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  1. Please help identify which plug I need for this socket
  2. Svetlana KT88 winged C's failings
  3. PP amp using 6p15P
  4. Time for another round of "Criticise my Circuit"... err..I mean
  5. Adding a parallel feed on DRD
  6. How hot can resistor stands?
  7. Hybrid amplifier A2 class
  8. Diodes on power supply output for voltage drop?
  9. Converting from single ended parafeed to differential
  10. micro-amp SE with 2,5k OPT+
  11. Unknown Tube Amp
  12. Aikido AC Heater Supply
  13. Help me find some odd looking rectifiers!
  14. So, you may have been wondering...(813 Content !)
  15. Just sharing my 26 experience last night...
  16. Simple 5842-45 SET Amp Design Idea
  17. Yamamoto teflon sockets
  18. new thread, 6BM8 PP build begins...
  19. KT88 Heater Current
  20. 150V plate output tubes
  21. Newbie need to help
  22. Help me please
  23. Elekit TU-870 help
  24. Looking for schematic of Audible Illusion Modulus 3A preamp
  25. Junker Box amp
  26. aikido hybrid with 5 A bias
  27. Shall we compile a list?
  28. drift in direct coupled tubes
  29. Hammond 2XX vs 3XX Power Tranny Questions
  30. Help with this transformer please...
  31. Capacitor upgrade in Paragon 12A
  32. Light bulbs as cathode resistors?
  33. Favorite Threads and Posts in "Tubes" Forum
  34. I need 12v DC- whats the best option?
  35. Beard P35 and Tubes Replacement
  36. Graphic 1/3 Octave Tube Equaliser
  37. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  38. Power Supply Design
  39. Gomes amp
  40. pignose g40v power transformer
  41. Grid battery biased SE output stages
  42. KT88 amp schematic/parts list
  43. Wire Wrap connections for point to point
  44. Aikido Tubes
  45. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  46. Schematic Question
  47. EL34 as triode?
  48. Linestage Questions
  49. Help! Building Jax's HFTA
  50. Gobs of AC on ISCO 494
  51. Change step up ratio of input transformer?
  52. LCR RIAA rebuild
  53. common mode choke question
  54. Choosing Choke
  55. Input impedance
  56. Hey Tubelab, Transformer Question
  57. Hybrid Rectifier Check Please !
  58. 1st tube project, tubalizer?
  59. 1st Time project - Report 1
  60. ED-8000 set amp
  61. Hitachi v-202 scope
  62. Cheap and nice looking SE OPT
  63. How much difference 0.22 vs 0.33 cap?
  64. Tubelab SimpleSE
  65. 813 final design?
  66. HPHV regulator, designed by Emile Sprenger
  67. Counterpoint tube amps
  68. SS or tube voltage amplifying stages in an amp with tube output?
  69. 24V Aikido --> 6GM8 with Buffer
  70. Motorboating in Dynaco ST-70
  71. Does such a tube exist?
  72. Noisy PSU?
  73. Bell & Howell amp
  74. Valve Amp with soild state front end
  75. Controlling transient response
  76. Transcendar Budget SE Transformers
  77. Opinion on New Sensor 6SN7GTB?
  78. Determining optimal OT turns ratio
  79. Splitting up the Power Amp
  80. Sowter 5113
  81. Cascoded 6N6P
  82. MachMat or Tentlabs Heater Supply for 300B
  83. Common mode filtering for heater supplies.
  84. Distortion.
  85. 83 rectifier peak repetitive current?
  86. 813 Project has begun !
  87. C3G PX25 DRD - Will it work
  88. 6J5 (Metal Tubes) ....something goes around inside
  89. common-mode chokes
  90. EL-34 and 100k pot
  91. Scott 299 (late) OPT's
  92. Tube magazines
  93. PP plate-choke?
  94. More Phase Splitting Questions
  95. Concertina sanity check
  96. Transformer Specs
  97. The Aikido or Moskido??
  98. KT88 PP suggestion
  99. Ultrapath line amp
  100. Gross loudspeaker cone movement when using tube amps.
  101. Pre-amp power iron advice??
  102. Class A 8417 Amp
  103. DHT output tubes and DC heating
  104. rock music and SE?
  105. Disadvantages of using Zobel and Series notch filter ?
  106. old days source
  107. Mu-follower vs common cathode w/- active load
  108. K40 or K42 Russian PIO: what would you use/recommend?
  109. CCS turning off prematurely?
  110. ESL amp again!
  111. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  112. Does anyone know the output transformer specs of the...
  113. SE EL84 project for my friend
  114. SE amplifier - How much power?
  115. what speakers do you use?
  116. A Tube amp for a Hostille Tube Enviornment
  117. practical choice for an amp
  118. Simple cathode CCS
  119. 2A3s in push pull; class A
  120. 5 VDC heater question
  121. Power transformer snerring.
  122. Subminiature Tube & Tripath Hybrid Integrated
  123. 211
  124. Which of these output tubes?
  125. High Voltage Heater info
  126. 6SL7 in place of a 12AX7?
  127. DHT Tubes
  128. Driving 6AQ5's
  129. schematic wanted
  130. 807s replacing 6L6GCs
  131. Shielded vs twisted pair in internal wiring
  132. tube basics: computing mu and transconductance
  133. Aluminium vs steel chassis
  134. Etf06 & 07
  135. FU 13 tubes
  136. Good Souinding Direct Replacement For 325 / OP 37
  137. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  138. The Russian 5U4M is a 5AR4 equivalent ?
  139. WE427A Cold Cathode Diode
  140. reversing polarity in regulated B+ and other question
  141. Anthem Integrated 1
  142. Hickok 800 settings
  143. Advice/Help - Cap upgrade
  144. question on old tube sockets
  145. fisher sa-16 very red tube and?
  146. pros/cons of a 845 VS 211
  147. Preamp Power and Voltage Output
  148. Anyone seen these 6L6GCs before?
  149. online transformer info for newbies
  150. High voltage pseudo-triode
  151. Yes, again: mains-powered KILLER amp without a power transformer.
  152. Quicksilver 300b monoblock (KT88 conversion)
  153. Output transformer (SE) - DIY
  154. is Gary Pimm still around?
  155. carbon composition - 2 types
  156. Input attenuation on Leak amp
  157. 101D Sockets
  158. PC86, '88 RF Amplifiers
  159. Jolida SJ-302A tube swap
  160. Inductance for tweeter OPT
  161. Help me.......What is the 6SN7 ???????
  162. high DCR secondary (power transformer)
  163. Transformer power formula Help???
  164. 2A3 OTL 800 Ohm Speaker
  165. Trying to find specs on transformer core material
  166. 12AX7 suggestions?
  167. power supply (cap input)
  168. is it safe to connect these secondaries in series?
  169. Peter Millett's Uniamp with KT88
  170. Mystery transformer
  171. Can I phase split like this?
  172. How to model psud2 using tube regulator?
  173. Choke-loaded 6C33C stage
  174. EL84 as both driver and output stage.
  175. Silvertone (Sears) stereo amp
  176. Chasing hum in a new tube amp
  177. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  178. 6bx7gt Se Amp
  179. Beard P100 Bias Lights
  180. Metasonix TS-21 modulator
  181. help with diyparadiso schematics
  182. electrostatic shield - nice to have or recommended or doesn't matter?
  183. Simple method for 240V from 240V line
  184. Audiophile bibliophilia nervosa
  185. Help with amp layout
  186. Why triode Mk3 is louder than stock Mk3
  187. Seduction or Cornet for phono???
  188. Please review my 6AQ5 Amp
  189. 832A PP Amp LTP
  190. Checklist to observe before applying the mains
  191. C3g driving 2a3: Triode or pentode?
  192. psud2 question and Fi Primer's 211 circuit
  193. Jolida JD-301A & Jadis DPL
  194. Headphones with a Tube Amp
  195. 6S3B-V Wire-Ended Single-Triode tube
  196. Anode stoppers
  197. Weird Quad II mains transformer help
  198. Mullard 5-20 parts list
  199. has anyone DIYed a Citation 2?
  200. Bogen/plexi conversion question
  201. Matched pair - different brands
  202. ERIC Mod 3460P Restore
  203. PV12 Preamplifier
  204. Grandma's old Capitol Console
  205. Music Angel
  206. What is the version of 45
  207. Aikido for guitar?
  208. Heathkit potted power transformer question
  209. Thermionic Cooling?
  210. What have the finest sound, the PX4 or the 45 ?
  211. value of a cap between driver tube and output tubes
  212. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  213. Mini EL84 Amp Done
  214. Overcoming Miller
  215. Heathkit Schematic model AA-50 needed
  216. Help me choose please
  217. Mono Class A SE Schematics
  218. Irish DIY Meet.
  219. Sizing PP OPT
  220. 6BQ5/EL90 guitar amp schematics wanted
  221. Do SE transfomers get hot?
  222. Aikido Questions
  223. LTP with interstage trafo
  224. 6BQ5 Push-Pull amplifier
  225. Amplifier input
  226. C#@$ quality 6L6EH's
  227. Mains toroids appear to be great for audio
  228. High bias point.
  229. ebay amp
  230. GU 50 output modification
  231. 6C41Cs Class-A PP
  232. My First Big Amp
  233. sv572-10
  234. Stupid PAS-2 Pot Questions
  235. Old electronics articles
  236. UL Feedback
  237. who know fd23 and fd422 tubes?
  238. Laptop amplifier
  239. Thoughts Of Modifying My First Tube Amp.
  240. Quick question for Eli Duttman (or others!)
  241. Blackened GZ32 glass envelopes
  242. Are these vintage vacuum tubes suitable.....
  243. Tube XP8109-02?!
  244. peak current 300B heater with start up
  245. Microphonic phono preamplifier
  246. Pentode Plate Load
  247. what monoblocks to build?
  248. All tube direct box
  249. max b+ for 6V6
  250. What speakers to go with tubes ??

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