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  1. Vacuum Tube Computer Simulation Modeling
  2. Getting a vintage amp to work
  3. Switched DC/DCconverter for B+
  4. What can I do with this?
  5. Super Pas Two
  6. pspice model of 811A
  7. Question on what is more important B+ or Plate Voltage
  8. Can I trust SPICE?
  9. Power supply filter mod
  10. Does antone interested xxx PCB groupbuy ?
  11. 1 signal ground or two?
  12. Peavey Heritage VTX - Schematics
  13. #47......
  14. Hammond 1650F
  15. 100 watt KT88/6550 Designs
  16. What glue to use for tube glass bulb + base
  17. Tube filaments (heaters) power supply
  18. Quick Ecl86/6gw8 Amp
  19. Need help on eq. hook up for new tube system
  20. Alternatives to the Dynaco ST-70
  21. I need some eq. hook up expert advice please!
  22. Please help identify which plug I need for this socket
  23. Svetlana KT88 winged C's failings
  24. PP amp using 6p15P
  25. Time for another round of "Criticise my Circuit"... err..I mean
  26. Adding a parallel feed on DRD
  27. How hot can resistor stands?
  28. Hybrid amplifier A2 class
  29. Diodes on power supply output for voltage drop?
  30. Converting from single ended parafeed to differential
  31. micro-amp SE with 2,5k OPT+
  32. Unknown Tube Amp
  33. Aikido AC Heater Supply
  34. Help me find some odd looking rectifiers!
  35. So, you may have been wondering...(813 Content !)
  36. Just sharing my 26 experience last night...
  37. Simple 5842-45 SET Amp Design Idea
  38. Yamamoto teflon sockets
  39. new thread, 6BM8 PP build begins...
  40. KT88 Heater Current
  41. 150V plate output tubes
  42. Newbie need to help
  43. Help me please
  44. Elekit TU-870 help
  45. Looking for schematic of Audible Illusion Modulus 3A preamp
  46. Junker Box amp
  47. aikido hybrid with 5 A bias
  48. Shall we compile a list?
  49. drift in direct coupled tubes
  50. Hammond 2XX vs 3XX Power Tranny Questions
  51. Help with this transformer please...
  52. Capacitor upgrade in Paragon 12A
  53. Light bulbs as cathode resistors?
  54. Favorite Threads and Posts in "Tubes" Forum
  55. I need 12v DC- whats the best option?
  56. Beard P35 and Tubes Replacement
  57. Graphic 1/3 Octave Tube Equaliser
  58. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  59. Power Supply Design
  60. Gomes amp
  61. pignose g40v power transformer
  62. Grid battery biased SE output stages
  63. KT88 amp schematic/parts list
  64. Wire Wrap connections for point to point
  65. Aikido Tubes
  66. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  67. Schematic Question
  68. EL34 as triode?
  69. Linestage Questions
  70. Help! Building Jax's HFTA
  71. Gobs of AC on ISCO 494
  72. Change step up ratio of input transformer?
  73. LCR RIAA rebuild
  74. common mode choke question
  75. Choosing Choke
  76. Input impedance
  77. Hey Tubelab, Transformer Question
  78. Hybrid Rectifier Check Please !
  79. 1st tube project, tubalizer?
  80. 1st Time project - Report 1
  81. ED-8000 set amp
  82. Hitachi v-202 scope
  83. Cheap and nice looking SE OPT
  84. How much difference 0.22 vs 0.33 cap?
  85. Tubelab SimpleSE
  86. 813 final design?
  87. HPHV regulator, designed by Emile Sprenger
  88. Counterpoint tube amps
  89. SS or tube voltage amplifying stages in an amp with tube output?
  90. 24V Aikido --> 6GM8 with Buffer
  91. Motorboating in Dynaco ST-70
  92. Does such a tube exist?
  93. Noisy PSU?
  94. Bell & Howell amp
  95. Valve Amp with soild state front end
  96. Controlling transient response
  97. Transcendar Budget SE Transformers
  98. Opinion on New Sensor 6SN7GTB?
  99. Determining optimal OT turns ratio
  100. Splitting up the Power Amp
  101. Sowter 5113
  102. Cascoded 6N6P
  103. MachMat or Tentlabs Heater Supply for 300B
  104. Common mode filtering for heater supplies.
  105. Distortion.
  106. 83 rectifier peak repetitive current?
  107. 813 Project has begun !
  108. C3G PX25 DRD - Will it work
  109. 6J5 (Metal Tubes) ....something goes around inside
  110. common-mode chokes
  111. EL-34 and 100k pot
  112. Scott 299 (late) OPT's
  113. Tube magazines
  114. PP plate-choke?
  115. More Phase Splitting Questions
  116. Concertina sanity check
  117. Transformer Specs
  118. The Aikido or Moskido??
  119. KT88 PP suggestion
  120. Ultrapath line amp
  121. Gross loudspeaker cone movement when using tube amps.
  122. Pre-amp power iron advice??
  123. Class A 8417 Amp
  124. DHT output tubes and DC heating
  125. rock music and SE?
  126. Disadvantages of using Zobel and Series notch filter ?
  127. old days source
  128. Mu-follower vs common cathode w/- active load
  129. K40 or K42 Russian PIO: what would you use/recommend?
  130. CCS turning off prematurely?
  131. ESL amp again!
  132. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  133. Does anyone know the output transformer specs of the...
  134. SE EL84 project for my friend
  135. SE amplifier - How much power?
  136. what speakers do you use?
  137. A Tube amp for a Hostille Tube Enviornment
  138. practical choice for an amp
  139. Simple cathode CCS
  140. 2A3s in push pull; class A
  141. 5 VDC heater question
  142. Power transformer snerring.
  143. Subminiature Tube & Tripath Hybrid Integrated
  144. 211
  145. Which of these output tubes?
  146. High Voltage Heater info
  147. 6SL7 in place of a 12AX7?
  148. DHT Tubes
  149. Driving 6AQ5's
  150. schematic wanted
  151. 807s replacing 6L6GCs
  152. Shielded vs twisted pair in internal wiring
  153. tube basics: computing mu and transconductance
  154. Aluminium vs steel chassis
  155. Etf06 & 07
  156. FU 13 tubes
  157. Good Souinding Direct Replacement For 325 / OP 37
  158. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  159. The Russian 5U4M is a 5AR4 equivalent ?
  160. WE427A Cold Cathode Diode
  161. reversing polarity in regulated B+ and other question
  162. Anthem Integrated 1
  163. Hickok 800 settings
  164. Advice/Help - Cap upgrade
  165. question on old tube sockets
  166. fisher sa-16 very red tube and?
  167. pros/cons of a 845 VS 211
  168. Preamp Power and Voltage Output
  169. Anyone seen these 6L6GCs before?
  170. online transformer info for newbies
  171. High voltage pseudo-triode
  172. Yes, again: mains-powered KILLER amp without a power transformer.
  173. Quicksilver 300b monoblock (KT88 conversion)
  174. Output transformer (SE) - DIY
  175. is Gary Pimm still around?
  176. carbon composition - 2 types
  177. Input attenuation on Leak amp
  178. 101D Sockets
  179. PC86, '88 RF Amplifiers
  180. Jolida SJ-302A tube swap
  181. Inductance for tweeter OPT
  182. Help me.......What is the 6SN7 ???????
  183. high DCR secondary (power transformer)
  184. Transformer power formula Help???
  185. 2A3 OTL 800 Ohm Speaker
  186. Trying to find specs on transformer core material
  187. 12AX7 suggestions?
  188. power supply (cap input)
  189. is it safe to connect these secondaries in series?
  190. Peter Millett's Uniamp with KT88
  191. Mystery transformer
  192. Can I phase split like this?
  193. How to model psud2 using tube regulator?
  194. Choke-loaded 6C33C stage
  195. EL84 as both driver and output stage.
  196. Silvertone (Sears) stereo amp
  197. Chasing hum in a new tube amp
  198. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  199. 6bx7gt Se Amp
  200. Beard P100 Bias Lights
  201. Metasonix TS-21 modulator
  202. help with diyparadiso schematics
  203. electrostatic shield - nice to have or recommended or doesn't matter?
  204. Simple method for 240V from 240V line
  205. Audiophile bibliophilia nervosa
  206. Help with amp layout
  207. Why triode Mk3 is louder than stock Mk3
  208. Seduction or Cornet for phono???
  209. Please review my 6AQ5 Amp
  210. 832A PP Amp LTP
  211. Checklist to observe before applying the mains
  212. C3g driving 2a3: Triode or pentode?
  213. psud2 question and Fi Primer's 211 circuit
  214. Jolida JD-301A & Jadis DPL
  215. Headphones with a Tube Amp
  216. 6S3B-V Wire-Ended Single-Triode tube
  217. Anode stoppers
  218. Weird Quad II mains transformer help
  219. Mullard 5-20 parts list
  220. has anyone DIYed a Citation 2?
  221. Bogen/plexi conversion question
  222. Matched pair - different brands
  223. ERIC Mod 3460P Restore
  224. PV12 Preamplifier
  225. Grandma's old Capitol Console
  226. Music Angel
  227. What is the version of 45
  228. Aikido for guitar?
  229. Heathkit potted power transformer question
  230. Thermionic Cooling?
  231. What have the finest sound, the PX4 or the 45 ?
  232. value of a cap between driver tube and output tubes
  233. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  234. Mini EL84 Amp Done
  235. Overcoming Miller
  236. Heathkit Schematic model AA-50 needed
  237. Help me choose please
  238. Mono Class A SE Schematics
  239. Irish DIY Meet.
  240. Sizing PP OPT
  241. 6BQ5/EL90 guitar amp schematics wanted
  242. Do SE transfomers get hot?
  243. Aikido Questions
  244. LTP with interstage trafo
  245. 6BQ5 Push-Pull amplifier
  246. Amplifier input
  247. C#@$ quality 6L6EH's
  248. Mains toroids appear to be great for audio
  249. High bias point.
  250. ebay amp

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