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  1. Gomes amp
  2. pignose g40v power transformer
  3. Grid battery biased SE output stages
  4. KT88 amp schematic/parts list
  5. Wire Wrap connections for point to point
  6. Aikido Tubes
  7. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  8. Schematic Question
  9. EL34 as triode?
  10. Linestage Questions
  11. Help! Building Jax's HFTA
  12. Gobs of AC on ISCO 494
  13. Change step up ratio of input transformer?
  14. LCR RIAA rebuild
  15. common mode choke question
  16. Choosing Choke
  17. Input impedance
  18. Hybrid Rectifier Check Please !
  19. 1st tube project, tubalizer?
  20. 1st Time project - Report 1
  21. ED-8000 set amp
  22. Hitachi v-202 scope
  23. Cheap and nice looking SE OPT
  24. How much difference 0.22 vs 0.33 cap?
  25. 813 final design?
  26. Counterpoint tube amps
  27. HPHV regulator, designed by Emile Sprenger
  28. SS or tube voltage amplifying stages in an amp with tube output?
  29. 24V Aikido --> 6GM8 with Buffer
  30. Motorboating in Dynaco ST-70
  31. Does such a tube exist?
  32. Noisy PSU?
  33. Bell & Howell amp
  34. Valve Amp with soild state front end
  35. Controlling transient response
  36. Transcendar Budget SE Transformers
  37. Opinion on New Sensor 6SN7GTB?
  38. Determining optimal OT turns ratio
  39. Splitting up the Power Amp
  40. Sowter 5113
  41. Cascoded 6N6P
  42. MachMat or Tentlabs Heater Supply for 300B
  43. Common mode filtering for heater supplies.
  44. Distortion.
  45. 83 rectifier peak repetitive current?
  46. 813 Project has begun !
  47. C3G PX25 DRD - Will it work
  48. 6J5 (Metal Tubes) ....something goes around inside
  49. common-mode chokes
  50. EL-34 and 100k pot
  51. Scott 299 (late) OPT's
  52. Tube magazines
  53. PP plate-choke?
  54. More Phase Splitting Questions
  55. Concertina sanity check
  56. Transformer Specs
  57. The Aikido or Moskido??
  58. KT88 PP suggestion
  59. Ultrapath line amp
  60. Gross loudspeaker cone movement when using tube amps.
  61. Pre-amp power iron advice??
  62. Class A 8417 Amp
  63. DHT output tubes and DC heating
  64. rock music and SE?
  65. Disadvantages of using Zobel and Series notch filter ?
  66. old days source
  67. Mu-follower vs common cathode w/- active load
  68. K40 or K42 Russian PIO: what would you use/recommend?
  69. CCS turning off prematurely?
  70. ESL amp again!
  71. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  72. Does anyone know the output transformer specs of the...
  73. SE EL84 project for my friend
  74. SE amplifier - How much power?
  75. what speakers do you use?
  76. A Tube amp for a Hostille Tube Enviornment
  77. practical choice for an amp
  78. Simple cathode CCS
  79. 2A3s in push pull; class A
  80. 5 VDC heater question
  81. Power transformer snerring.
  82. Subminiature Tube & Tripath Hybrid Integrated
  83. 211
  84. Which of these output tubes?
  85. High Voltage Heater info
  86. 6SL7 in place of a 12AX7?
  87. DHT Tubes
  88. Driving 6AQ5's
  89. schematic wanted
  90. 807s replacing 6L6GCs
  91. Shielded vs twisted pair in internal wiring
  92. tube basics: computing mu and transconductance
  93. Aluminium vs steel chassis
  94. Etf06 & 07
  95. FU 13 tubes
  96. Good Souinding Direct Replacement For 325 / OP 37
  97. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  98. The Russian 5U4M is a 5AR4 equivalent ?
  99. WE427A Cold Cathode Diode
  100. reversing polarity in regulated B+ and other question
  101. Anthem Integrated 1
  102. Advice/Help - Cap upgrade
  103. question on old tube sockets
  104. fisher sa-16 very red tube and?
  105. pros/cons of a 845 VS 211
  106. Preamp Power and Voltage Output
  107. Anyone seen these 6L6GCs before?
  108. online transformer info for newbies
  109. High voltage pseudo-triode
  110. Yes, again: mains-powered KILLER amp without a power transformer.
  111. Quicksilver 300b monoblock (KT88 conversion)
  112. Output transformer (SE) - DIY
  113. is Gary Pimm still around?
  114. carbon composition - 2 types
  115. Input attenuation on Leak amp
  116. 101D Sockets
  117. PC86, '88 RF Amplifiers
  118. Jolida SJ-302A tube swap
  119. Inductance for tweeter OPT
  120. Help me.......What is the 6SN7 ???????
  121. high DCR secondary (power transformer)
  122. Transformer power formula Help???
  123. 2A3 OTL 800 Ohm Speaker
  124. Trying to find specs on transformer core material
  125. 12AX7 suggestions?
  126. power supply (cap input)
  127. is it safe to connect these secondaries in series?
  128. Peter Millett's Uniamp with KT88
  129. Mystery transformer
  130. Can I phase split like this?
  131. How to model psud2 using tube regulator?
  132. Choke-loaded 6C33C stage
  133. EL84 as both driver and output stage.
  134. Silvertone (Sears) stereo amp
  135. Chasing hum in a new tube amp
  136. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  137. 6bx7gt Se Amp
  138. Beard P100 Bias Lights
  139. Metasonix TS-21 modulator
  140. help with diyparadiso schematics
  141. electrostatic shield - nice to have or recommended or doesn't matter?
  142. Simple method for 240V from 240V line
  143. Audiophile bibliophilia nervosa
  144. Help with amp layout
  145. Why triode Mk3 is louder than stock Mk3
  146. Seduction or Cornet for phono???
  147. Please review my 6AQ5 Amp
  148. 832A PP Amp LTP
  149. Checklist to observe before applying the mains
  150. C3g driving 2a3: Triode or pentode?
  151. psud2 question and Fi Primer's 211 circuit
  152. Jolida JD-301A & Jadis DPL
  153. Headphones with a Tube Amp
  154. 6S3B-V Wire-Ended Single-Triode tube
  155. Anode stoppers
  156. Weird Quad II mains transformer help
  157. Mullard 5-20 parts list
  158. has anyone DIYed a Citation 2?
  159. Bogen/plexi conversion question
  160. Matched pair - different brands
  161. ERIC Mod 3460P Restore
  162. PV12 Preamplifier
  163. Grandma's old Capitol Console
  164. Music Angel
  165. What is the version of 45
  166. Heathkit potted power transformer question
  167. Thermionic Cooling?
  168. What have the finest sound, the PX4 or the 45 ?
  169. value of a cap between driver tube and output tubes
  170. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  171. Mini EL84 Amp Done
  172. Overcoming Miller
  173. Heathkit Schematic model AA-50 needed
  174. Help me choose please
  175. Mono Class A SE Schematics
  176. Irish DIY Meet.
  177. Sizing PP OPT
  178. Do SE transfomers get hot?
  179. Aikido Questions
  180. LTP with interstage trafo
  181. 6BQ5 Push-Pull amplifier
  182. Amplifier input
  183. C#@$ quality 6L6EH's
  184. Mains toroids appear to be great for audio
  185. High bias point.
  186. ebay amp
  187. GU 50 output modification
  188. 6C41Cs Class-A PP
  189. My First Big Amp
  190. sv572-10
  191. Stupid PAS-2 Pot Questions
  192. Old electronics articles
  193. UL Feedback
  194. who know fd23 and fd422 tubes?
  195. Laptop amplifier
  196. Thoughts Of Modifying My First Tube Amp.
  197. Quick question for Eli Duttman (or others!)
  198. Blackened GZ32 glass envelopes
  199. Are these vintage vacuum tubes suitable.....
  200. Tube XP8109-02?!
  201. peak current 300B heater with start up
  202. Microphonic phono preamplifier
  203. Pentode Plate Load
  204. what monoblocks to build?
  205. All tube direct box
  206. max b+ for 6V6
  207. What speakers to go with tubes ??
  208. Bluenote Koala Tube CD Player
  209. OPTs and power for bi-amping
  210. Old Diodes
  211. Father, I abused my Leak S/20
  212. 6688/E180F line stage?
  213. Variable feedback to enhance damping factor at low frequency
  214. Need assistance with picking the right Edcor audio transformer
  215. Critique my first design
  216. Biamping, phase of output?
  217. Ground star
  218. op-points for 27 pre...?
  219. Opinions/Experience of Toroidal valve amps
  220. hum, no way to get rid of it
  221. How to adjust my circuit for frequency response?
  222. Input Tubes?
  223. 6BG6 = 6L6GC with top cap - cheap!
  224. Maida Regulators Redux
  225. ground of DC bias supply
  226. does anyone the website for yaqin/mr. liung/music angel amps?
  227. plate load ccs ala gary p question
  228. Books for newbe
  229. 6AS7 OTL
  230. n00b phono preamp troubleshooting..
  231. any example of SE designs using GM70?
  232. Shunt regulator question
  233. Any RH807 builders?
  234. Recycle an Eico HFT-90 for a preamp
  235. EL84 PP output transformer for 6L6 PP class A
  236. toroid psu, weird results...
  237. Squeaky Noise in ARC Dual 75
  238. EL84 mod questions
  239. Measuring DC at preamp output
  240. Is Northern Electric the NEW W.E.?
  241. Burnt Woodside STA35 valve amp... Help!
  242. My tube preamplifier project
  243. Ponderings on hybrid 300B
  244. Maida Regulator Parts
  245. anyone familiar with the 211/vt4c circuit from Fi Primer?
  246. Calculating operating points of two DC stages
  247. Advice for retubing VTL Ichiban`s
  248. Need help
  249. Art Audio Kit on Common Ground Magazine
  250. Advice for retubing VTL Ichiban`s

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