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  1. Mullards branded as Telefunkens???
  2. Pentodes; plate resistance; damping...
  3. PP amp has become SE?
  4. anyone mod a NYAL Moscode superIt?
  5. update to phillips sepp otl?
  6. DC filament supply LC or CL
  7. No Bass Control
  8. Unison Research Simply2 or s2schematics
  9. Border Patrol Power Supply
  10. Any leads on repairing a vintage Alamo Capri tube amp? >>
  11. nanocrystalline amorphous OPT
  12. El84 Pp
  13. Preamp, Euridice?
  14. Has anyone built a PS like this?
  15. Tube sockets in Eagle?
  16. E235L tubes
  17. Grid Input Transformers
  18. Aikido Power Supply
  19. ralph power pp amp with 807 ?
  20. fender clone, 6SJ7 vs. 6SN7
  21. tube stores in moscow
  22. 211 and 845
  23. Need help with amp
  24. Altec 1570B
  25. UL to triode
  26. How can I improve this tube amp (see pics)?
  27. klimo merlin preamp sch wanted
  28. CCS question
  29. *****es brew step 2 ... or grid bias ... how to?
  30. Filaments for the Aikido
  31. RE: RC-19 or RC-30
  32. My experience building a DRD d3A/300B amp
  33. TIP50 + LM317 High Voltage Regulator
  34. Any info on old "Cosmos" amp'?
  35. What more do I need to know?
  36. EBAY Find Of The Year Club LOL
  37. Partial feedback DHP SE amp
  38. newbie question
  39. Tube 1616
  40. Class A tube integrated circuit request
  41. Global Feedback Source Point
  42. These look interesting for that SE project
  43. Phillips AG9008 amp - looking for diagram
  44. 3cx3000
  45. EL86 and speakers? 800 Ohm
  46. Looking for CAT SL-1 Schematic
  47. el84 - 807 ?
  48. Low-voltage Tubebuffer by David Lin
  49. changing diodes with 5AR4 tubes
  50. 801 amp PS
  51. what can I do with these tubes?
  52. How to 'fine tune' your amps?
  53. Otl
  54. Rogers E40a schematic?
  55. Peavey Triple X Rewire! Help!
  56. Butler Monad A 100
  57. Using the UTC LS-33 as a Push-Pull output for 2A3's
  58. 2A3 AC filament hum
  59. A question about diodes...
  60. 5R4WGY/A/B , input filter capacitors
  61. attenuator hook up?
  62. best material for mounting tubes sideways
  63. Amp suggestions needed
  64. CC vs EI I mean toroids are out of question
  65. Newbie need help in designing tube preamp for my 3886 GC??Please Help me!!
  66. Inviting Comment on Schematic
  67. SE 2A3 input stage
  68. DIY Tube Amp Questions
  69. Need tube buffer circuit for sub-woofer out
  70. How to connect electrostatic shield of power transformer?
  71. Your favourite filament supply for DHT's?
  72. Quantum Impex
  73. Channel Switching Real McTube?
  74. so who owns a dac5 or m8 phono
  75. OPT at frequency extremes
  76. Parafeed with resistive load
  77. EL34 SE triode mode A class sch wanted
  78. Dumont (where theres smoke theres sound)
  79. HYBRID- Schematic
  80. I have a pair of JBL control 5 speakers, which valve amp design you recommend?
  81. sovtek 300B
  82. 12au6 preamp
  83. Engineering Drawings PCB Mount Tube Sockets
  84. Help with a choke for first-time DIY...
  85. Power SRPP
  86. Anode Loading Vs. Cathode Loading ?
  87. Purist 2 Line Amp
  88. Yet Another "EURIDICE" Pre Amp, 4CH This Time
  89. radio receiver
  90. Help Vintage Guitar Hummer
  91. Pioneer SM83 and 500k pot
  92. How many ways to connect a pentode...
  93. How do I go about repairing a vintage Pilotone AA-410A monoblock tube amp?
  94. Any pitfalls to tapping voltage doubler?
  95. 5k to 100 or so line transformers
  96. Ongaku 211 and Supravox 215
  97. Help with 6B4G PP amp.
  98. Help me build my Choke I/P preamp PSU
  99. Pinging "DoomPixie"
  100. 6L6 mono amp questions
  101. Help on 300B power trans...
  102. Spud Farmin' Pt. Deux
  103. No Zen
  104. Reuse or rewind choke
  105. Bell Sound Mono Integrated Amplifier
  106. Help with Melos SHA repair
  107. diy guitar tube amp help.
  108. Phase splitter transformers
  109. 6v6 schems
  110. Cathode feedback
  111. Is this a good choice for El34 PP
  112. 6DK6 amp schematics?
  113. so who here builds amps
  114. 3:1 Line Input X-former ?
  115. * 35 watt * 300B SE = super 300B + Class A2
  116. Quirk in Mullard 5-20 circuit
  117. LL1673 as anode load?
  118. preamp/power amp matching
  119. 0A3 and pentode questions (quickie)
  120. where to find transformer to use
  121. C core output design
  122. Unusual Motorola Console
  123. Improving the Aikido line stage...
  124. Poll..anyone interested in an Aikido linestage PCB group buy?
  125. New 6s45p compare to NOS?
  126. Elektra Print L-3500
  127. 300b tube cage
  128. The 'Tater Patch
  129. 2A3 Sovtek characteristics
  130. 300b filament q, yes another one.
  131. Amp repair help needed.
  132. 833a SE Peak A.F. Grid Voltage
  133. DHP driver for 845
  134. Fisher 55-a
  135. Ultralinear Miller capacitance
  136. Simplest OTL?
  137. presence control
  138. Black Gate N cathode formation voltage
  139. Any other reported fragility for 6H30pi?
  140. Help! circuit diagram
  141. Another Gm70 amp !!
  142. 833a Amp 75W SE
  143. Black Gate N-series question
  144. 300B+
  145. Koren's spice models
  146. 50 Power triode
  147. Vertical deflection tubes for audio output?
  148. warmth in different tube types
  149. OT data
  150. Sansui 1000A OPT's
  151. CF biasing and load ???s
  152. improving the Mcintosh C22
  153. An amp that melts 6L6s?
  154. 8ohm speaker on 15 or 3.5 ohm tranny
  155. Choosing a brand as a standard
  156. The power of transformation
  157. wanted- 845 pwr amp p.p.
  158. Heathkit S-33 Information needed.
  159. Leak Stereo 20 - solid state rectifier?
  160. My rebuild 6sn7gt tubes line pre-amp.
  161. CircuitMaker Vacuum Tube model
  162. Mf X-pre
  163. E182CC, E88CC SRPP at low voltage
  164. Debugging my Aikido
  165. SRPP linestage help
  166. Transformer question
  167. Tube Spice Model Problem
  168. Just found a zenith 7g01z in the basement
  169. your next level story - Philosophy of EE 101
  170. JLTI Tube Preamp
  171. squeal in amplifier
  172. ALTEC Line & Bridging Transformer Data??
  173. Tube noob needs some help on PSU
  174. Preamp PSU Design Help
  175. GZ37 Substitution?
  176. help disigning 12AY7 based mic pre
  177. I m confuse ! expert help
  178. Removing a pot.
  179. diyparadiso kits?
  180. Help with linestage power supply
  181. TX103 - RJM 6DJ8 - TX102 preamp
  182. Replace the field coil spk with Electromagnetic dynamic spk
  183. Gu50 output problems
  184. SRPP: adifferent perspective
  185. Fixed or self bias?
  186. 211 amp PSU question
  187. Help! transformer overheating!
  188. more ebay stuff
  189. 6KG6, output stage & PSpice
  190. 6C33C-B Failure Mode?
  191. manley 300b preamp schematic required
  192. 115 V transformer on 230 V ???
  193. Hoffman Amps Turret Lugs?
  194. 300B Reliablity
  195. Metal work in Toronto
  196. What happens when you starve a heater?
  197. se 6c33c or se el34 schematic
  198. AVO MkIV User Guide
  199. Altec A150C and 531B psu
  200. What's been broken?
  201. tubes here...
  202. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  203. The Beast...
  204. Looking for Mikael's KT88 Schematic
  205. 1.2k vs 2.5k TC on a 6550 amp?
  206. Ultimate Tube head phone amp.
  207. Selecting Output Transformers for My WOT Line Preamp
  208. Tube microphone
  209. OP tube convertible PP amps?
  210. The "Valvolozzo" - SE amp with torroids
  211. Phase Splitters
  212. A new setup, advice wanted
  213. 6e2 Magic eye datasheet
  214. Another linestage......
  215. VT52: are the triode and pentode alike?
  216. Long term planning
  217. vintage restoration
  218. Some doubt about my first Tube amp (Heater).
  219. Power supply for Single Ended Amplifier
  220. Another CD player DAC tube modification
  221. philips el6400 tubeamp
  222. NTE Metal Film Resistors?
  223. How much power do I really need?
  224. hey guitar playas, try this one!
  225. 6H30 phono with passive RIAA
  226. I need help troubleshooting a EL84 push pull amp.
  227. Tube Data needed please
  228. Filament Transformer
  229. strange tube
  230. 12AX7 and 12AT7 numerical data
  231. DC/DC converter to power tube amp?
  232. Basic Cathode Follower buffer
  233. Marshall EL84 20/20 schematic needed
  234. Help me!!! I need schematic of Pow-Amp using 6V6
  235. gi30, se pentode?
  236. Any experience with Chinese 6N8P
  237. Source for common mode chokes
  238. Low Power FM stereo transmitter?
  239. Rh807
  240. Replacing a power tube (used as driver for mosfet car amp)...how to bias?
  241. Question about sub out on amp
  242. opt question
  243. Tube socket wanted. (help where)
  244. voltage regulator using ECL84 + OB2
  245. Help! 6sn7GT
  246. tubes n needles
  247. PSpice/LTSpice model for 6AU6/EF94?
  248. 5AR4/GZ34 GT Britain
  249. CCS vs mu-follower. What's the difference?
  250. Need advice on two preamp kits.

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