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  1. A suspect EL34
  2. Best way of reducing heater voltage?
  3. Musical Instrument tube amp part suppliers
  4. tubelab
  5. My first power amp
  6. El34 SE pentode
  7. All Electron Tubes Manufacturers
  8. Mu stage driver
  9. two questions on Parafeed amplifier
  10. 6AU5GT
  11. Connection advice
  12. 'Tube'-ing a reel-to-reel player.
  13. EL34 make up by PCB
  14. wanted RIAA schematic
  15. What is the best software to create tube schematic
  16. Soft clipping acceptable?
  17. help for this amp
  18. Pentode PP amp for comments, please
  19. 966A rectifier
  20. 938 power triode
  21. PL36 PP Amplifier 22W Full construction details
  22. Quick question about the output of my amp
  23. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  24. An "All American" tube Project
  25. Aikido and output transformer
  26. Why are Hammond SE OPTs dissed? Heavier than the competition...
  27. Driver stage headroom
  28. Help me before I deal hot electric death to myself (PS question)
  29. AVO CT-160
  30. Two cathode resistor bypass questions
  31. What do you guys think?
  32. Antique Sound Lab Aq1003
  33. Audiomaster integrated (Valve) amp
  34. PP Amp using 811A
  35. Replacing ECC83 in Leak Stereo50 with ECC808
  36. 6N30/6H30 Datasheet
  37. Equivalents to 6888
  38. Input voltage
  39. Converting from integrated to pure amp
  40. Final schematic, I think?
  41. Toroidal core saturation
  42. Mystery SE OPT
  43. Is this a Spud Amp ?
  44. input cap V rating
  45. 6922 Heater - BIAS
  46. JJ 2A3-40 Watt?
  47. 12AU7 testing result: Are these tubes still good?
  48. "OTK" stamp on russian devices
  49. Where did nj7p.org go ?
  50. New to forum! Or: A few newbie questions
  51. Powersuply Le Bong?
  52. Fixed Bias: the ups and downs
  53. Bias Adjustment Question
  54. Multiple secondaries hook-up!!!
  55. Plate voltage related to sound?
  56. Array speakers & OTL
  57. First Post - Hum on 5687 Pre-amp
  58. DC powered amps
  59. Evaluating Unknown Power Transformers
  60. 0v grid bias with UL connection?
  61. LV Filament supply quandry
  62. which tube using NonDirect heat with best-class sound ?
  63. Surround Decoder - Subtract amplifier
  64. New To Forum - First Post
  65. Try to understand
  66. tube site
  67. OTL with 6S19P?
  68. What should B+ on 300B push-pull be?
  69. Regulated PSU with EL84
  70. How do I design minimum current for 35W PP AMP
  71. Buying bits'n'bobs...
  72. Can't make this address work.....
  73. schematics for 6C33 single ended OTL?
  74. valve preamp
  75. trio W-38 problems
  76. Cheap Russian 2.2uF 400V PIO Capacitor
  77. Otl Se
  78. My 2A3 is being left behind
  79. Wal-Mart power supplies
  80. Nice deal!
  81. Look for high-voltage regulator projects
  82. Typical plate Voltage for el34
  83. Arc Sp8
  84. New Phono amp - developing stage
  85. CCS Bang for the buck output or driver?
  86. pentode driver sanity check - before i build
  87. 6av6 mini pre didn t work
  88. CCS in the output stage
  89. Looking for Schematic using KC3 Preamp ?
  90. If you are looking to try balanced AC power....
  91. The best Coupling cap (under $20)
  92. What makes a speaker "tube-friendly"?
  93. Using 6L6 for 300b driver
  94. Heater reference
  95. 6G15 output transformer selection
  96. Morgan Jones and cascodes
  97. 6A3/6B4G/6S4S(2A3/2S4S) project
  98. Question about changing a hybrid
  99. High-end Class A valve amplifiers will be illegal in USA?
  100. transformerless supply
  101. "Quasi" ultralinear experiment - questions...
  102. Help on a LUXMAN MQ 3600
  103. Changing from 6X4 to EZ81
  104. Design questions, driver stage for SE.
  105. S5 K-12G Question
  106. Ideas for a tube that heavily distorts ?
  107. CCS current sink in the output of my 2 tube 6080 amp.
  108. What do you think about my design (based on IMPAMP)
  109. Larger chassis Hole Punches
  110. Need help form Germany
  111. Output Impedance
  112. How to connect Gridchoke?
  113. Triode connecting a pentode?
  114. help on line pre-amp
  115. Edcor P-P Transformers
  116. chassis work in NYC area
  117. Please help ID this rectifier:
  118. Power Supply Voltage For 5881/6L6 Amp
  119. Audio Electronic Supply AE-25DJH
  120. Trouble: Main transfo short?
  121. help with chassis layout
  122. "Preamp" with remote (long)
  123. 6BY5 High Voltage & High Current Choke Input Design P.S.
  124. x-10 d and x-can version 2/3 schematics
  125. Ugly, but versatile, new amp
  126. Capacitor advice needed for AVA PAS rebuild
  127. Mic pre transformers
  128. Gain of JE labs 300B?
  129. Troubleshooting.
  130. new to the forum pre-amp
  131. Preamp output delay
  132. Super Triode Connection Amplifier Build with 6BM8 and 6AK5
  133. 1st project hum or buzz
  134. Impedans of trafo for EL504 inSE
  135. Can I use 2C39-B to sound
  136. usage of line out trans.
  137. eagle with tubes ?
  138. Rlim in GZ33 datasheet?
  139. LT1085 Current Regulation for DHT filaments
  140. Help Fixing Bias
  141. MC phono amp
  142. 10M45 Mu-Stage Idea?
  143. Hickok 6000A with 6C33 & 13E1...
  144. Isco 494
  145. looking for spice model of 6HA5 or similar tubes
  146. 6SL7 to 6SN7 substitution in power amp?
  147. Adding Subwoofer output to Aikido preamp circuit
  148. A request for PP 6c33c Schematics
  149. Thumping from left speaker when volume is low
  150. Crosstalk in twintriodes?
  151. Example Schematics?
  152. how to choose a rectifier tube? (specifically octals)
  153. Rather odd valve socket - anyone have any ideas?
  154. PS for GG - look for better channel separation
  155. help! T16 OTL schematic
  156. Bench PSU for tubes
  157. FM Stereo Tuner Tube Schematic ?
  158. Conn organ conversion to amp
  159. Smoking Transformer
  160. Questions on 1:1:1 driver transformer
  161. Pentode vrs Mosfet “MU-Stage”
  162. Transformer center tap connections
  163. dumb question :P KT88...
  164. Tube rectifier & regulator (modified)
  165. Some advice on this power supply
  166. Looking for Amperex C11550/1 data.
  167. Inserting tubes into Express PCB
  168. What do you think of this? (211 A2 SE)
  169. Help w/ diyAudio CCS implementation
  170. First DIY Amp Project
  171. HELP with PHONO and MIC preamps.
  172. CLC vs LCLC: is there any advantages other...
  173. Problem with old Heathkit
  174. Does anyone interested tube rectifier & regulator PCB ?
  175. Velleman K4040 conversion from EL34's to KT88's
  176. finished my PCC88 preamp
  177. Max 300B SE output possible with James 6123HS ?
  178. Who's right re bias adjustment versus plate voltage
  179. voltage current regulator
  180. Yarland 34 ciii amp
  181. CCS/5842/300B ground schematic.
  182. tube sockets
  183. PX25
  184. Research on tubes and circuits simple circuits
  185. using only 1/2 of a dual triode
  186. Some HMMM on my SRPP
  187. Grid Stopper
  188. diy tube amp problem
  189. The Red Light District - another PP EL84 amp
  190. Balanced 300B output for headphones or loudspeakers?
  191. 5692, the best?
  192. Power transformer quality differences
  193. Is it possible to use regulated DC for a rectifier tube?
  194. Transformer Secondary Power
  195. Phono preamp
  196. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  197. Physically small rectifier tube with 5V heaters
  198. Distorting 5687 preamp circuit
  199. Looking for a good 300B datasheet
  200. CCS is your friend!
  201. Valve Pre Amp & Class D Power Amp
  202. heater supply questions
  203. sub-mini valve
  204. Amp kit recommendations
  205. First amp for a new in valves
  206. Loud buzz and hum from one monoblock!!!
  207. Stueyh
  208. Big *** '50s Power Supply, now what? 300B SET ideas...
  209. Phono Preamp Design Needed
  210. Severe oscillation in 6L6 amp
  211. How to tweak warmth to a power amp?
  212. Can anyone explain me this Loftin White amp?
  213. Substituting dual triodes
  214. ValveWave-1 My first Tube Project
  215. changing output capacitor value? what should I consider?
  216. motor run caps in the output? good or bad idea?
  217. resistors across the heater voltage then the middle is grounded
  218. Switched Pot Source Needed
  219. transcendar transformer
  220. Installing tubes upside-down? Bad? Maybe it doesn't matter?
  221. Voltage Multipliers
  222. I want to build an AM Tube Tuner
  223. Tube Amp CCS?
  224. S-5 Electronics Tube Amp Kit
  225. Tube amps from eBay (China)
  226. filament supply: batteries v TentLabs?
  227. replace a 5651 tube with a zener?
  228. tube design books
  229. Bogen chb100 input conversion suggestions
  230. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  231. R-core xformers from China
  232. Counterpoint Service manual wanted
  233. Two chokes in one pot?
  234. help with a transformer
  235. 311T (211 alike) HIGH power triode
  236. Re-attaching anode cap to 805 or 811A tube
  237. "Fisher Doctor"
  238. Aikido + class D in the output stage
  239. tube-shop-com
  240. Ultrasonic heaters
  241. Grounding the Filament Winding
  242. Lundahl LL1680 for balanced output
  243. Website is back & new books posted
  244. strange tube G1 S/5
  245. First Tube Amp Needs an Overhaul
  246. pspice models for tubes
  247. Source for iron cores?
  248. Quad EL84 SE question
  249. Use of 12j1l and gu-50 tubes
  250. Shuguang 300B-98C

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