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  1. Final schematic, I think?
  2. Toroidal core saturation
  3. Mystery SE OPT
  4. Is this a Spud Amp ?
  5. input cap V rating
  6. 6922 Heater - BIAS
  7. JJ 2A3-40 Watt?
  8. 12AU7 testing result: Are these tubes still good?
  9. "OTK" stamp on russian devices
  10. Where did nj7p.org go ?
  11. New to forum! Or: A few newbie questions
  12. Powersuply Le Bong?
  13. Fixed Bias: the ups and downs
  14. Bias Adjustment Question
  15. Multiple secondaries hook-up!!!
  16. Plate voltage related to sound?
  17. Array speakers & OTL
  18. First Post - Hum on 5687 Pre-amp
  19. DC powered amps
  20. Evaluating Unknown Power Transformers
  21. 0v grid bias with UL connection?
  22. LV Filament supply quandry
  23. which tube using NonDirect heat with best-class sound ?
  24. Surround Decoder - Subtract amplifier
  25. New To Forum - First Post
  26. Try to understand
  27. tube site
  28. OTL with 6S19P?
  29. What should B+ on 300B push-pull be?
  30. Regulated PSU with EL84
  31. How do I design minimum current for 35W PP AMP
  32. Buying bits'n'bobs...
  33. Can't make this address work.....
  34. schematics for 6C33 single ended OTL?
  35. Guitar amp input tube paralleled
  36. valve preamp
  37. trio W-38 problems
  38. Cheap Russian 2.2uF 400V PIO Capacitor
  39. Otl Se
  40. My 2A3 is being left behind
  41. SE for Bass?
  42. Wal-Mart power supplies
  43. Nice deal!
  44. Look for high-voltage regulator projects
  45. Typical plate Voltage for el34
  46. Arc Sp8
  47. New Phono amp - developing stage
  48. fender princeton 5D2.. DONE!
  49. CCS Bang for the buck output or driver?
  50. pentode driver sanity check - before i build
  51. 6av6 mini pre didn t work
  52. CCS in the output stage
  53. Looking for Schematic using KC3 Preamp ?
  54. If you are looking to try balanced AC power....
  55. The best Coupling cap (under $20)
  56. What makes a speaker "tube-friendly"?
  57. Using 6L6 for 300b driver
  58. Heater reference
  59. 6G15 output transformer selection
  60. Morgan Jones and cascodes
  61. 6A3/6B4G/6S4S(2A3/2S4S) project
  62. blues junior complaints and 6G15 question
  63. Question about changing a hybrid
  64. High-end Class A valve amplifiers will be illegal in USA?
  65. transformerless supply
  66. "Quasi" ultralinear experiment - questions...
  67. Help on a LUXMAN MQ 3600
  68. Changing from 6X4 to EZ81
  69. Design questions, driver stage for SE.
  70. S5 K-12G Question
  71. Ideas for a tube that heavily distorts ?
  72. CCS current sink in the output of my 2 tube 6080 amp.
  73. What do you think about my design (based on IMPAMP)
  74. spearinol oil (in ASC caps)
  75. Larger chassis Hole Punches
  76. HV Diode Selection
  77. Need help form Germany
  78. Output Impedance
  79. How to connect Gridchoke?
  80. Microphone In Guitar amp Question
  81. Triode connecting a pentode?
  82. help on line pre-amp
  83. Edcor P-P Transformers
  84. chassis work in NYC area
  85. low THD guitar preamp
  86. Please help ID this rectifier:
  87. Power Supply Voltage For 5881/6L6 Amp
  88. Audio Electronic Supply AE-25DJH
  89. Trouble: Main transfo short?
  90. help with chassis layout
  91. "Preamp" with remote (long)
  92. 6BY5 High Voltage & High Current Choke Input Design P.S.
  93. x-10 d and x-can version 2/3 schematics
  94. Ugly, but versatile, new amp
  95. Capacitor advice needed for AVA PAS rebuild
  96. Mic pre transformers
  97. Gain of JE labs 300B?
  98. Troubleshooting.
  99. new to the forum pre-amp
  100. Preamp output delay
  101. Super Triode Connection Amplifier Build with 6BM8 and 6AK5
  102. 1st project hum or buzz
  103. Impedans of trafo for EL504 inSE
  104. Can I use 2C39-B to sound
  105. usage of line out trans.
  106. eagle with tubes ?
  107. Rlim in GZ33 datasheet?
  108. LT1085 Current Regulation for DHT filaments
  109. Help Fixing Bias
  110. MC phono amp
  111. 10M45 Mu-Stage Idea?
  112. Hickok 6000A with 6C33 & 13E1...
  113. Isco 494
  114. looking for spice model of 6HA5 or similar tubes
  115. 6SL7 to 6SN7 substitution in power amp?
  116. Adding Subwoofer output to Aikido preamp circuit
  117. A request for PP 6c33c Schematics
  118. Thumping from left speaker when volume is low
  119. Crosstalk in twintriodes?
  120. Example Schematics?
  121. how to choose a rectifier tube? (specifically octals)
  122. Rather odd valve socket - anyone have any ideas?
  123. PS for GG - look for better channel separation
  124. help! T16 OTL schematic
  125. Bench PSU for tubes
  126. Tube Bogen J330 PA amp
  127. FM Stereo Tuner Tube Schematic ?
  128. Conn organ conversion to amp
  129. Smoking Transformer
  130. Questions on 1:1:1 driver transformer
  131. Pentode vrs Mosfet “MU-Stage”
  132. Transformer center tap connections
  133. dumb question :P KT88...
  134. Tube rectifier & regulator (modified)
  135. Some advice on this power supply
  136. Looking for Amperex C11550/1 data.
  137. Inserting tubes into Express PCB
  138. What do you think of this? (211 A2 SE)
  139. Help w/ diyAudio CCS implementation
  140. First DIY Amp Project
  141. HELP with PHONO and MIC preamps.
  142. CLC vs LCLC: is there any advantages other...
  143. Problem with old Heathkit
  144. Does anyone interested tube rectifier & regulator PCB ?
  145. Velleman K4040 conversion from EL34's to KT88's
  146. finished my PCC88 preamp
  147. Max 300B SE output possible with James 6123HS ?
  148. Who's right re bias adjustment versus plate voltage
  149. voltage current regulator
  150. Yarland 34 ciii amp
  151. CCS/5842/300B ground schematic.
  152. tube sockets
  153. PX25
  154. Research on tubes and circuits simple circuits
  155. using only 1/2 of a dual triode
  156. Some HMMM on my SRPP
  157. Grid Stopper
  158. diy tube amp problem
  159. The Red Light District - another PP EL84 amp
  160. Balanced 300B output for headphones or loudspeakers?
  161. 5692, the best?
  162. Power transformer quality differences
  163. Is it possible to use regulated DC for a rectifier tube?
  164. Transformer Secondary Power
  165. Phono preamp
  166. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  167. Physically small rectifier tube with 5V heaters
  168. Distorting 5687 preamp circuit
  169. Looking for a good 300B datasheet
  170. CCS is your friend!
  171. Valve Pre Amp & Class D Power Amp
  172. heater supply questions
  173. sub-mini valve
  174. Amp kit recommendations
  175. First amp for a new in valves
  176. Loud buzz and hum from one monoblock!!!
  177. Stueyh
  178. Big *** '50s Power Supply, now what? 300B SET ideas...
  179. Phono Preamp Design Needed
  180. antique fender bassman 50 retubed HELP
  181. Severe oscillation in 6L6 amp
  182. How to tweak warmth to a power amp?
  183. Can anyone explain me this Loftin White amp?
  184. Substituting dual triodes
  185. ValveWave-1 My first Tube Project
  186. changing output capacitor value? what should I consider?
  187. motor run caps in the output? good or bad idea?
  188. resistors across the heater voltage then the middle is grounded
  189. Switched Pot Source Needed
  190. transcendar transformer
  191. Installing tubes upside-down? Bad? Maybe it doesn't matter?
  192. Voltage Multipliers
  193. I want to build an AM Tube Tuner
  194. Tube Amp CCS?
  195. S-5 Electronics Tube Amp Kit
  196. Tube amps from eBay (China)
  197. filament supply: batteries v TentLabs?
  198. replace a 5651 tube with a zener?
  199. tube design books
  200. Bogen chb100 input conversion suggestions
  201. MesaBoogie 400+ clone
  202. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  203. R-core xformers from China
  204. Counterpoint Service manual wanted
  205. Two chokes in one pot?
  206. help with a transformer
  207. 311T (211 alike) HIGH power triode
  208. Re-attaching anode cap to 805 or 811A tube
  209. "Fisher Doctor"
  210. Aikido + class D in the output stage
  211. tube-shop-com
  212. Ultrasonic heaters
  213. Grounding the Filament Winding
  214. Lundahl LL1680 for balanced output
  215. Website is back & new books posted
  216. strange tube G1 S/5
  217. First Tube Amp Needs an Overhaul
  218. pspice models for tubes
  219. Source for iron cores?
  220. Quad EL84 SE question
  221. Use of 12j1l and gu-50 tubes
  222. Shuguang 300B-98C
  223. Philips AG-9016 Upgrades???
  224. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  225. tube amp in a PCB with a toroidal xformer beside it?
  226. Need advice running 220v in USA
  227. My Fender Princeton FD2 chasis (clone)
  228. Parallel-Push-Pull KT66 organ amp conversion ???
  229. new on tubes
  230. Balance 5687 pre-amp any advise??
  231. The Limitations of an EL34 in UL
  232. Source for tube bases....?
  233. 10Y, 26, 27 and 45: relative microphonics
  234. KT77 Mod Question/Idea/Punshishment
  235. KT88 SE with Edcor xfrmr
  236. Diy Distortion Pedal
  237. 45 fans – expanded horizons upstream?
  238. 12B4a Cathode Follower
  239. Hybrid voltage doubler using tube and diode
  240. Finally finished my first tube amp!
  241. advice on an EL84 Push pull Amp schematic
  242. Vintage radio
  243. Look for 12AU7 Preamp Circuit .
  244. PSU question? Going tube rectified
  245. PSU Rebuild Help Pleas
  246. Screeching tubes
  247. help in adjusting Vout in the power supply of the "Brute force in a line stage" by Er
  248. Fisher 800 restoration
  249. stern's ecl86 amp
  250. Look for Western Electric KS-16547-L1 circuit diagram

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