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  1. Help me find some odd looking rectifiers!
  2. So, you may have been wondering...(813 Content !)
  3. Just sharing my 26 experience last night...
  4. Simple 5842-45 SET Amp Design Idea
  5. Yamamoto teflon sockets
  6. new thread, 6BM8 PP build begins...
  7. KT88 Heater Current
  8. 150V plate output tubes
  9. Newbie need to help
  10. Help me please
  11. Elekit TU-870 help
  12. Looking for schematic of Audible Illusion Modulus 3A preamp
  13. Junker Box amp
  14. aikido hybrid with 5 A bias
  15. Shall we compile a list?
  16. drift in direct coupled tubes
  17. Hammond 2XX vs 3XX Power Tranny Questions
  18. Help with this transformer please...
  19. Capacitor upgrade in Paragon 12A
  20. Light bulbs as cathode resistors?
  21. Favorite Threads and Posts in "Tubes" Forum
  22. I need 12v DC- whats the best option?
  23. Beard P35 and Tubes Replacement
  24. Graphic 1/3 Octave Tube Equaliser
  25. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  26. Power Supply Design
  27. Gomes amp
  28. pignose g40v power transformer
  29. Grid battery biased SE output stages
  30. KT88 amp schematic/parts list
  31. Wire Wrap connections for point to point
  32. Aikido Tubes
  33. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  34. Schematic Question
  35. EL34 as triode?
  36. Linestage Questions
  37. Help! Building Jax's HFTA
  38. Gobs of AC on ISCO 494
  39. Change step up ratio of input transformer?
  40. LCR RIAA rebuild
  41. common mode choke question
  42. Choosing Choke
  43. Input impedance
  44. Hey Tubelab, Transformer Question
  45. Hybrid Rectifier Check Please !
  46. 1st tube project, tubalizer?
  47. 1st Time project - Report 1
  48. ED-8000 set amp
  49. Hitachi v-202 scope
  50. Cheap and nice looking SE OPT
  51. How much difference 0.22 vs 0.33 cap?
  52. Tubelab SimpleSE
  53. 813 final design?
  54. HPHV regulator, designed by Emile Sprenger
  55. Counterpoint tube amps
  56. SS or tube voltage amplifying stages in an amp with tube output?
  57. 24V Aikido --> 6GM8 with Buffer
  58. Motorboating in Dynaco ST-70
  59. Does such a tube exist?
  60. Noisy PSU?
  61. Bell & Howell amp
  62. Valve Amp with soild state front end
  63. Controlling transient response
  64. Transcendar Budget SE Transformers
  65. Opinion on New Sensor 6SN7GTB?
  66. Determining optimal OT turns ratio
  67. Splitting up the Power Amp
  68. Sowter 5113
  69. Cascoded 6N6P
  70. MachMat or Tentlabs Heater Supply for 300B
  71. Common mode filtering for heater supplies.
  72. Distortion.
  73. 83 rectifier peak repetitive current?
  74. 813 Project has begun !
  75. C3G PX25 DRD - Will it work
  76. 6J5 (Metal Tubes) ....something goes around inside
  77. common-mode chokes
  78. EL-34 and 100k pot
  79. Scott 299 (late) OPT's
  80. Tube magazines
  81. PP plate-choke?
  82. More Phase Splitting Questions
  83. Concertina sanity check
  84. Transformer Specs
  85. The Aikido or Moskido??
  86. KT88 PP suggestion
  87. Ultrapath line amp
  88. Gross loudspeaker cone movement when using tube amps.
  89. Pre-amp power iron advice??
  90. Class A 8417 Amp
  91. DHT output tubes and DC heating
  92. rock music and SE?
  93. Disadvantages of using Zobel and Series notch filter ?
  94. old days source
  95. Mu-follower vs common cathode w/- active load
  96. K40 or K42 Russian PIO: what would you use/recommend?
  97. CCS turning off prematurely?
  98. ESL amp again!
  99. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  100. Does anyone know the output transformer specs of the...
  101. SE EL84 project for my friend
  102. SE amplifier - How much power?
  103. what speakers do you use?
  104. A Tube amp for a Hostille Tube Enviornment
  105. practical choice for an amp
  106. Simple cathode CCS
  107. 2A3s in push pull; class A
  108. 5 VDC heater question
  109. Power transformer snerring.
  110. Subminiature Tube & Tripath Hybrid Integrated
  111. 211
  112. Which of these output tubes?
  113. High Voltage Heater info
  114. 6SL7 in place of a 12AX7?
  115. DHT Tubes
  116. Driving 6AQ5's
  117. schematic wanted
  118. 807s replacing 6L6GCs
  119. Shielded vs twisted pair in internal wiring
  120. tube basics: computing mu and transconductance
  121. Aluminium vs steel chassis
  122. Etf06 & 07
  123. FU 13 tubes
  124. Good Souinding Direct Replacement For 325 / OP 37
  125. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  126. The Russian 5U4M is a 5AR4 equivalent ?
  127. WE427A Cold Cathode Diode
  128. reversing polarity in regulated B+ and other question
  129. Anthem Integrated 1
  130. Hickok 800 settings
  131. Advice/Help - Cap upgrade
  132. question on old tube sockets
  133. fisher sa-16 very red tube and?
  134. pros/cons of a 845 VS 211
  135. Preamp Power and Voltage Output
  136. Anyone seen these 6L6GCs before?
  137. online transformer info for newbies
  138. High voltage pseudo-triode
  139. Yes, again: mains-powered KILLER amp without a power transformer.
  140. Quicksilver 300b monoblock (KT88 conversion)
  141. Output transformer (SE) - DIY
  142. is Gary Pimm still around?
  143. carbon composition - 2 types
  144. Input attenuation on Leak amp
  145. 101D Sockets
  146. PC86, '88 RF Amplifiers
  147. Jolida SJ-302A tube swap
  148. Inductance for tweeter OPT
  149. Help me.......What is the 6SN7 ???????
  150. high DCR secondary (power transformer)
  151. Transformer power formula Help???
  152. 2A3 OTL 800 Ohm Speaker
  153. Trying to find specs on transformer core material
  154. 12AX7 suggestions?
  155. power supply (cap input)
  156. is it safe to connect these secondaries in series?
  157. Peter Millett's Uniamp with KT88
  158. Mystery transformer
  159. Can I phase split like this?
  160. How to model psud2 using tube regulator?
  161. Choke-loaded 6C33C stage
  162. EL84 as both driver and output stage.
  163. Silvertone (Sears) stereo amp
  164. Chasing hum in a new tube amp
  165. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  166. 6bx7gt Se Amp
  167. Beard P100 Bias Lights
  168. Metasonix TS-21 modulator
  169. help with diyparadiso schematics
  170. electrostatic shield - nice to have or recommended or doesn't matter?
  171. Simple method for 240V from 240V line
  172. Audiophile bibliophilia nervosa
  173. Help with amp layout
  174. Why triode Mk3 is louder than stock Mk3
  175. Seduction or Cornet for phono???
  176. Please review my 6AQ5 Amp
  177. 832A PP Amp LTP
  178. Checklist to observe before applying the mains
  179. C3g driving 2a3: Triode or pentode?
  180. psud2 question and Fi Primer's 211 circuit
  181. Jolida JD-301A & Jadis DPL
  182. Headphones with a Tube Amp
  183. 6S3B-V Wire-Ended Single-Triode tube
  184. Anode stoppers
  185. Weird Quad II mains transformer help
  186. Mullard 5-20 parts list
  187. has anyone DIYed a Citation 2?
  188. Bogen/plexi conversion question
  189. Matched pair - different brands
  190. ERIC Mod 3460P Restore
  191. PV12 Preamplifier
  192. Grandma's old Capitol Console
  193. Music Angel
  194. What is the version of 45
  195. Heathkit potted power transformer question
  196. Thermionic Cooling?
  197. What have the finest sound, the PX4 or the 45 ?
  198. value of a cap between driver tube and output tubes
  199. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  200. Mini EL84 Amp Done
  201. Overcoming Miller
  202. Heathkit Schematic model AA-50 needed
  203. Help me choose please
  204. Mono Class A SE Schematics
  205. Irish DIY Meet.
  206. Sizing PP OPT
  207. Do SE transfomers get hot?
  208. Aikido Questions
  209. LTP with interstage trafo
  210. 6BQ5 Push-Pull amplifier
  211. Amplifier input
  212. C#@$ quality 6L6EH's
  213. Mains toroids appear to be great for audio
  214. High bias point.
  215. ebay amp
  216. GU 50 output modification
  217. 6C41Cs Class-A PP
  218. My First Big Amp
  219. sv572-10
  220. Stupid PAS-2 Pot Questions
  221. Old electronics articles
  222. UL Feedback
  223. who know fd23 and fd422 tubes?
  224. Laptop amplifier
  225. Thoughts Of Modifying My First Tube Amp.
  226. Quick question for Eli Duttman (or others!)
  227. Blackened GZ32 glass envelopes
  228. Are these vintage vacuum tubes suitable.....
  229. Tube XP8109-02?!
  230. peak current 300B heater with start up
  231. Microphonic phono preamplifier
  232. Pentode Plate Load
  233. what monoblocks to build?
  234. All tube direct box
  235. max b+ for 6V6
  236. What speakers to go with tubes ??
  237. Bluenote Koala Tube CD Player
  238. OPTs and power for bi-amping
  239. Old Diodes
  240. Father, I abused my Leak S/20
  241. 6688/E180F line stage?
  242. Variable feedback to enhance damping factor at low frequency
  243. Need assistance with picking the right Edcor audio transformer
  244. Critique my first design
  245. Biamping, phase of output?
  246. Ground star
  247. op-points for 27 pre...?
  248. Opinions/Experience of Toroidal valve amps
  249. hum, no way to get rid of it
  250. How to adjust my circuit for frequency response?

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