12AT7/ECC81 power drivers ?
  133. Help with these Russian GU50 tube amplifier
  134. Eico ST-70 Supermods
  135. Mullard PZ30, how's its Peak Inverse Voltage?
  136. 12AU7 in cascode configuration
  137. Bad tube in old record player?
  138. cathode caps
  139. Aikido HV PSU
  140. Distance between 6N23P and a cap?
  141. Phillips Music Sudio
  142. LTPI Grid stopper value affect on harmonics
  143. WTF. What's going on here.
  144. 7-pin pcb mount socket with shield?
  145. SIMPLE remote volume control with alps motorized pot
  146. Hybrid Partial Feedback SE Amplifier
  147. Eico experts needed: PEC in 2050 driver stage bad
  148. Best sounding linestage/buffer topology?
  149. Using ECC88
  150. what tubes should I upgrade a mini watt with I currently have the stock 6p14 and 6bq5
  151. EL34 cathode bias PA
  152. Tube Amp Art
  153. Quick OT Question
  154. ampex 354? some questions
  155. Fisher 101d blow fuse
  156. Jolida 502A lost output...?
  157. Codename "Tapyrus", my ongoing DIY headphone amp
  158. RIAA preamp with DHTs
  159. Dynaco Mark VI feedback values
  160. Ode to Tube Rollers
  161. switching tubes: good or bad idea?
  162. COnn Organ Amp DI266 Info 12v6GT tubes
  163. Please help me figure out why my plate voltage is too high here
  164. Yaqin MC10L Question for the Guru's
  165. PP PSU: How much ripple is too much ripple?
  166. Bypass caps in choke PS
  167. Grounded Grid TRANSCENDENT line stage
  168. Battery Powered Tube Amp
  169. 5Z4PJ 6N2J
  170. Almost there! opinions are welcomed(6C33SET)
  171. Speaker impedance and amp matching?
  172. r core or toroidal output trafo for dynaco st70
  173. Heathkit Returns
  174. How to get started
  175. WANTED: schematic for Eico 2050 Classic Series
  176. winding an output transformer
  177. 12AX7 vacuum tube pre-amp?
  178. Audionote kit L4 and L6
  179. class a audio amplifier 5w with ic ne5532
  180. Fate of my Heathkit W7-M amplifiers
  181. Newcomb E-10B Amplifer
  182. Telefunken RV218 power triode
  183. Crowhurst High Power vs Low Power Amplifiers
  184. damper diodes
  185. EL12N in JCM800 clone
  186. Amp design exercise, mentorship needed...
  187. Need help with series filament 25l6GT amp
  188. Dynakit Mark IV Oscillation
  189. Telefunken C3M data
  190. Can a tube guru help with nu>lambda conversions?
  191. plate dissipation vs brand
  192. Solid-state replacements for PAS2/3 rectifiers?
  193. first integrated amp
  194. st70A mod.kit
  195. Grampian 600u
  196. Suggest amp to drive mangnapan SMGa/MMG
  197. Yaqin Tube Amplifier
  198. Jensen JT-11P-1 on tube amp input
  199. Amperex PQ 6922 code decifering?
  200. 12ax7 driving a DHT out, why not?
  201. unknown Rogers Pre Power
  202. power tube power scaler
  203. Tube Rectifier with transformer without Center tap
  204. Can I use this stuff (does it have any value?)
  205. Full regulated power supply for 12au7(preamp)
  206. 6C33 OTL Circlotron
  207. Unknown output transformer
  208. Building a tube pre/amp copy (6V6)
  209. 6922 pin i.d.
  210. KT88 Push Pull Amp using transistor driver stage
  211. 45 DHT HT Supply oscillating - help!
  212. exceeding plate voltage of the output tube
  213. Fisher 101D
  214. Looking for old amp info
  215. Restoring an old tube amp
  216. Noob Tube Preamp Finished Kit Transformer HOT!
  217. the tv underrated tubes
  218. Headphone Amp
  219. What is needed to drive 86db speakers and sound *good*?
  220. ef86 - plate voltage
  221. Output signal distortion
  222. Minimum Acceptable Gm
  223. Anyone have experience with the 6SD7GT tube ?
  224. Identifying an ultralinear OPT
  225. A good sounding EL34 PP sch please
  226. THE CHAMP CBA-20807 1000 Watt Valve amplifier
  227. ST-35 First Build
  228. Identifying EL34 tube?
  229. Solid state relais in stean of standby swtich
  230. $75 tube amp kit on eBay???
  231. variable power control
  232. reccommend a voltage doubler for bias?
  233. ecf82 pentode instead of ef86
  234. K-12G vs. K-502
  235. eq in a tiny Directly Heated Cathode amp
  236. Anyone ever try 6C33C SE with Aikido drive?
  237. Help with 1:2 line level input Tx's
  238. 112a preamp need comment please
  239. Excellent (Modified) Williamson Treatise
  240. Vintage Hoffman Stereo Amp Problem - fump, fump, fump
  241. Chicago BO-14 100w amp
  242. Simple B+ delay circuit for tube power amp?
  243. My small tube does it work?
  244. Approaching the best primary impedance on low or high side?
  245. CT Trafo and floating psu for circlotron?
  246. Unknown tube, need help to identify!
  247. 6L6 guidance needed
  248. Output Power Question
  249. Can the 7AK7 computer tube work as audio output tube ?
  250. Burned in Power Tubes?

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