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  1. amps
  2. how to preserve copper plates?
  3. Stereo EL34 amplifier
  4. tube amp transformer identification
  5. SA 3000 Counterpoint
  6. Beginner needs advices for 807 PP project
  7. Heater Power Supply Pspice model
  8. FWCT Rectification
  9. dc or not dc
  10. OTL for dummies.
  11. TCJ Cathode-Coupled Amplifier
  12. 845 Low voltage SE AMP
  13. Getting a vintage amp to work
  14. Switched DC/DCconverter for B+
  15. What can I do with this?
  16. Super Pas Two
  17. pspice model of 811A
  18. Question on what is more important B+ or Plate Voltage
  19. Can I trust SPICE?
  20. Power supply filter mod
  21. Does antone interested xxx PCB groupbuy ?
  22. 1 signal ground or two?
  23. #47......
  24. Hammond 1650F
  25. 100 watt KT88/6550 Designs
  26. What glue to use for tube glass bulb + base
  27. Tube filaments (heaters) power supply
  28. Quick Ecl86/6gw8 Amp
  29. Need help on eq. hook up for new tube system
  30. Alternatives to the Dynaco ST-70
  31. I need some eq. hook up expert advice please!
  32. Please help identify which plug I need for this socket
  33. Svetlana KT88 winged C's failings
  34. PP amp using 6p15P
  35. Time for another round of "Criticise my Circuit"... err..I mean
  36. Adding a parallel feed on DRD
  37. Hybrid amplifier A2 class
  38. Diodes on power supply output for voltage drop?
  39. Converting from single ended parafeed to differential
  40. micro-amp SE with 2,5k OPT+
  41. Unknown Tube Amp
  42. Aikido AC Heater Supply
  43. Help me find some odd looking rectifiers!
  44. So, you may have been wondering...(813 Content !)
  45. Just sharing my 26 experience last night...
  46. Simple 5842-45 SET Amp Design Idea
  47. Yamamoto teflon sockets
  48. new thread, 6BM8 PP build begins...
  49. KT88 Heater Current
  50. 150V plate output tubes
  51. Newbie need to help
  52. Help me please
  53. Elekit TU-870 help
  54. Looking for schematic of Audible Illusion Modulus 3A preamp
  55. Junker Box amp
  56. aikido hybrid with 5 A bias
  57. Shall we compile a list?
  58. drift in direct coupled tubes
  59. Hammond 2XX vs 3XX Power Tranny Questions
  60. Help with this transformer please...
  61. Capacitor upgrade in Paragon 12A
  62. Light bulbs as cathode resistors?
  63. Favorite Threads and Posts in "Tubes" Forum
  64. I need 12v DC- whats the best option?
  65. Beard P35 and Tubes Replacement
  66. Graphic 1/3 Octave Tube Equaliser
  67. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  68. Power Supply Design
  69. Gomes amp
  70. pignose g40v power transformer
  71. Grid battery biased SE output stages
  72. KT88 amp schematic/parts list
  73. Wire Wrap connections for point to point
  74. Aikido Tubes
  75. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  76. Schematic Question
  77. EL34 as triode?
  78. Linestage Questions
  79. Help! Building Jax's HFTA
  80. Gobs of AC on ISCO 494
  81. Change step up ratio of input transformer?
  82. LCR RIAA rebuild
  83. common mode choke question
  84. Choosing Choke
  85. Input impedance
  86. Hybrid Rectifier Check Please !
  87. 1st tube project, tubalizer?
  88. 1st Time project - Report 1
  89. ED-8000 set amp
  90. Hitachi v-202 scope
  91. Cheap and nice looking SE OPT
  92. How much difference 0.22 vs 0.33 cap?
  93. 813 final design?
  94. Counterpoint tube amps
  95. HPHV regulator, designed by Emile Sprenger
  96. SS or tube voltage amplifying stages in an amp with tube output?
  97. 24V Aikido --> 6GM8 with Buffer
  98. Motorboating in Dynaco ST-70
  99. Does such a tube exist?
  100. Noisy PSU?
  101. Bell & Howell amp
  102. Valve Amp with soild state front end
  103. Controlling transient response
  104. Transcendar Budget SE Transformers
  105. Opinion on New Sensor 6SN7GTB?
  106. Determining optimal OT turns ratio
  107. Splitting up the Power Amp
  108. Sowter 5113
  109. Cascoded 6N6P
  110. MachMat or Tentlabs Heater Supply for 300B
  111. Common mode filtering for heater supplies.
  112. Distortion.
  113. 83 rectifier peak repetitive current?
  114. 813 Project has begun !
  115. C3G PX25 DRD - Will it work
  116. 6J5 (Metal Tubes) ....something goes around inside
  117. common-mode chokes
  118. EL-34 and 100k pot
  119. Scott 299 (late) OPT's
  120. Tube magazines
  121. PP plate-choke?
  122. More Phase Splitting Questions
  123. Concertina sanity check
  124. Transformer Specs
  125. The Aikido or Moskido??
  126. KT88 PP suggestion
  127. Ultrapath line amp
  128. Gross loudspeaker cone movement when using tube amps.
  129. Pre-amp power iron advice??
  130. Class A 8417 Amp
  131. DHT output tubes and DC heating
  132. rock music and SE?
  133. Disadvantages of using Zobel and Series notch filter ?
  134. old days source
  135. Mu-follower vs common cathode w/- active load
  136. K40 or K42 Russian PIO: what would you use/recommend?
  137. CCS turning off prematurely?
  138. ESL amp again!
  139. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  140. Does anyone know the output transformer specs of the...
  141. SE EL84 project for my friend
  142. SE amplifier - How much power?
  143. what speakers do you use?
  144. A Tube amp for a Hostille Tube Enviornment
  145. practical choice for an amp
  146. Simple cathode CCS
  147. 2A3s in push pull; class A
  148. 5 VDC heater question
  149. Power transformer snerring.
  150. Subminiature Tube & Tripath Hybrid Integrated
  151. 211
  152. Which of these output tubes?
  153. High Voltage Heater info
  154. 6SL7 in place of a 12AX7?
  155. DHT Tubes
  156. Driving 6AQ5's
  157. schematic wanted
  158. 807s replacing 6L6GCs
  159. Shielded vs twisted pair in internal wiring
  160. tube basics: computing mu and transconductance
  161. Aluminium vs steel chassis
  162. Etf06 & 07
  163. FU 13 tubes
  164. Good Souinding Direct Replacement For 325 / OP 37
  165. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  166. The Russian 5U4M is a 5AR4 equivalent ?
  167. WE427A Cold Cathode Diode
  168. reversing polarity in regulated B+ and other question
  169. Anthem Integrated 1
  170. Advice/Help - Cap upgrade
  171. question on old tube sockets
  172. fisher sa-16 very red tube and?
  173. pros/cons of a 845 VS 211
  174. Preamp Power and Voltage Output
  175. Anyone seen these 6L6GCs before?
  176. online transformer info for newbies
  177. High voltage pseudo-triode
  178. Yes, again: mains-powered KILLER amp without a power transformer.
  179. Quicksilver 300b monoblock (KT88 conversion)
  180. Output transformer (SE) - DIY
  181. is Gary Pimm still around?
  182. carbon composition - 2 types
  183. Input attenuation on Leak amp
  184. 101D Sockets
  185. PC86, '88 RF Amplifiers
  186. Jolida SJ-302A tube swap
  187. Inductance for tweeter OPT
  188. Help me.......What is the 6SN7 ???????
  189. high DCR secondary (power transformer)
  190. Transformer power formula Help???
  191. 2A3 OTL 800 Ohm Speaker
  192. Trying to find specs on transformer core material
  193. 12AX7 suggestions?
  194. power supply (cap input)
  195. is it safe to connect these secondaries in series?
  196. Peter Millett's Uniamp with KT88
  197. Mystery transformer
  198. Can I phase split like this?
  199. How to model psud2 using tube regulator?
  200. Choke-loaded 6C33C stage
  201. EL84 as both driver and output stage.
  202. Silvertone (Sears) stereo amp
  203. Chasing hum in a new tube amp
  204. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  205. 6bx7gt Se Amp
  206. Beard P100 Bias Lights
  207. Metasonix TS-21 modulator
  208. help with diyparadiso schematics
  209. electrostatic shield - nice to have or recommended or doesn't matter?
  210. Simple method for 240V from 240V line
  211. Audiophile bibliophilia nervosa
  212. Help with amp layout
  213. Why triode Mk3 is louder than stock Mk3
  214. Seduction or Cornet for phono???
  215. Please review my 6AQ5 Amp
  216. 832A PP Amp LTP
  217. Checklist to observe before applying the mains
  218. C3g driving 2a3: Triode or pentode?
  219. psud2 question and Fi Primer's 211 circuit
  220. Jolida JD-301A & Jadis DPL
  221. Headphones with a Tube Amp
  222. 6S3B-V Wire-Ended Single-Triode tube
  223. Anode stoppers
  224. Weird Quad II mains transformer help
  225. Mullard 5-20 parts list
  226. has anyone DIYed a Citation 2?
  227. Bogen/plexi conversion question
  228. Matched pair - different brands
  229. ERIC Mod 3460P Restore
  230. PV12 Preamplifier
  231. Grandma's old Capitol Console
  232. Music Angel
  233. What is the version of 45
  234. Heathkit potted power transformer question
  235. Thermionic Cooling?
  236. What have the finest sound, the PX4 or the 45 ?
  237. value of a cap between driver tube and output tubes
  238. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  239. Mini EL84 Amp Done
  240. Overcoming Miller
  241. Heathkit Schematic model AA-50 needed
  242. Help me choose please
  243. Mono Class A SE Schematics
  244. Irish DIY Meet.
  245. Sizing PP OPT
  246. Do SE transfomers get hot?
  247. Aikido Questions
  248. LTP with interstage trafo
  249. 6BQ5 Push-Pull amplifier
  250. Amplifier input

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