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  1. Hundreds of 6AL5s
  2. Orange/Red Spot on The Anode of Sovtek 6L6GC
  3. Best way to isolate non-isolated RCAs?
  4. Power Resistor Smoking on HF-81
  5. Audio Innovations L-2
  6. first tube project
  7. And now a question about power switch...
  8. 2E24 ultralinear
  9. tube pin numbers
  10. Will This possibly work?
  11. What is the right current for a 300B at 400V and -80V grid bias?
  12. Simple Cap-Coupled CF Advise Needed
  13. tube amp layout reality check
  14. plitron
  15. How long does a 7199 last?
  16. CAE Cascode Diffamp Front End
  17. 6.3V Rectifier Tube Lit by 5V
  18. Precision Electronics Amp w/ 6GT5's, Convert to 6L6's?
  19. WE121A, Please critique me
  20. Grommes / Western Electric G5M Tube Mixer Mods
  21. schemes needed
  22. PP to PPP
  23. aikido voltage swing
  24. voltage drop across a CCS...
  25. bogen db20 Schematic
  26. Mullards branded as Telefunkens???
  27. Pentodes; plate resistance; damping...
  28. PP amp has become SE?
  29. anyone mod a NYAL Moscode superIt?
  30. update to phillips sepp otl?
  31. DC filament supply LC or CL
  32. No Bass Control
  33. Unison Research Simply2 or s2schematics
  34. Border Patrol Power Supply
  35. Any leads on repairing a vintage Alamo Capri tube amp? >>
  36. nanocrystalline amorphous OPT
  37. El84 Pp
  38. Preamp, Euridice?
  39. Has anyone built a PS like this?
  40. Tube sockets in Eagle?
  41. E235L tubes
  42. Grid Input Transformers
  43. Aikido Power Supply
  44. ralph power pp amp with 807 ?
  45. tube stores in moscow
  46. 211 and 845
  47. Need help with amp
  48. Altec 1570B
  49. UL to triode
  50. How can I improve this tube amp (see pics)?
  51. klimo merlin preamp sch wanted
  52. CCS question
  53. *****es brew step 2 ... or grid bias ... how to?
  54. Filaments for the Aikido
  55. RE: RC-19 or RC-30
  56. My experience building a DRD d3A/300B amp
  57. TIP50 + LM317 High Voltage Regulator
  58. Any info on old "Cosmos" amp'?
  59. What more do I need to know?
  60. EBAY Find Of The Year Club LOL
  61. Partial feedback DHP SE amp
  62. newbie question
  63. Tube 1616
  64. Class A tube integrated circuit request
  65. Global Feedback Source Point
  66. These look interesting for that SE project
  67. Phillips AG9008 amp - looking for diagram
  68. 3cx3000
  69. EL86 and speakers? 800 Ohm
  70. Looking for CAT SL-1 Schematic
  71. el84 - 807 ?
  72. Low-voltage Tubebuffer by David Lin
  73. changing diodes with 5AR4 tubes
  74. 801 amp PS
  75. what can I do with these tubes?
  76. How to 'fine tune' your amps?
  77. Otl
  78. Rogers E40a schematic?
  79. Butler Monad A 100
  80. Using the UTC LS-33 as a Push-Pull output for 2A3's
  81. 2A3 AC filament hum
  82. A question about diodes...
  83. 5R4WGY/A/B , input filter capacitors
  84. attenuator hook up?
  85. best material for mounting tubes sideways
  86. Amp suggestions needed
  87. CC vs EI I mean toroids are out of question
  88. Newbie need help in designing tube preamp for my 3886 GC??Please Help me!!
  89. Inviting Comment on Schematic
  90. SE 2A3 input stage
  91. DIY Tube Amp Questions
  92. Need tube buffer circuit for sub-woofer out
  93. How to connect electrostatic shield of power transformer?
  94. Your favourite filament supply for DHT's?
  95. Quantum Impex
  96. Channel Switching Real McTube?
  97. so who owns a dac5 or m8 phono
  98. OPT at frequency extremes
  99. Parafeed with resistive load
  100. EL34 SE triode mode A class sch wanted
  101. Dumont (where theres smoke theres sound)
  102. HYBRID- Schematic
  103. I have a pair of JBL control 5 speakers, which valve amp design you recommend?
  104. sovtek 300B
  105. 12au6 preamp
  106. Engineering Drawings PCB Mount Tube Sockets
  107. Help with a choke for first-time DIY...
  108. Power SRPP
  109. Anode Loading Vs. Cathode Loading ?
  110. Purist 2 Line Amp
  111. Yet Another "EURIDICE" Pre Amp, 4CH This Time
  112. radio receiver
  113. Pioneer SM83 and 500k pot
  114. How many ways to connect a pentode...
  115. How do I go about repairing a vintage Pilotone AA-410A monoblock tube amp?
  116. Any pitfalls to tapping voltage doubler?
  117. 5k to 100 or so line transformers
  118. Ongaku 211 and Supravox 215
  119. Help with 6B4G PP amp.
  120. Help me build my Choke I/P preamp PSU
  121. Pinging "DoomPixie"
  122. 6L6 mono amp questions
  123. Help on 300B power trans...
  124. Spud Farmin' Pt. Deux
  125. No Zen
  126. Reuse or rewind choke
  127. Bell Sound Mono Integrated Amplifier
  128. Help with Melos SHA repair
  129. Phase splitter transformers
  130. 6v6 schems
  131. Cathode feedback
  132. Is this a good choice for El34 PP
  133. 6DK6 amp schematics?
  134. so who here builds amps
  135. 3:1 Line Input X-former ?
  136. * 35 watt * 300B SE = super 300B + Class A2
  137. Quirk in Mullard 5-20 circuit
  138. LL1673 as anode load?
  139. preamp/power amp matching
  140. 0A3 and pentode questions (quickie)
  141. where to find transformer to use
  142. C core output design
  143. Unusual Motorola Console
  144. Improving the Aikido line stage...
  145. Poll..anyone interested in an Aikido linestage PCB group buy?
  146. New 6s45p compare to NOS?
  147. Elektra Print L-3500
  148. 300b tube cage
  149. The 'Tater Patch
  150. 2A3 Sovtek characteristics
  151. 300b filament q, yes another one.
  152. Amp repair help needed.
  153. 833a SE Peak A.F. Grid Voltage
  154. DHP driver for 845
  155. Fisher 55-a
  156. Ultralinear Miller capacitance
  157. Simplest OTL?
  158. presence control
  159. Black Gate N cathode formation voltage
  160. Any other reported fragility for 6H30pi?
  161. Help! circuit diagram
  162. Another Gm70 amp !!
  163. 833a Amp 75W SE
  164. Black Gate N-series question
  165. 300B+
  166. Koren's spice models
  167. 50 Power triode
  168. Vertical deflection tubes for audio output?
  169. warmth in different tube types
  170. OT data
  171. Sansui 1000A OPT's
  172. CF biasing and load ???s
  173. improving the Mcintosh C22
  174. An amp that melts 6L6s?
  175. 8ohm speaker on 15 or 3.5 ohm tranny
  176. Choosing a brand as a standard
  177. The power of transformation
  178. wanted- 845 pwr amp p.p.
  179. Heathkit S-33 Information needed.
  180. Leak Stereo 20 - solid state rectifier?
  181. My rebuild 6sn7gt tubes line pre-amp.
  182. CircuitMaker Vacuum Tube model
  183. Mf X-pre
  184. E182CC, E88CC SRPP at low voltage
  185. Debugging my Aikido
  186. SRPP linestage help
  187. Transformer question
  188. Tube Spice Model Problem
  189. Just found a zenith 7g01z in the basement
  190. your next level story - Philosophy of EE 101
  191. JLTI Tube Preamp
  192. squeal in amplifier
  193. ALTEC Line & Bridging Transformer Data??
  194. Tube noob needs some help on PSU
  195. Preamp PSU Design Help
  196. GZ37 Substitution?
  197. help disigning 12AY7 based mic pre
  198. I m confuse ! expert help
  199. Removing a pot.
  200. diyparadiso kits?
  201. Help with linestage power supply
  202. TX103 - RJM 6DJ8 - TX102 preamp
  203. Replace the field coil spk with Electromagnetic dynamic spk
  204. Gu50 output problems
  205. SRPP: adifferent perspective
  206. Fixed or self bias?
  207. 211 amp PSU question
  208. Help! transformer overheating!
  209. more ebay stuff
  210. 6KG6, output stage & PSpice
  211. 6C33C-B Failure Mode?
  212. manley 300b preamp schematic required
  213. 115 V transformer on 230 V ???
  214. Hoffman Amps Turret Lugs?
  215. 300B Reliablity
  216. What happens when you starve a heater?
  217. se 6c33c or se el34 schematic
  218. Altec A150C and 531B psu
  219. What's been broken?
  220. tubes here...
  221. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  222. The Beast...
  223. Looking for Mikael's KT88 Schematic
  224. 1.2k vs 2.5k TC on a 6550 amp?
  225. Ultimate Tube head phone amp.
  226. Selecting Output Transformers for My WOT Line Preamp
  227. Tube microphone
  228. OP tube convertible PP amps?
  229. The "Valvolozzo" - SE amp with torroids
  230. Phase Splitters
  231. A new setup, advice wanted
  232. 6e2 Magic eye datasheet
  233. Another linestage......
  234. VT52: are the triode and pentode alike?
  235. Long term planning
  236. vintage restoration
  237. Some doubt about my first Tube amp (Heater).
  238. Power supply for Single Ended Amplifier
  239. Another CD player DAC tube modification
  240. philips el6400 tubeamp
  241. How much power do I really need?
  242. 6H30 phono with passive RIAA
  243. I need help troubleshooting a EL84 push pull amp.
  244. Tube Data needed please
  245. Filament Transformer
  246. strange tube
  247. 12AX7 and 12AT7 numerical data
  248. DC/DC converter to power tube amp?
  249. Basic Cathode Follower buffer
  250. Help me!!! I need schematic of Pow-Amp using 6V6

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