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  1. Need helping in Grounded Grid preamp using 6H6P 6H30P
  2. Regulated Lab DC power supply
  3. Fixed Bias 6BQ5?
  4. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  5. NEWBIE question SET vs. Solid State
  6. 6N6P cascode + 6AS7 Cathode follower
  7. Help me calculator OPT for 807, 6C4C tubes.
  8. Now I have caught the bug - next project
  9. 20W cathode follower amplifier
  10. Muting line level signals
  11. Anywhere in Hong Kong...
  12. RIAA / Pre mod/upgrade
  13. IT WORKS! Tube Phono Stage
  14. 2033 info sought
  15. Pentode Zeus
  16. 5987 (sc968b)
  17. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  18. JAN Sylvania 7308 vs. JAN Sylvania 6922
  19. recording amp
  20. A Tee-Vee T00b Amp
  21. Locating a bad resistor
  22. MiscEI
  23. ST70 iron recommendations please
  24. need help finding a link . . .
  25. Cathodyne Phase Inverter question
  26. Using a ignition coil for a audio transformer
  27. Multiple primary windings
  28. mcintosh mc3500 clone
  29. B+ Delay
  30. My attempt: 5 element Pentode Spice model
  31. Spelling, capitalization, and grammar.
  32. Power Supply
  33. Output Autotransformers
  34. Multi Section Cap....diy?
  35. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  36. Tube rectifier to Solid state Diodes exchange
  37. Custom Cards For B&K 675 Tester
  38. Bada PH-1 simple box mod
  39. Tubes Rectifier Help?
  40. Cascode with local feedback
  41. amps
  42. how to preserve copper plates?
  43. Stereo EL34 amplifier
  44. tube amp transformer identification
  45. SA 3000 Counterpoint
  46. Beginner needs advices for 807 PP project
  47. Heater Power Supply Pspice model
  48. FWCT Rectification
  49. dc or not dc
  50. OTL for dummies.
  51. TCJ Cathode-Coupled Amplifier
  52. 845 Low voltage SE AMP
  53. Getting a vintage amp to work
  54. Switched DC/DCconverter for B+
  55. What can I do with this?
  56. Super Pas Two
  57. pspice model of 811A
  58. Question on what is more important B+ or Plate Voltage
  59. Can I trust SPICE?
  60. Power supply filter mod
  61. Does antone interested xxx PCB groupbuy ?
  62. 1 signal ground or two?
  63. #47......
  64. Hammond 1650F
  65. 100 watt KT88/6550 Designs
  66. What glue to use for tube glass bulb + base
  67. Tube filaments (heaters) power supply
  68. Quick Ecl86/6gw8 Amp
  69. Need help on eq. hook up for new tube system
  70. Alternatives to the Dynaco ST-70
  71. I need some eq. hook up expert advice please!
  72. Please help identify which plug I need for this socket
  73. Svetlana KT88 winged C's failings
  74. PP amp using 6p15P
  75. Time for another round of "Criticise my Circuit"... err..I mean
  76. Adding a parallel feed on DRD
  77. Hybrid amplifier A2 class
  78. Diodes on power supply output for voltage drop?
  79. Converting from single ended parafeed to differential
  80. micro-amp SE with 2,5k OPT+
  81. Unknown Tube Amp
  82. Aikido AC Heater Supply
  83. Help me find some odd looking rectifiers!
  84. So, you may have been wondering...(813 Content !)
  85. Just sharing my 26 experience last night...
  86. Simple 5842-45 SET Amp Design Idea
  87. Yamamoto teflon sockets
  88. new thread, 6BM8 PP build begins...
  89. KT88 Heater Current
  90. 150V plate output tubes
  91. Newbie need to help
  92. Help me please
  93. Elekit TU-870 help
  94. Looking for schematic of Audible Illusion Modulus 3A preamp
  95. Junker Box amp
  96. aikido hybrid with 5 A bias
  97. Shall we compile a list?
  98. drift in direct coupled tubes
  99. Hammond 2XX vs 3XX Power Tranny Questions
  100. Help with this transformer please...
  101. Capacitor upgrade in Paragon 12A
  102. Light bulbs as cathode resistors?
  103. Favorite Threads and Posts in "Tubes" Forum
  104. I need 12v DC- whats the best option?
  105. Beard P35 and Tubes Replacement
  106. Graphic 1/3 Octave Tube Equaliser
  107. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  108. Power Supply Design
  109. Gomes amp
  110. pignose g40v power transformer
  111. Grid battery biased SE output stages
  112. KT88 amp schematic/parts list
  113. Wire Wrap connections for point to point
  114. Aikido Tubes
  115. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  116. Schematic Question
  117. EL34 as triode?
  118. Linestage Questions
  119. Help! Building Jax's HFTA
  120. Gobs of AC on ISCO 494
  121. Change step up ratio of input transformer?
  122. LCR RIAA rebuild
  123. common mode choke question
  124. Choosing Choke
  125. Input impedance
  126. Hybrid Rectifier Check Please !
  127. 1st tube project, tubalizer?
  128. 1st Time project - Report 1
  129. ED-8000 set amp
  130. Hitachi v-202 scope
  131. Cheap and nice looking SE OPT
  132. How much difference 0.22 vs 0.33 cap?
  133. 813 final design?
  134. Counterpoint tube amps
  135. HPHV regulator, designed by Emile Sprenger
  136. SS or tube voltage amplifying stages in an amp with tube output?
  137. 24V Aikido --> 6GM8 with Buffer
  138. Motorboating in Dynaco ST-70
  139. Does such a tube exist?
  140. Noisy PSU?
  141. Bell & Howell amp
  142. Valve Amp with soild state front end
  143. Controlling transient response
  144. Transcendar Budget SE Transformers
  145. Opinion on New Sensor 6SN7GTB?
  146. Determining optimal OT turns ratio
  147. Splitting up the Power Amp
  148. Sowter 5113
  149. Cascoded 6N6P
  150. MachMat or Tentlabs Heater Supply for 300B
  151. Common mode filtering for heater supplies.
  152. Distortion.
  153. 83 rectifier peak repetitive current?
  154. 813 Project has begun !
  155. C3G PX25 DRD - Will it work
  156. 6J5 (Metal Tubes) ....something goes around inside
  157. common-mode chokes
  158. EL-34 and 100k pot
  159. Scott 299 (late) OPT's
  160. Tube magazines
  161. PP plate-choke?
  162. More Phase Splitting Questions
  163. Concertina sanity check
  164. Transformer Specs
  165. The Aikido or Moskido??
  166. KT88 PP suggestion
  167. Ultrapath line amp
  168. Gross loudspeaker cone movement when using tube amps.
  169. Pre-amp power iron advice??
  170. Class A 8417 Amp
  171. DHT output tubes and DC heating
  172. rock music and SE?
  173. Disadvantages of using Zobel and Series notch filter ?
  174. old days source
  175. Mu-follower vs common cathode w/- active load
  176. K40 or K42 Russian PIO: what would you use/recommend?
  177. CCS turning off prematurely?
  178. ESL amp again!
  179. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  180. Does anyone know the output transformer specs of the...
  181. SE EL84 project for my friend
  182. SE amplifier - How much power?
  183. what speakers do you use?
  184. A Tube amp for a Hostille Tube Enviornment
  185. practical choice for an amp
  186. Simple cathode CCS
  187. 2A3s in push pull; class A
  188. 5 VDC heater question
  189. Power transformer snerring.
  190. Subminiature Tube & Tripath Hybrid Integrated
  191. 211
  192. Which of these output tubes?
  193. High Voltage Heater info
  194. 6SL7 in place of a 12AX7?
  195. DHT Tubes
  196. Driving 6AQ5's
  197. schematic wanted
  198. 807s replacing 6L6GCs
  199. Shielded vs twisted pair in internal wiring
  200. tube basics: computing mu and transconductance
  201. Aluminium vs steel chassis
  202. Etf06 & 07
  203. FU 13 tubes
  204. Good Souinding Direct Replacement For 325 / OP 37
  205. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  206. The Russian 5U4M is a 5AR4 equivalent ?
  207. WE427A Cold Cathode Diode
  208. reversing polarity in regulated B+ and other question
  209. Anthem Integrated 1
  210. Advice/Help - Cap upgrade
  211. question on old tube sockets
  212. fisher sa-16 very red tube and?
  213. pros/cons of a 845 VS 211
  214. Preamp Power and Voltage Output
  215. Anyone seen these 6L6GCs before?
  216. online transformer info for newbies
  217. High voltage pseudo-triode
  218. Yes, again: mains-powered KILLER amp without a power transformer.
  219. Quicksilver 300b monoblock (KT88 conversion)
  220. Output transformer (SE) - DIY
  221. is Gary Pimm still around?
  222. carbon composition - 2 types
  223. Input attenuation on Leak amp
  224. 101D Sockets
  225. PC86, '88 RF Amplifiers
  226. Jolida SJ-302A tube swap
  227. Inductance for tweeter OPT
  228. Help me.......What is the 6SN7 ???????
  229. high DCR secondary (power transformer)
  230. Transformer power formula Help???
  231. 2A3 OTL 800 Ohm Speaker
  232. Trying to find specs on transformer core material
  233. 12AX7 suggestions?
  234. power supply (cap input)
  235. is it safe to connect these secondaries in series?
  236. Peter Millett's Uniamp with KT88
  237. Mystery transformer
  238. Can I phase split like this?
  239. How to model psud2 using tube regulator?
  240. Choke-loaded 6C33C stage
  241. EL84 as both driver and output stage.
  242. Silvertone (Sears) stereo amp
  243. Chasing hum in a new tube amp
  244. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  245. 6bx7gt Se Amp
  246. Beard P100 Bias Lights
  247. Metasonix TS-21 modulator
  248. help with diyparadiso schematics
  249. electrostatic shield - nice to have or recommended or doesn't matter?
  250. Simple method for 240V from 240V line

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