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  1. Amp that has the biggest number of irons
  2. 12AX7A replacement
  3. Bogen CHB-10A Conversion, need help and advice
  4. Who said it was a good idea to try pentode!
  5. Input level
  6. 6V6GT
  7. 6AR6
  8. Any TCJ Push-Pull Calculator users?
  9. 211 Push pull operation points
  10. Edcor CXSE25-8-4K vs Hammond 1628SEA?
  11. Bass guitar preamp
  12. 50W KT88 PP w/ NFB on Bonavolta
  13. Looking for nuvistor pre-amp preamp schematic please. 6CW4?
  14. BELL 3030 Amplifier
  15. Diy Paradise!
  16. Another PP 6B4G
  17. How to get a buffer with overdrive from a 12AX7 ?
  18. Pulsating Glow
  19. Question on using glow tubes (v-regs)
  20. Eliminating the OPT: impedance matching
  21. KT88 and push-pull ultra-linear
  22. Positronic Tubes
  23. Paint steel chassis with the "aluminum paint" used on wire fence?
  24. Best bias for 6cg7
  25. Coupling caps test bed
  26. 829B Based Amp
  27. slight hum still haunting me
  28. CCS bias question
  29. Can't get solder to stick
  30. EL84 amp plus subwoofers? STUPID? OR NOT?
  31. Johan Potgieter
  32. parallel sections
  33. PL504/EL84 SE vs parafeed
  34. [help] Look for McIntosh MI-200 Circuit diagram
  35. My experience: the cheap punch set VS Greenlee punch
  36. 6V6GT SE schematic -need!!!
  37. What's the deal with Broskie's iPod buddy?
  38. a quiz about AC power
  39. Beard P100 Amplifier
  40. Quick identification question
  41. 6V6 guitar amp design attempt
  42. Some more RIAA questions
  43. what to do?
  44. A suspect EL34
  45. Best way of reducing heater voltage?
  46. Musical Instrument tube amp part suppliers
  47. tubelab
  48. My first power amp
  49. El34 SE pentode
  50. All Electron Tubes Manufacturers
  51. Mu stage driver
  52. two questions on Parafeed amplifier
  53. 6AU5GT
  54. Connection advice
  55. 'Tube'-ing a reel-to-reel player.
  56. EL34 make up by PCB
  57. wanted RIAA schematic
  58. What is the best software to create tube schematic
  59. Soft clipping acceptable?
  60. help for this amp
  61. Pentode PP amp for comments, please
  62. 966A rectifier
  63. 938 power triode
  64. PL36 PP Amplifier 22W Full construction details
  65. Quick question about the output of my amp
  66. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  67. An "All American" tube Project
  68. Aikido and output transformer
  69. Why are Hammond SE OPTs dissed? Heavier than the competition...
  70. Driver stage headroom
  71. Help me before I deal hot electric death to myself (PS question)
  72. AVO CT-160
  73. Two cathode resistor bypass questions
  74. Home-Made Tube Guitar Heads
  75. What do you guys think?
  76. Antique Sound Lab Aq1003
  77. Audiomaster integrated (Valve) amp
  78. PP Amp using 811A
  79. Replacing ECC83 in Leak Stereo50 with ECC808
  80. 6N30/6H30 Datasheet
  81. Equivalents to 6888
  82. Input voltage
  83. Converting from integrated to pure amp
  84. Final schematic, I think?
  85. Toroidal core saturation
  86. Mystery SE OPT
  87. Is this a Spud Amp ?
  88. input cap V rating
  89. 6922 Heater - BIAS
  90. JJ 2A3-40 Watt?
  91. 12AU7 testing result: Are these tubes still good?
  92. "OTK" stamp on russian devices
  93. Where did nj7p.org go ?
  94. New to forum! Or: A few newbie questions
  95. Powersuply Le Bong?
  96. Fixed Bias: the ups and downs
  97. Bias Adjustment Question
  98. Multiple secondaries hook-up!!!
  99. Plate voltage related to sound?
  100. Array speakers & OTL
  101. First Post - Hum on 5687 Pre-amp
  102. DC powered amps
  103. Evaluating Unknown Power Transformers
  104. 0v grid bias with UL connection?
  105. LV Filament supply quandry
  106. which tube using NonDirect heat with best-class sound ?
  107. Surround Decoder - Subtract amplifier
  108. New To Forum - First Post
  109. Try to understand
  110. tube site
  111. OTL with 6S19P?
  112. What should B+ on 300B push-pull be?
  113. Regulated PSU with EL84
  114. How do I design minimum current for 35W PP AMP
  115. Buying bits'n'bobs...
  116. Can't make this address work.....
  117. schematics for 6C33 single ended OTL?
  118. Guitar amp input tube paralleled
  119. valve preamp
  120. trio W-38 problems
  121. Cheap Russian 2.2uF 400V PIO Capacitor
  122. Otl Se
  123. My 2A3 is being left behind
  124. SE for Bass?
  125. Wal-Mart power supplies
  126. Nice deal!
  127. Look for high-voltage regulator projects
  128. Typical plate Voltage for el34
  129. Arc Sp8
  130. New Phono amp - developing stage
  131. fender princeton 5D2.. DONE!
  132. CCS Bang for the buck output or driver?
  133. pentode driver sanity check - before i build
  134. 6av6 mini pre didn t work
  135. CCS in the output stage
  136. Looking for Schematic using KC3 Preamp ?
  137. If you are looking to try balanced AC power....
  138. The best Coupling cap (under $20)
  139. What makes a speaker "tube-friendly"?
  140. Using 6L6 for 300b driver
  141. Heater reference
  142. 6G15 output transformer selection
  143. Morgan Jones and cascodes
  144. 6A3/6B4G/6S4S(2A3/2S4S) project
  145. blues junior complaints and 6G15 question
  146. Question about changing a hybrid
  147. High-end Class A valve amplifiers will be illegal in USA?
  148. transformerless supply
  149. "Quasi" ultralinear experiment - questions...
  150. Help on a LUXMAN MQ 3600
  151. Changing from 6X4 to EZ81
  152. Design questions, driver stage for SE.
  153. S5 K-12G Question
  154. Ideas for a tube that heavily distorts ?
  155. CCS current sink in the output of my 2 tube 6080 amp.
  156. What do you think about my design (based on IMPAMP)
  157. spearinol oil (in ASC caps)
  158. Larger chassis Hole Punches
  159. HV Diode Selection
  160. Need help form Germany
  161. Output Impedance
  162. How to connect Gridchoke?
  163. Microphone In Guitar amp Question
  164. Triode connecting a pentode?
  165. help on line pre-amp
  166. Edcor P-P Transformers
  167. chassis work in NYC area
  168. low THD guitar preamp
  169. Please help ID this rectifier:
  170. Power Supply Voltage For 5881/6L6 Amp
  171. Audio Electronic Supply AE-25DJH
  172. Trouble: Main transfo short?
  173. help with chassis layout
  174. "Preamp" with remote (long)
  175. 6BY5 High Voltage & High Current Choke Input Design P.S.
  176. x-10 d and x-can version 2/3 schematics
  177. Ugly, but versatile, new amp
  178. Capacitor advice needed for AVA PAS rebuild
  179. Mic pre transformers
  180. Gain of JE labs 300B?
  181. Troubleshooting.
  182. new to the forum pre-amp
  183. Preamp output delay
  184. Super Triode Connection Amplifier Build with 6BM8 and 6AK5
  185. 1st project hum or buzz
  186. Impedans of trafo for EL504 inSE
  187. Can I use 2C39-B to sound
  188. usage of line out trans.
  189. eagle with tubes ?
  190. Rlim in GZ33 datasheet?
  191. LT1085 Current Regulation for DHT filaments
  192. Help Fixing Bias
  193. MC phono amp
  194. 10M45 Mu-Stage Idea?
  195. Hickok 6000A with 6C33 & 13E1...
  196. Isco 494
  197. looking for spice model of 6HA5 or similar tubes
  198. 6SL7 to 6SN7 substitution in power amp?
  199. Adding Subwoofer output to Aikido preamp circuit
  200. A request for PP 6c33c Schematics
  201. Thumping from left speaker when volume is low
  202. Crosstalk in twintriodes?
  203. Example Schematics?
  204. how to choose a rectifier tube? (specifically octals)
  205. Rather odd valve socket - anyone have any ideas?
  206. PS for GG - look for better channel separation
  207. help! T16 OTL schematic
  208. Bench PSU for tubes
  209. Tube Bogen J330 PA amp
  210. FM Stereo Tuner Tube Schematic ?
  211. Conn organ conversion to amp
  212. Smoking Transformer
  213. Questions on 1:1:1 driver transformer
  214. Pentode vrs Mosfet “MU-Stage”
  215. Transformer center tap connections
  216. dumb question :P KT88...
  217. Tube rectifier & regulator (modified)
  218. Some advice on this power supply
  219. Looking for Amperex C11550/1 data.
  220. Inserting tubes into Express PCB
  221. What do you think of this? (211 A2 SE)
  222. Help w/ diyAudio CCS implementation
  223. First DIY Amp Project
  224. HELP with PHONO and MIC preamps.
  225. CLC vs LCLC: is there any advantages other...
  226. Problem with old Heathkit
  227. Does anyone interested tube rectifier & regulator PCB ?
  228. Velleman K4040 conversion from EL34's to KT88's
  229. finished my PCC88 preamp
  230. Max 300B SE output possible with James 6123HS ?
  231. Who's right re bias adjustment versus plate voltage
  232. voltage current regulator
  233. Yarland 34 ciii amp
  234. CCS/5842/300B ground schematic.
  235. tube sockets
  236. PX25
  237. Research on tubes and circuits simple circuits
  238. using only 1/2 of a dual triode
  239. Some HMMM on my SRPP
  240. Grid Stopper
  241. diy tube amp problem
  242. The Red Light District - another PP EL84 amp
  243. Balanced 300B output for headphones or loudspeakers?
  244. 5692, the best?
  245. Power transformer quality differences
  246. Is it possible to use regulated DC for a rectifier tube?
  247. Transformer Secondary Power
  248. Phono preamp
  249. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  250. Physically small rectifier tube with 5V heaters

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