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  1. Orientation of EL34 Tubes
  2. Load termination ?
  3. Advice on SE DHT for Lowther Fidelio DX2
  4. Dynacord MV46 as a compressor
  5. Biggest dual triode output tube?
  6. OPT impedance question
  7. Partridge SE O/P transformers
  8. SimpleSE and me
  9. SRPP decoupling cap vs. output transformer
  10. Differences between 6SN7GTA and 6SN7GTB?
  11. Radford STA-15 questions
  12. Balanced Input Hookup
  13. Need Tube Testing Settings for 3 tubes
  14. Need helping in Grounded Grid preamp using 6H6P 6H30P
  15. Regulated Lab DC power supply
  16. Fixed Bias 6BQ5?
  17. Heathkit AG7 Audio Geneator
  18. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  19. NEWBIE question SET vs. Solid State
  20. 6N6P cascode + 6AS7 Cathode follower
  21. Help me calculator OPT for 807, 6C4C tubes.
  22. Now I have caught the bug - next project
  23. 20W cathode follower amplifier
  24. Muting line level signals
  25. Anywhere in Hong Kong...
  26. RIAA / Pre mod/upgrade
  27. IT WORKS! Tube Phono Stage
  28. 2033 info sought
  29. Pentode Zeus
  30. 5987 (sc968b)
  31. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  32. JAN Sylvania 7308 vs. JAN Sylvania 6922
  33. recording amp
  34. A Tee-Vee T00b Amp
  35. metal tube lineup for a guitar amp
  36. Locating a bad resistor
  37. MiscEI
  38. ST70 iron recommendations please
  39. need help finding a link . . .
  40. Cathodyne Phase Inverter question
  41. Using a ignition coil for a audio transformer
  42. Multiple primary windings
  43. mcintosh mc3500 clone
  44. B+ Delay
  45. My attempt: 5 element Pentode Spice model
  46. Spelling, capitalization, and grammar.
  47. Power Supply
  48. Output Autotransformers
  49. Multi Section Cap....diy?
  50. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  51. Tube rectifier to Solid state Diodes exchange
  52. Hickok 533A help
  53. Custom Cards For B&K 675 Tester
  54. Peavey Heritage VTX - Bias Question
  55. EMC Model 200 Tube Tester Any Info Pls
  56. Guitar amp PT design questions
  57. Bada PH-1 simple box mod
  58. Tubes Rectifier Help?
  59. How to make sense of LTSpice FFT analysis?
  60. Cascode with local feedback
  61. amps
  62. how to preserve copper plates?
  63. Stereo EL34 amplifier
  64. SA 3000 Counterpoint
  65. tube amp transformer identification
  66. Beginner needs advices for 807 PP project
  67. Heater Power Supply Pspice model
  68. FWCT Rectification
  69. dc or not dc
  70. OTL for dummies.
  71. TCJ Cathode-Coupled Amplifier
  72. 845 Low voltage SE AMP
  73. Vacuum Tube Computer Simulation Modeling
  74. Getting a vintage amp to work
  75. Switched DC/DCconverter for B+
  76. What can I do with this?
  77. Super Pas Two
  78. pspice model of 811A
  79. Question on what is more important B+ or Plate Voltage
  80. Can I trust SPICE?
  81. Power supply filter mod
  82. Does antone interested xxx PCB groupbuy ?
  83. 1 signal ground or two?
  84. Peavey Heritage VTX - Schematics
  85. #47......
  86. Hammond 1650F
  87. 100 watt KT88/6550 Designs
  88. What glue to use for tube glass bulb + base
  89. Tube filaments (heaters) power supply
  90. Quick Ecl86/6gw8 Amp
  91. Need help on eq. hook up for new tube system
  92. Alternatives to the Dynaco ST-70
  93. I need some eq. hook up expert advice please!
  94. Please help identify which plug I need for this socket
  95. Svetlana KT88 winged C's failings
  96. PP amp using 6p15P
  97. Time for another round of "Criticise my Circuit"... err..I mean
  98. Adding a parallel feed on DRD
  99. How hot can resistor stands?
  100. Hybrid amplifier A2 class
  101. Diodes on power supply output for voltage drop?
  102. Converting from single ended parafeed to differential
  103. micro-amp SE with 2,5k OPT+
  104. Unknown Tube Amp
  105. Aikido AC Heater Supply
  106. Help me find some odd looking rectifiers!
  107. So, you may have been wondering...(813 Content !)
  108. Just sharing my 26 experience last night...
  109. Simple 5842-45 SET Amp Design Idea
  110. Yamamoto teflon sockets
  111. new thread, 6BM8 PP build begins...
  112. KT88 Heater Current
  113. 150V plate output tubes
  114. Newbie need to help
  115. Help me please
  116. Elekit TU-870 help
  117. Looking for schematic of Audible Illusion Modulus 3A preamp
  118. Junker Box amp
  119. aikido hybrid with 5 A bias
  120. Shall we compile a list?
  121. drift in direct coupled tubes
  122. Hammond 2XX vs 3XX Power Tranny Questions
  123. Help with this transformer please...
  124. Capacitor upgrade in Paragon 12A
  125. Light bulbs as cathode resistors?
  126. Favorite Threads and Posts in "Tubes" Forum
  127. I need 12v DC- whats the best option?
  128. Beard P35 and Tubes Replacement
  129. Graphic 1/3 Octave Tube Equaliser
  130. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  131. Power Supply Design
  132. Gomes amp
  133. pignose g40v power transformer
  134. Grid battery biased SE output stages
  135. KT88 amp schematic/parts list
  136. Wire Wrap connections for point to point
  137. Aikido Tubes
  138. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  139. Schematic Question
  140. EL34 as triode?
  141. Linestage Questions
  142. Help! Building Jax's HFTA
  143. Gobs of AC on ISCO 494
  144. Change step up ratio of input transformer?
  145. LCR RIAA rebuild
  146. common mode choke question
  147. Choosing Choke
  148. Input impedance
  149. Hey Tubelab, Transformer Question
  150. Hybrid Rectifier Check Please !
  151. 1st tube project, tubalizer?
  152. 1st Time project - Report 1
  153. ED-8000 set amp
  154. Hitachi v-202 scope
  155. Cheap and nice looking SE OPT
  156. How much difference 0.22 vs 0.33 cap?
  157. Tubelab SimpleSE
  158. 813 final design?
  159. HPHV regulator, designed by Emile Sprenger
  160. Counterpoint tube amps
  161. SS or tube voltage amplifying stages in an amp with tube output?
  162. 24V Aikido --> 6GM8 with Buffer
  163. Motorboating in Dynaco ST-70
  164. Does such a tube exist?
  165. Noisy PSU?
  166. Bell & Howell amp
  167. Valve Amp with soild state front end
  168. Controlling transient response
  169. Transcendar Budget SE Transformers
  170. Opinion on New Sensor 6SN7GTB?
  171. Determining optimal OT turns ratio
  172. Splitting up the Power Amp
  173. Sowter 5113
  174. Cascoded 6N6P
  175. MachMat or Tentlabs Heater Supply for 300B
  176. Common mode filtering for heater supplies.
  177. Distortion.
  178. 83 rectifier peak repetitive current?
  179. 813 Project has begun !
  180. C3G PX25 DRD - Will it work
  181. 6J5 (Metal Tubes) ....something goes around inside
  182. common-mode chokes
  183. EL-34 and 100k pot
  184. Scott 299 (late) OPT's
  185. Tube magazines
  186. PP plate-choke?
  187. More Phase Splitting Questions
  188. Concertina sanity check
  189. Transformer Specs
  190. The Aikido or Moskido??
  191. KT88 PP suggestion
  192. Ultrapath line amp
  193. Gross loudspeaker cone movement when using tube amps.
  194. Pre-amp power iron advice??
  195. Class A 8417 Amp
  196. DHT output tubes and DC heating
  197. rock music and SE?
  198. Disadvantages of using Zobel and Series notch filter ?
  199. old days source
  200. Mu-follower vs common cathode w/- active load
  201. K40 or K42 Russian PIO: what would you use/recommend?
  202. CCS turning off prematurely?
  203. ESL amp again!
  204. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  205. Does anyone know the output transformer specs of the...
  206. SE EL84 project for my friend
  207. SE amplifier - How much power?
  208. what speakers do you use?
  209. A Tube amp for a Hostille Tube Enviornment
  210. practical choice for an amp
  211. Simple cathode CCS
  212. 2A3s in push pull; class A
  213. 5 VDC heater question
  214. Power transformer snerring.
  215. Subminiature Tube & Tripath Hybrid Integrated
  216. 211
  217. Which of these output tubes?
  218. High Voltage Heater info
  219. 6SL7 in place of a 12AX7?
  220. DHT Tubes
  221. Driving 6AQ5's
  222. schematic wanted
  223. 807s replacing 6L6GCs
  224. Shielded vs twisted pair in internal wiring
  225. tube basics: computing mu and transconductance
  226. Aluminium vs steel chassis
  227. Etf06 & 07
  228. FU 13 tubes
  229. Good Souinding Direct Replacement For 325 / OP 37
  230. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  231. The Russian 5U4M is a 5AR4 equivalent ?
  232. WE427A Cold Cathode Diode
  233. reversing polarity in regulated B+ and other question
  234. Anthem Integrated 1
  235. Hickok 800 settings
  236. Advice/Help - Cap upgrade
  237. question on old tube sockets
  238. fisher sa-16 very red tube and?
  239. pros/cons of a 845 VS 211
  240. Preamp Power and Voltage Output
  241. Anyone seen these 6L6GCs before?
  242. online transformer info for newbies
  243. High voltage pseudo-triode
  244. Yes, again: mains-powered KILLER amp without a power transformer.
  245. Quicksilver 300b monoblock (KT88 conversion)
  246. Output transformer (SE) - DIY
  247. is Gary Pimm still around?
  248. carbon composition - 2 types
  249. Input attenuation on Leak amp
  250. 101D Sockets

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