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  1. two questions on Parafeed amplifier
  2. 6AU5GT
  3. Connection advice
  4. 'Tube'-ing a reel-to-reel player.
  5. EL34 make up by PCB
  6. wanted RIAA schematic
  7. What is the best software to create tube schematic
  8. Soft clipping acceptable?
  9. help for this amp
  10. Pentode PP amp for comments, please
  11. 966A rectifier
  12. 938 power triode
  13. PL36 PP Amplifier 22W Full construction details
  14. Quick question about the output of my amp
  15. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  16. An "All American" tube Project
  17. Aikido and output transformer
  18. Why are Hammond SE OPTs dissed? Heavier than the competition...
  19. Driver stage headroom
  20. Help me before I deal hot electric death to myself (PS question)
  21. Two cathode resistor bypass questions
  22. What do you guys think?
  23. Antique Sound Lab Aq1003
  24. Audiomaster integrated (Valve) amp
  25. PP Amp using 811A
  26. Replacing ECC83 in Leak Stereo50 with ECC808
  27. 6N30/6H30 Datasheet
  28. Equivalents to 6888
  29. Input voltage
  30. Converting from integrated to pure amp
  31. Final schematic, I think?
  32. Toroidal core saturation
  33. Mystery SE OPT
  34. Is this a Spud Amp ?
  35. input cap V rating
  36. 6922 Heater - BIAS
  37. JJ 2A3-40 Watt?
  38. 12AU7 testing result: Are these tubes still good?
  39. "OTK" stamp on russian devices
  40. Where did nj7p.org go ?
  41. New to forum! Or: A few newbie questions
  42. Powersuply Le Bong?
  43. Fixed Bias: the ups and downs
  44. Bias Adjustment Question
  45. Multiple secondaries hook-up!!!
  46. Plate voltage related to sound?
  47. Array speakers & OTL
  48. First Post - Hum on 5687 Pre-amp
  49. DC powered amps
  50. Evaluating Unknown Power Transformers
  51. 0v grid bias with UL connection?
  52. LV Filament supply quandry
  53. which tube using NonDirect heat with best-class sound ?
  54. Surround Decoder - Subtract amplifier
  55. New To Forum - First Post
  56. Try to understand
  57. tube site
  58. OTL with 6S19P?
  59. What should B+ on 300B push-pull be?
  60. Regulated PSU with EL84
  61. How do I design minimum current for 35W PP AMP
  62. Buying bits'n'bobs...
  63. Can't make this address work.....
  64. schematics for 6C33 single ended OTL?
  65. valve preamp
  66. trio W-38 problems
  67. Otl Se
  68. My 2A3 is being left behind
  69. Wal-Mart power supplies
  70. Nice deal!
  71. Look for high-voltage regulator projects
  72. Typical plate Voltage for el34
  73. Arc Sp8
  74. New Phono amp - developing stage
  75. CCS Bang for the buck output or driver?
  76. pentode driver sanity check - before i build
  77. 6av6 mini pre didn t work
  78. CCS in the output stage
  79. Looking for Schematic using KC3 Preamp ?
  80. If you are looking to try balanced AC power....
  81. The best Coupling cap (under $20)
  82. What makes a speaker "tube-friendly"?
  83. Using 6L6 for 300b driver
  84. Heater reference
  85. 6G15 output transformer selection
  86. Morgan Jones and cascodes
  87. 6A3/6B4G/6S4S(2A3/2S4S) project
  88. Question about changing a hybrid
  89. High-end Class A valve amplifiers will be illegal in USA?
  90. transformerless supply
  91. "Quasi" ultralinear experiment - questions...
  92. Help on a LUXMAN MQ 3600
  93. Changing from 6X4 to EZ81
  94. Design questions, driver stage for SE.
  95. S5 K-12G Question
  96. Ideas for a tube that heavily distorts ?
  97. CCS current sink in the output of my 2 tube 6080 amp.
  98. What do you think about my design (based on IMPAMP)
  99. Larger chassis Hole Punches
  100. Need help form Germany
  101. Output Impedance
  102. How to connect Gridchoke?
  103. Triode connecting a pentode?
  104. help on line pre-amp
  105. Edcor P-P Transformers
  106. chassis work in NYC area
  107. Please help ID this rectifier:
  108. Power Supply Voltage For 5881/6L6 Amp
  109. Audio Electronic Supply AE-25DJH
  110. Trouble: Main transfo short?
  111. help with chassis layout
  112. "Preamp" with remote (long)
  113. 6BY5 High Voltage & High Current Choke Input Design P.S.
  114. x-10 d and x-can version 2/3 schematics
  115. Ugly, but versatile, new amp
  116. Capacitor advice needed for AVA PAS rebuild
  117. Mic pre transformers
  118. Gain of JE labs 300B?
  119. Troubleshooting.
  120. new to the forum pre-amp
  121. Preamp output delay
  122. Super Triode Connection Amplifier Build with 6BM8 and 6AK5
  123. 1st project hum or buzz
  124. Impedans of trafo for EL504 inSE
  125. Can I use 2C39-B to sound
  126. usage of line out trans.
  127. eagle with tubes ?
  128. Rlim in GZ33 datasheet?
  129. LT1085 Current Regulation for DHT filaments
  130. Help Fixing Bias
  131. MC phono amp
  132. 10M45 Mu-Stage Idea?
  133. Isco 494
  134. looking for spice model of 6HA5 or similar tubes
  135. 6SL7 to 6SN7 substitution in power amp?
  136. Adding Subwoofer output to Aikido preamp circuit
  137. A request for PP 6c33c Schematics
  138. Thumping from left speaker when volume is low
  139. Crosstalk in twintriodes?
  140. Example Schematics?
  141. how to choose a rectifier tube? (specifically octals)
  142. Rather odd valve socket - anyone have any ideas?
  143. PS for GG - look for better channel separation
  144. help! T16 OTL schematic
  145. Bench PSU for tubes
  146. FM Stereo Tuner Tube Schematic ?
  147. Smoking Transformer
  148. Questions on 1:1:1 driver transformer
  149. Pentode vrs Mosfet “MU-Stage”
  150. Transformer center tap connections
  151. dumb question :P KT88...
  152. Tube rectifier & regulator (modified)
  153. Some advice on this power supply
  154. Looking for Amperex C11550/1 data.
  155. Inserting tubes into Express PCB
  156. What do you think of this? (211 A2 SE)
  157. Help w/ diyAudio CCS implementation
  158. First DIY Amp Project
  159. HELP with PHONO and MIC preamps.
  160. CLC vs LCLC: is there any advantages other...
  161. Problem with old Heathkit
  162. Does anyone interested tube rectifier & regulator PCB ?
  163. Velleman K4040 conversion from EL34's to KT88's
  164. finished my PCC88 preamp
  165. Max 300B SE output possible with James 6123HS ?
  166. Who's right re bias adjustment versus plate voltage
  167. voltage current regulator
  168. Yarland 34 ciii amp
  169. CCS/5842/300B ground schematic.
  170. tube sockets
  171. PX25
  172. Research on tubes and circuits simple circuits
  173. using only 1/2 of a dual triode
  174. Some HMMM on my SRPP
  175. Grid Stopper
  176. diy tube amp problem
  177. The Red Light District - another PP EL84 amp
  178. Balanced 300B output for headphones or loudspeakers?
  179. 5692, the best?
  180. Power transformer quality differences
  181. Is it possible to use regulated DC for a rectifier tube?
  182. Transformer Secondary Power
  183. Phono preamp
  184. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  185. Physically small rectifier tube with 5V heaters
  186. Distorting 5687 preamp circuit
  187. Looking for a good 300B datasheet
  188. CCS is your friend!
  189. Valve Pre Amp & Class D Power Amp
  190. heater supply questions
  191. sub-mini valve
  192. Amp kit recommendations
  193. First amp for a new in valves
  194. Loud buzz and hum from one monoblock!!!
  195. Stueyh
  196. Big *** '50s Power Supply, now what? 300B SET ideas...
  197. Phono Preamp Design Needed
  198. Severe oscillation in 6L6 amp
  199. How to tweak warmth to a power amp?
  200. Can anyone explain me this Loftin White amp?
  201. Substituting dual triodes
  202. ValveWave-1 My first Tube Project
  203. changing output capacitor value? what should I consider?
  204. motor run caps in the output? good or bad idea?
  205. resistors across the heater voltage then the middle is grounded
  206. Switched Pot Source Needed
  207. transcendar transformer
  208. Installing tubes upside-down? Bad? Maybe it doesn't matter?
  209. Voltage Multipliers
  210. I want to build an AM Tube Tuner
  211. Tube Amp CCS?
  212. S-5 Electronics Tube Amp Kit
  213. Tube amps from eBay (China)
  214. filament supply: batteries v TentLabs?
  215. replace a 5651 tube with a zener?
  216. tube design books
  217. Bogen chb100 input conversion suggestions
  218. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  219. R-core xformers from China
  220. Counterpoint Service manual wanted
  221. Two chokes in one pot?
  222. help with a transformer
  223. 311T (211 alike) HIGH power triode
  224. Re-attaching anode cap to 805 or 811A tube
  225. "Fisher Doctor"
  226. Aikido + class D in the output stage
  227. tube-shop-com
  228. Ultrasonic heaters
  229. Grounding the Filament Winding
  230. Lundahl LL1680 for balanced output
  231. Website is back & new books posted
  232. strange tube G1 S/5
  233. First Tube Amp Needs an Overhaul
  234. pspice models for tubes
  235. Source for iron cores?
  236. Quad EL84 SE question
  237. Use of 12j1l and gu-50 tubes
  238. Shuguang 300B-98C
  239. Philips AG-9016 Upgrades???
  240. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  241. tube amp in a PCB with a toroidal xformer beside it?
  242. Need advice running 220v in USA
  243. Parallel-Push-Pull KT66 organ amp conversion ???
  244. new on tubes
  245. Balance 5687 pre-amp any advise??
  246. The Limitations of an EL34 in UL
  247. Source for tube bases....?
  248. 10Y, 26, 27 and 45: relative microphonics
  249. KT77 Mod Question/Idea/Punshishment
  250. KT88 SE with Edcor xfrmr

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