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  1. Multi Section Cap....diy?
  2. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  3. Tube rectifier to Solid state Diodes exchange
  4. Hickok 533A help
  5. Custom Cards For B&K 675 Tester
  6. EMC Model 200 Tube Tester Any Info Pls
  7. Bada PH-1 simple box mod
  8. Tubes Rectifier Help?
  9. How to make sense of LTSpice FFT analysis?
  10. Cascode with local feedback
  11. amps
  12. how to preserve copper plates?
  13. Stereo EL34 amplifier
  14. tube amp transformer identification
  15. SA 3000 Counterpoint
  16. Beginner needs advices for 807 PP project
  17. Heater Power Supply Pspice model
  18. FWCT Rectification
  19. dc or not dc
  20. OTL for dummies.
  21. TCJ Cathode-Coupled Amplifier
  22. 845 Low voltage SE AMP
  23. Vacuum Tube Computer Simulation Modeling
  24. Getting a vintage amp to work
  25. Switched DC/DCconverter for B+
  26. What can I do with this?
  27. Super Pas Two
  28. pspice model of 811A
  29. Question on what is more important B+ or Plate Voltage
  30. Can I trust SPICE?
  31. Power supply filter mod
  32. Does antone interested xxx PCB groupbuy ?
  33. 1 signal ground or two?
  34. #47......
  35. Hammond 1650F
  36. 100 watt KT88/6550 Designs
  37. What glue to use for tube glass bulb + base
  38. Tube filaments (heaters) power supply
  39. Quick Ecl86/6gw8 Amp
  40. Need help on eq. hook up for new tube system
  41. Alternatives to the Dynaco ST-70
  42. I need some eq. hook up expert advice please!
  43. Please help identify which plug I need for this socket
  44. Svetlana KT88 winged C's failings
  45. PP amp using 6p15P
  46. Time for another round of "Criticise my Circuit"... err..I mean
  47. Adding a parallel feed on DRD
  48. How hot can resistor stands?
  49. Hybrid amplifier A2 class
  50. Diodes on power supply output for voltage drop?
  51. Converting from single ended parafeed to differential
  52. micro-amp SE with 2,5k OPT+
  53. Unknown Tube Amp
  54. Aikido AC Heater Supply
  55. Help me find some odd looking rectifiers!
  56. So, you may have been wondering...(813 Content !)
  57. Just sharing my 26 experience last night...
  58. Simple 5842-45 SET Amp Design Idea
  59. Yamamoto teflon sockets
  60. new thread, 6BM8 PP build begins...
  61. KT88 Heater Current
  62. 150V plate output tubes
  63. Newbie need to help
  64. Help me please
  65. Elekit TU-870 help
  66. Looking for schematic of Audible Illusion Modulus 3A preamp
  67. Junker Box amp
  68. aikido hybrid with 5 A bias
  69. Shall we compile a list?
  70. drift in direct coupled tubes
  71. Hammond 2XX vs 3XX Power Tranny Questions
  72. Help with this transformer please...
  73. Capacitor upgrade in Paragon 12A
  74. Light bulbs as cathode resistors?
  75. Favorite Threads and Posts in "Tubes" Forum
  76. I need 12v DC- whats the best option?
  77. Beard P35 and Tubes Replacement
  78. Graphic 1/3 Octave Tube Equaliser
  79. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  80. Power Supply Design
  81. Gomes amp
  82. pignose g40v power transformer
  83. Grid battery biased SE output stages
  84. KT88 amp schematic/parts list
  85. Wire Wrap connections for point to point
  86. Aikido Tubes
  87. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  88. Schematic Question
  89. EL34 as triode?
  90. Linestage Questions
  91. Help! Building Jax's HFTA
  92. Gobs of AC on ISCO 494
  93. Change step up ratio of input transformer?
  94. LCR RIAA rebuild
  95. common mode choke question
  96. Choosing Choke
  97. Input impedance
  98. Hey Tubelab, Transformer Question
  99. Hybrid Rectifier Check Please !
  100. 1st tube project, tubalizer?
  101. 1st Time project - Report 1
  102. ED-8000 set amp
  103. Hitachi v-202 scope
  104. Cheap and nice looking SE OPT
  105. How much difference 0.22 vs 0.33 cap?
  106. Tubelab SimpleSE
  107. 813 final design?
  108. HPHV regulator, designed by Emile Sprenger
  109. Counterpoint tube amps
  110. SS or tube voltage amplifying stages in an amp with tube output?
  111. 24V Aikido --> 6GM8 with Buffer
  112. Motorboating in Dynaco ST-70
  113. Does such a tube exist?
  114. Noisy PSU?
  115. Bell & Howell amp
  116. Valve Amp with soild state front end
  117. Controlling transient response
  118. Transcendar Budget SE Transformers
  119. Opinion on New Sensor 6SN7GTB?
  120. Determining optimal OT turns ratio
  121. Splitting up the Power Amp
  122. Sowter 5113
  123. Cascoded 6N6P
  124. MachMat or Tentlabs Heater Supply for 300B
  125. Common mode filtering for heater supplies.
  126. Distortion.
  127. 83 rectifier peak repetitive current?
  128. 813 Project has begun !
  129. C3G PX25 DRD - Will it work
  130. 6J5 (Metal Tubes) ....something goes around inside
  131. common-mode chokes
  132. EL-34 and 100k pot
  133. Scott 299 (late) OPT's
  134. Tube magazines
  135. PP plate-choke?
  136. More Phase Splitting Questions
  137. Concertina sanity check
  138. Transformer Specs
  139. The Aikido or Moskido??
  140. KT88 PP suggestion
  141. Ultrapath line amp
  142. Gross loudspeaker cone movement when using tube amps.
  143. Pre-amp power iron advice??
  144. Class A 8417 Amp
  145. DHT output tubes and DC heating
  146. rock music and SE?
  147. Disadvantages of using Zobel and Series notch filter ?
  148. old days source
  149. Mu-follower vs common cathode w/- active load
  150. K40 or K42 Russian PIO: what would you use/recommend?
  151. CCS turning off prematurely?
  152. ESL amp again!
  153. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  154. Does anyone know the output transformer specs of the...
  155. SE EL84 project for my friend
  156. SE amplifier - How much power?
  157. what speakers do you use?
  158. A Tube amp for a Hostille Tube Enviornment
  159. practical choice for an amp
  160. Simple cathode CCS
  161. 2A3s in push pull; class A
  162. 5 VDC heater question
  163. Power transformer snerring.
  164. Subminiature Tube & Tripath Hybrid Integrated
  165. 211
  166. Which of these output tubes?
  167. High Voltage Heater info
  168. 6SL7 in place of a 12AX7?
  169. DHT Tubes
  170. Driving 6AQ5's
  171. schematic wanted
  172. 807s replacing 6L6GCs
  173. Shielded vs twisted pair in internal wiring
  174. tube basics: computing mu and transconductance
  175. Aluminium vs steel chassis
  176. Etf06 & 07
  177. FU 13 tubes
  178. Good Souinding Direct Replacement For 325 / OP 37
  179. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  180. The Russian 5U4M is a 5AR4 equivalent ?
  181. WE427A Cold Cathode Diode
  182. reversing polarity in regulated B+ and other question
  183. Anthem Integrated 1
  184. Hickok 800 settings
  185. Advice/Help - Cap upgrade
  186. question on old tube sockets
  187. fisher sa-16 very red tube and?
  188. pros/cons of a 845 VS 211
  189. Preamp Power and Voltage Output
  190. Anyone seen these 6L6GCs before?
  191. online transformer info for newbies
  192. High voltage pseudo-triode
  193. Yes, again: mains-powered KILLER amp without a power transformer.
  194. Quicksilver 300b monoblock (KT88 conversion)
  195. Output transformer (SE) - DIY
  196. is Gary Pimm still around?
  197. carbon composition - 2 types
  198. Input attenuation on Leak amp
  199. 101D Sockets
  200. PC86, '88 RF Amplifiers
  201. Jolida SJ-302A tube swap
  202. Inductance for tweeter OPT
  203. Help me.......What is the 6SN7 ???????
  204. high DCR secondary (power transformer)
  205. Transformer power formula Help???
  206. 2A3 OTL 800 Ohm Speaker
  207. Trying to find specs on transformer core material
  208. 12AX7 suggestions?
  209. power supply (cap input)
  210. is it safe to connect these secondaries in series?
  211. Peter Millett's Uniamp with KT88
  212. Mystery transformer
  213. Can I phase split like this?
  214. How to model psud2 using tube regulator?
  215. Choke-loaded 6C33C stage
  216. EL84 as both driver and output stage.
  217. Silvertone (Sears) stereo amp
  218. Chasing hum in a new tube amp
  219. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  220. 6bx7gt Se Amp
  221. Beard P100 Bias Lights
  222. Metasonix TS-21 modulator
  223. help with diyparadiso schematics
  224. electrostatic shield - nice to have or recommended or doesn't matter?
  225. Simple method for 240V from 240V line
  226. Audiophile bibliophilia nervosa
  227. Help with amp layout
  228. Why triode Mk3 is louder than stock Mk3
  229. Seduction or Cornet for phono???
  230. Please review my 6AQ5 Amp
  231. 832A PP Amp LTP
  232. Checklist to observe before applying the mains
  233. C3g driving 2a3: Triode or pentode?
  234. psud2 question and Fi Primer's 211 circuit
  235. Jolida JD-301A & Jadis DPL
  236. Headphones with a Tube Amp
  237. 6S3B-V Wire-Ended Single-Triode tube
  238. Anode stoppers
  239. Weird Quad II mains transformer help
  240. Mullard 5-20 parts list
  241. has anyone DIYed a Citation 2?
  242. Bogen/plexi conversion question
  243. Matched pair - different brands
  244. ERIC Mod 3460P Restore
  245. PV12 Preamplifier
  246. Grandma's old Capitol Console
  247. Music Angel
  248. What is the version of 45
  249. Heathkit potted power transformer question
  250. Thermionic Cooling?

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