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  1. Mu Follower to drive a Push-Pull Amplifier?
  2. The 6934A Triode Tube
  3. Constant current sink for 6SN7
  4. 6V6 high voltage
  5. VTL deluxe 100 monoblk (KT88) need help?
  6. Va,Ia exeed limiting values in datasheeds ?
  7. Old DIYtube ST-35 electrolytics - swap?
  8. What Hammond for UK?
  9. What would you build with this transformer set?
  10. EL86 / 6CW5 + 6BQ7A amp design
  11. Western Electric theater amplifiers; how to hook them up?
  12. 12AU7,12B4A PSE schematic needs finishing!
  13. Dual grid and plate pins
  14. Best sounding ECC83 ?
  15. tube output for Playstation 1
  16. 6GX8 as Audio Level Indicator?
  17. Wurlitzer 6150 Organ Tube Amp convert Guitar Amp
  18. help on 12AU7 Preamp circuit
  19. Anyone bought tubes from http://www.nostubestore.com/ ?
  20. Tube pre-amp with exposed tubes?
  21. Using low voltage lamp in power supply
  22. GU 50 monoblock
  23. KT-88 Push Pull with CFB
  24. 12AX7 + ?? Ideas 2A3 // 6L6
  25. Formula for driver current requirement ?
  26. Need a little help with a regulator circuit if you are willing.
  27. Troubleshooting help for 12AQ5 amp
  28. Can anyone help with an ef86 tape preamp mod please?
  29. Herald Amp
  30. To switch B+ or not?
  31. All-tube vs tube/mosfet hybrid ?
  32. 6c33c-b question
  33. 12AT7 substitutes?
  34. 1st project salvaged sears receiver iron need good amp schematic
  35. FM-3 ? About parts replacement in IF stages
  36. simple EL84 parallel?
  37. Finished: Claus Byrtih EL34 amplifier on Isophon BS35 speaker set
  38. Yet another resistor thread
  39. Bogen CHB100 Valve Question
  40. 1st build; Adding load to PT secondary
  41. need help RCA RS 199C
  42. Unusually high Gm
  43. RH84 motorboating, stereo vs mono
  44. Use a tube rectifier for grid bias voltage, AA5 Radio tubes and usage.
  45. Cathode bypass with Long tail pair
  46. new chinese tube manufacturer
  47. Black Gate WKZ - can they be used in these circuits?
  48. Yet another question about HV Maida Regs
  49. Question about vacuum tubes
  50. Scott 299D Calibration
  51. Score! Bag-O-tubes!
  52. Building a tube integrated amp
  53. Audio Note Kits L1 Build...
  54. Need help with old mic amp
  55. Temporary hum
  56. Unidentified Tube - One for the detectives!
  57. Rogues?
  58. What about big tube RV278 Telefunken?
  59. variac variable transformer
  60. Tube amp OPT for Headphone Amp? (impedance matching question)
  61. current needed for 4x50l6 & 3x6sn6
  62. 6N11 tube work at 24V power supply?
  63. Heater voltage 5volt!
  64. help me choose a high end opt for tubelabs SE!
  65. 6L6/807 AB2 triode-- screen drive?
  66. help troubleshooting
  67. Anode Follower Article
  68. ECC802S 12AU7 ECC82 heater question
  69. Books for amplifiers
  70. E180F Preamp
  71. Don Allen Amp's ????
  72. To connect or not to connect..........
  73. Phonostage with tube moving coil
  74. 300b tube Temperature?
  75. Center tap transformer for elevated heater supplies
  76. single ended kt88 fuse blowing after an hour
  77. Help getting more gain from a Peavey Butcher
  78. Radiotron question
  79. suggested use for old telefunken tubes
  80. Using different ouputs for two different drivers
  81. Pete Millett Uniamp with 300b
  82. Cary slp-70
  83. How to combine 2 signals from 2 gain stages
  84. Increase B+ supply
  85. Aikido Tetra Sans Phono PCB
  86. Loadlines and distortion (6S33S/6S41S)
  87. home theatre bypass feature
  88. Doubling the power of hifi tube amplifiers
  89. Can this tube be used in audio amplifier?
  90. 100 V OPT
  91. Help me understand tube chart data
  92. Listening preference....
  93. tube socket legs?
  94. Stand alone gain stage pre-amp
  95. I kinda sorta burned up my K12-G power transformer
  96. RCA-182 Tube Amp
  97. Transformer potting material? what material?
  98. Ultimate 6xEL34 PPP monoblocks? Hopefully with your help :)
  99. tube amp/pre in car?
  100. Thorsten's tube Stage for TDA1541A
  101. Please help me identify these .45 3kv TRW caps
  102. Convert Gates pre-amp to DC filament?
  103. any suggestions for a mid-amp transformer for a hybrid design... like this circuit...
  104. how much C is too much C?
  105. fisher 70AZ
  106. RE: My first attempt at using Tube Cadd
  107. Srpp simple explanation
  108. Driver for a 807 em triode mode...help !!!
  109. 6J6-based SSMH?
  110. Small tube amp based on 6N6P
  111. replacement for Ei 12BH7AEG
  112. Preamp input tube noise
  113. How much is too much for a 6L6GB?
  114. What is the proper way to measure transformer inductance?
  115. Audio Research LS8 mod. to MKII
  116. Futterman stage max input
  117. How important is ESR in PS Caps?
  118. Pushing 6p14p too hard
  119. Who can tell me in Rome where can i buy antique Vacuum tube?
  120. Is the YAQIN MS-12B (220v +-10%) safe to use in UK
  121. Priboi biasing
  122. Whither Westrex ?.
  123. Tube Phono Pre-Amplifiers
  124. Pioneer SA400 -- Headphones hum, speakers don't. Why?
  125. DIY tube amps for surround sounds?
  126. Bad solder joints in Fender Deluxe VM
  127. Rotary switch for attenuator
  128. What is Matise circuit?
  129. 6bq5 red plating
  130. Technical questions about Melos MA-333
  131. What's this in old Fender amps?
  132. idiot proof mono push pull 6l6gc schematic wanted
  133. Passive Preamp Mod help
  134. KT77 OPT impedance
  135. i think i'm thru with 2A3 tubes
  136. VTC4U? Is that the name of the tube tower/shroud seller?
  137. 8417 triode el.. Mod??'s
  138. Gramp's Zenith MLT 15
  139. Class A tube amplifier Kit
  140. IERC tube coolers for EL34 on the Bay
  141. Stromberg Carlson ASR 433
  142. quads11&22 back into service
  143. New Tubes for sale
  144. Best design for Lundahl LL1679/PP
  145. 12U7 LTP vs. 6922 cascode
  146. Need help calculating value of balancing resistors
  147. 12ax7 12au7 preamp
  148. Western Electric 471A...any information ?
  149. Please Reply
  150. tube line preamplifier circuit
  151. 6L6 Ultralinear cathode Follower
  152. Grid current operation
  153. 431 based screen supply
  154. Where did all the money go?
  155. Hyperx soft start any good for valve amp situation?
  156. Class AB2, Class B, and Hifi
  157. PP 6b4g bad / distorted channel diagnostics
  158. Transformer usage ??
  159. Phono Amplifier
  160. Need EL84 Brand Identification
  161. RCA Octagon dating
  162. Most Accurate Bias Testing Method
  163. ASL AQ1003DT schematic or manual?
  164. Penta brand 6L6GC info?
  165. Mod to SE 6SN7 - 6V6 amp
  166. adjust filament ECC82/83
  167. Clear out of old valves - advice needed
  168. Help ID this OPT
  169. Help? 6n23p cathode follower
  170. DC Heater Caps
  171. Load Line and Biasing for Class AB 6550 power amp
  172. Amp project help needed
  173. LTP with CCS and feedback
  174. Clarion simple 2A3 amplifier
  175. Another question about plate curves and pentode load lines
  176. 5V Indrect Heated Rectifiers?
  177. Easy CCS
  178. I just setup my mimiwat n3 with a pair of Energy cb-20 speakers
  179. First watt F2/little dot MK III
  180. Old Motorola console tube amp, fuse problem
  181. How much performance difference w/ this config?
  182. 6P8S datasheet, help !!
  183. DHT IMD
  184. How to calculate OPT transformer windings
  185. Newbie Questions
  186. Building a Harmonic Distortion Generator
  187. plate curves and max ratings questions
  188. Heater-cathode DC conduction resistance
  189. EL 84 Capacitor Equivalent
  190. How do they get away with this?
  191. well-loved Sherwood "popping" prob mouse pee
  192. Tube Newb: 12sn7 and 12sl7 interchangeable?
  193. Totem-Pole OTL with 6c33c tubes and 0.079 % THD at 20 Watt
  194. sonic frontiers sfm-75
  195. Chinese tube amp mods?
  196. PSU for JE Labs Simple 45/2A3
  197. frustrated ,Bought a 845 NOS - springs are discconnected need help
  198. Running water sound in amp
  199. Peerless 16458 output transformers
  200. Noisy high-gain preamplifier
  201. Cheap ($235) SE Tube amp kit, transformer and chassis on ebay
  202. 2A3 single plate RCA/Cunningham tube prices
  203. output transformer power rating
  204. Rectifier Foward Voltage?
  205. Help With 6Y6 amp
  206. What are 12AT7/ECC81 power drivers ?
  207. Help with these Russian GU50 tube amplifier
  208. Eico ST-70 Supermods
  209. Mullard PZ30, how's its Peak Inverse Voltage?
  210. Optical compressor project
  211. 12AU7 in cascode configuration
  212. Bad tube in old record player?
  213. check this out glas-fiber cartridge
  214. cathode caps
  215. Aikido HV PSU
  216. Distance between 6N23P and a cap?
  217. solid and strand wire in amp
  218. Phillips Music Sudio
  219. LTPI Grid stopper value affect on harmonics
  220. WTF. What's going on here.
  221. 7-pin pcb mount socket with shield?
  222. SIMPLE remote volume control with alps motorized pot
  223. Hybrid Partial Feedback SE Amplifier
  224. HV +B Connector
  225. Eico experts needed: PEC in 2050 driver stage bad
  226. Best sounding linestage/buffer topology?
  227. Using ECC88
  228. what tubes should I upgrade a mini watt with I currently have the stock 6p14 and 6bq5
  229. EL34 cathode bias PA
  230. Tube Amp Art
  231. Quick OT Question
  232. Power Transformer
  233. ampex 354? some questions
  234. Good power Filter Capacitors
  235. Fisher 101d blow fuse
  236. Valco Model 1200 help
  237. Jolida 502A lost output...?
  238. Codename "Tapyrus", my ongoing DIY headphone amp
  239. RIAA preamp with DHTs
  240. Dynaco Mark VI feedback values
  241. Eagle PCB
  242. Ode to Tube Rollers
  243. switching tubes: good or bad idea?
  244. COnn Organ Amp DI266 Info 12v6GT tubes
  245. Please help me figure out why my plate voltage is too high here
  246. Yaqin MC10L Question for the Guru's
  247. PP PSU: How much ripple is too much ripple?
  248. Bypass caps in choke PS
  249. Grounded Grid TRANSCENDENT line stage
  250. Battery Powered Tube Amp

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