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  1. Cathodyne Phase Inverter question
  2. Using a ignition coil for a audio transformer
  3. Multiple primary windings
  4. mcintosh mc3500 clone
  5. B+ Delay
  6. My attempt: 5 element Pentode Spice model
  7. Spelling, capitalization, and grammar.
  8. Power Supply
  9. Output Autotransformers
  10. Multi Section Cap....diy?
  11. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  12. Tube rectifier to Solid state Diodes exchange
  13. Hickok 533A help
  14. Custom Cards For B&K 675 Tester
  15. Peavey Heritage VTX - Bias Question
  16. EMC Model 200 Tube Tester Any Info Pls
  17. Guitar amp PT design questions
  18. Bada PH-1 simple box mod
  19. Tubes Rectifier Help?
  20. How to make sense of LTSpice FFT analysis?
  21. Cascode with local feedback
  22. amps
  23. how to preserve copper plates?
  24. Stereo EL34 amplifier
  25. SA 3000 Counterpoint
  26. tube amp transformer identification
  27. Beginner needs advices for 807 PP project
  28. Heater Power Supply Pspice model
  29. FWCT Rectification
  30. dc or not dc
  31. OTL for dummies.
  32. TCJ Cathode-Coupled Amplifier
  33. 845 Low voltage SE AMP
  34. Vacuum Tube Computer Simulation Modeling
  35. Getting a vintage amp to work
  36. Switched DC/DCconverter for B+
  37. What can I do with this?
  38. Super Pas Two
  39. pspice model of 811A
  40. Question on what is more important B+ or Plate Voltage
  41. Can I trust SPICE?
  42. Power supply filter mod
  43. Does antone interested xxx PCB groupbuy ?
  44. 1 signal ground or two?
  45. Peavey Heritage VTX - Schematics
  46. #47......
  47. Hammond 1650F
  48. 100 watt KT88/6550 Designs
  49. What glue to use for tube glass bulb + base
  50. Tube filaments (heaters) power supply
  51. Quick Ecl86/6gw8 Amp
  52. Need help on eq. hook up for new tube system
  53. Alternatives to the Dynaco ST-70
  54. I need some eq. hook up expert advice please!
  55. Please help identify which plug I need for this socket
  56. Svetlana KT88 winged C's failings
  57. PP amp using 6p15P
  58. Time for another round of "Criticise my Circuit"... err..I mean
  59. Adding a parallel feed on DRD
  60. How hot can resistor stands?
  61. Hybrid amplifier A2 class
  62. Diodes on power supply output for voltage drop?
  63. Converting from single ended parafeed to differential
  64. micro-amp SE with 2,5k OPT+
  65. Unknown Tube Amp
  66. Aikido AC Heater Supply
  67. Help me find some odd looking rectifiers!
  68. So, you may have been wondering...(813 Content !)
  69. Just sharing my 26 experience last night...
  70. Simple 5842-45 SET Amp Design Idea
  71. Yamamoto teflon sockets
  72. new thread, 6BM8 PP build begins...
  73. KT88 Heater Current
  74. 150V plate output tubes
  75. Newbie need to help
  76. Help me please
  77. Elekit TU-870 help
  78. Looking for schematic of Audible Illusion Modulus 3A preamp
  79. Junker Box amp
  80. aikido hybrid with 5 A bias
  81. Shall we compile a list?
  82. drift in direct coupled tubes
  83. Hammond 2XX vs 3XX Power Tranny Questions
  84. Help with this transformer please...
  85. Capacitor upgrade in Paragon 12A
  86. Light bulbs as cathode resistors?
  87. Favorite Threads and Posts in "Tubes" Forum
  88. I need 12v DC- whats the best option?
  89. Beard P35 and Tubes Replacement
  90. Graphic 1/3 Octave Tube Equaliser
  91. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  92. Power Supply Design
  93. Gomes amp
  94. pignose g40v power transformer
  95. Grid battery biased SE output stages
  96. KT88 amp schematic/parts list
  97. Wire Wrap connections for point to point
  98. Aikido Tubes
  99. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  100. Schematic Question
  101. EL34 as triode?
  102. Linestage Questions
  103. Help! Building Jax's HFTA
  104. Gobs of AC on ISCO 494
  105. Change step up ratio of input transformer?
  106. LCR RIAA rebuild
  107. common mode choke question
  108. Choosing Choke
  109. Input impedance
  110. Hey Tubelab, Transformer Question
  111. Hybrid Rectifier Check Please !
  112. 1st tube project, tubalizer?
  113. 1st Time project - Report 1
  114. ED-8000 set amp
  115. Hitachi v-202 scope
  116. Cheap and nice looking SE OPT
  117. How much difference 0.22 vs 0.33 cap?
  118. Tubelab SimpleSE
  119. 813 final design?
  120. HPHV regulator, designed by Emile Sprenger
  121. Counterpoint tube amps
  122. SS or tube voltage amplifying stages in an amp with tube output?
  123. 24V Aikido --> 6GM8 with Buffer
  124. Motorboating in Dynaco ST-70
  125. Does such a tube exist?
  126. Noisy PSU?
  127. Bell & Howell amp
  128. Valve Amp with soild state front end
  129. Controlling transient response
  130. Transcendar Budget SE Transformers
  131. Opinion on New Sensor 6SN7GTB?
  132. Determining optimal OT turns ratio
  133. Splitting up the Power Amp
  134. Sowter 5113
  135. Cascoded 6N6P
  136. MachMat or Tentlabs Heater Supply for 300B
  137. Common mode filtering for heater supplies.
  138. Distortion.
  139. 83 rectifier peak repetitive current?
  140. 813 Project has begun !
  141. C3G PX25 DRD - Will it work
  142. 6J5 (Metal Tubes) ....something goes around inside
  143. common-mode chokes
  144. EL-34 and 100k pot
  145. Scott 299 (late) OPT's
  146. Tube magazines
  147. PP plate-choke?
  148. More Phase Splitting Questions
  149. Concertina sanity check
  150. Transformer Specs
  151. The Aikido or Moskido??
  152. KT88 PP suggestion
  153. Ultrapath line amp
  154. Gross loudspeaker cone movement when using tube amps.
  155. Pre-amp power iron advice??
  156. Class A 8417 Amp
  157. DHT output tubes and DC heating
  158. rock music and SE?
  159. Disadvantages of using Zobel and Series notch filter ?
  160. old days source
  161. Mu-follower vs common cathode w/- active load
  162. K40 or K42 Russian PIO: what would you use/recommend?
  163. CCS turning off prematurely?
  164. ESL amp again!
  165. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  166. Does anyone know the output transformer specs of the...
  167. SE EL84 project for my friend
  168. SE amplifier - How much power?
  169. what speakers do you use?
  170. A Tube amp for a Hostille Tube Enviornment
  171. practical choice for an amp
  172. Simple cathode CCS
  173. 2A3s in push pull; class A
  174. 5 VDC heater question
  175. Power transformer snerring.
  176. Subminiature Tube & Tripath Hybrid Integrated
  177. 211
  178. Which of these output tubes?
  179. High Voltage Heater info
  180. 6SL7 in place of a 12AX7?
  181. DHT Tubes
  182. Driving 6AQ5's
  183. schematic wanted
  184. 807s replacing 6L6GCs
  185. Shielded vs twisted pair in internal wiring
  186. tube basics: computing mu and transconductance
  187. Aluminium vs steel chassis
  188. Etf06 & 07
  189. FU 13 tubes
  190. Good Souinding Direct Replacement For 325 / OP 37
  191. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  192. The Russian 5U4M is a 5AR4 equivalent ?
  193. WE427A Cold Cathode Diode
  194. reversing polarity in regulated B+ and other question
  195. Anthem Integrated 1
  196. Hickok 800 settings
  197. Advice/Help - Cap upgrade
  198. question on old tube sockets
  199. fisher sa-16 very red tube and?
  200. pros/cons of a 845 VS 211
  201. Preamp Power and Voltage Output
  202. Anyone seen these 6L6GCs before?
  203. online transformer info for newbies
  204. High voltage pseudo-triode
  205. Yes, again: mains-powered KILLER amp without a power transformer.
  206. Quicksilver 300b monoblock (KT88 conversion)
  207. Output transformer (SE) - DIY
  208. is Gary Pimm still around?
  209. carbon composition - 2 types
  210. Input attenuation on Leak amp
  211. 101D Sockets
  212. PC86, '88 RF Amplifiers
  213. Jolida SJ-302A tube swap
  214. Inductance for tweeter OPT
  215. Help me.......What is the 6SN7 ???????
  216. high DCR secondary (power transformer)
  217. Transformer power formula Help???
  218. 2A3 OTL 800 Ohm Speaker
  219. Trying to find specs on transformer core material
  220. 12AX7 suggestions?
  221. power supply (cap input)
  222. is it safe to connect these secondaries in series?
  223. Peter Millett's Uniamp with KT88
  224. Mystery transformer
  225. Can I phase split like this?
  226. How to model psud2 using tube regulator?
  227. Choke-loaded 6C33C stage
  228. EL84 as both driver and output stage.
  229. Silvertone (Sears) stereo amp
  230. Chasing hum in a new tube amp
  231. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  232. 6bx7gt Se Amp
  233. Beard P100 Bias Lights
  234. Metasonix TS-21 modulator
  235. help with diyparadiso schematics
  236. electrostatic shield - nice to have or recommended or doesn't matter?
  237. Simple method for 240V from 240V line
  238. Audiophile bibliophilia nervosa
  239. Help with amp layout
  240. Why triode Mk3 is louder than stock Mk3
  241. Seduction or Cornet for phono???
  242. Please review my 6AQ5 Amp
  243. 832A PP Amp LTP
  244. Checklist to observe before applying the mains
  245. C3g driving 2a3: Triode or pentode?
  246. psud2 question and Fi Primer's 211 circuit
  247. Jolida JD-301A & Jadis DPL
  248. Headphones with a Tube Amp
  249. 6S3B-V Wire-Ended Single-Triode tube
  250. Anode stoppers

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