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  1. Frequent Question -Golden Tube Audio 300B monos schematic??
  2. Transformer Terminal Designators
  3. Slew rate limiting in output stage
  4. Sonic Frontiers Line 2 - no line level output
  5. KT88 Ultralinear?
  6. Help with 12AT7 CCDA - EL34 SE Amp Design?
  7. THE FINAL AMP
  8. need 6SN7/6H8C reccom. for amp
  9. 211 parallel amp (made in Iran)
  10. Changing to twisted pair heater from one side grounded
  11. Choke input supply. Cap question.
  12. tube rectifier 6AX4GT
  13. RS1003 triode mode Spice models
  14. Firestone 6V6 Monoblock Problems
  15. Lundahl Output transformers?
  16. GMI-6 / GMI-6-1
  17. New power transformer for Millett's DCPP amp,now available at EDCOR
  18. Tuned Circuit?
  19. remote lead for tubes
  20. Building a Stereo EL84 auto bias PP tube amp
  21. Tube conversion of differential to single ended signal
  22. A transconductance tube amplifier
  23. Unknown Tube
  24. 12vdc to 150vac
  25. When is a tube too weak?
  26. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  27. Biasing aBerning EA-230
  28. Aikido Noob - Please Help!
  29. Wiring Capacitors in Series
  30. Dynaco ST35 power transformer
  31. sunn 200s diagnosis?
  32. Individual Coupling Caps
  33. Valve Pre > Intergrated amp
  34. Whats the difference RH84 or Mullard 3-3?
  35. Ultra-Linear SE EL84?
  36. Self balancing pp using ccs question
  37. Help: How To Select Schottky Rectifer Diode
  38. 6550 plate resistance in triode mode? Calculate?
  39. making 6sj7 have same gain as 6sl7
  40. Thick Film resistors?
  41. Mounting position EL84
  42. Curve Tracer: Which One To Buy, What To Consider, Options ?
  43. 71A Tube Filament: AC or DC ?
  44. My Current Line + Phono Combo
  45. What is better than one audioromy M-828A FU29?
  46. Mazda tube
  47. Aikido selectable gain
  48. Preamp power supply
  49. Has anyone used CV9 tubes in a pp design
  50. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  51. BALANCED AUDIO VK 5 VK20
  52. Output transformer computation
  53. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  54. Input Attenuators
  55. new build SE to EL 508
  56. found this on kickstarter
  57. SE Output Transformer question
  58. Safety of DC-coupled inputs
  59. Found some old tubes.
  60. Presence control
  61. lafayette pa 622 -> Guitar amp conversion
  62. Fixing an amp head - bad tubes?
  63. EL84 what factory produced it?
  64. Trio Corp 300b fake?
  65. Cheap triode class A 3Watt + assembled/kit you know ?
  66. Elekit tu 879s upgrades
  67. EZ80 Choke Input Max Capacitance
  68. Correct measurement of filament voltage.
  69. Who put the "half" in the Koren SPICE equation
  70. 5Y3 tube rectifier
  71. Triode or ultraliner connected ?
  72. What is the "Tube Sound"?
  73. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  74. Which KT88 ?
  75. Why make a tube amp that sounds like a SS amp?
  76. Mark VI power Supply
  77. audioromy fu29 - not working, repair or scrap?
  78. Valve amp questions for someone new to them.
  79. Driving Parallel Tubes
  80. Matching quad set
  81. Anyone listen a 46 in UL mode ?
  82. McIntosh MC30 vs. Fisher 80-AZ
  83. Voltage Divider at input to Power Amp
  84. Checking EL84 with Eico 625
  85. Dynaclone ST70 6F2 Alternative
  86. Nobsound MS10D
  87. Need Help - Monoblock Power Amplifier EL 34
  88. Replace output transformers in Dynaco ST70
  89. 6P14P-EV in my Simple P-P
  90. Help finding a new tube headphone amp
  91. Cost of building from scratch
  92. Help with loadlines in p.s.e.
  93. Simplified pentode Loftin-White with plate-plate feedback
  94. Inductor Fed VR Tube
  95. Screen Grid Peak Voltage
  96. Unknown (Westrex?) AE285 KT66 cinema amplifier
  97. Has anyone dual-monoed a Stereo 70?
  98. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  99. Pentode G1 series resistance effects.
  100. MUZAK 975a 75watt, 50s
  101. Hybrid SS/Tube Balanced Mic Pre
  102. Adding a baland pot to cathodes on a cathode biased amp?
  103. Is the 8532W a substitute for 8532?
  104. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  105. Configuring 2A3 Driver for 2A3 PSE
  106. Integrated Tube Amp opinion
  107. Ultra-Linear vs. Pentode Longevity
  108. RCA PA amp SA752LO...
  109. Running preamp into acive speakers with cap input
  110. Putting Stock In Carver?
  111. Weak treble
  112. About GU50 PP in UL with separate G2 winding and supply
  113. tube tester comparison
  114. Volume control after the preamp stage or before ?
  115. COPLAND CTA 401 - upgrade of components ?
  116. 2 amp simulation/dummy load for transformer
  117. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  118. 809 Triodes
  119. PSRR
  120. Looking for a schematic or link to a post
  121. Who makes a Williamson output transformer ?
  122. Help with an S5 K12-G Tube Amp
  123. Turing's new tube amps. Please give staff about.
  124. Life Expectancy of DHT's
  125. 6GB8 data sheet translation needed
  126. Full Wave Rectifiers: Center Tapped vs. Bridged
  127. Vectorscope?
  128. Apple macmini become to 6MD8 tube amp
  129. Potting Wax?
  130. How do I repair my Tube Amp?
  131. asr433 simple problem (i hope)
  132. Russian Tube Codes
  133. Help: Driver Stage Design
  134. PAS Power Transformer Capability
  135. 7A5 tube...a small marvel !!!
  136. phono preamp for the s5 electronics model 16ls amp
  137. Screen Stopper Blew
  138. Hickok 533 and 6dj8/6922
  139. OTL design opinion
  140. Pile of TEK scopes.........what do I keep?
  141. Inclusion of an oscilloscope on tester
  142. 6V6SE - Suggestions?
  143. Heretical Line Stage: BOM?
  144. Tube amp to drive 4 ohm headphones?
  145. Another TVA1 - KT88 power amplifier
  146. 845 parafeed
  147. datasheet 6P44C
  148. ecc85 tube buffer or line stage?
  149. Valvestate 8080 That's been dog Peed...
  150. pre war gibson eh125 schematic question
  151. "An elegant full function tube preamp mated to 1st rate SS power amp"
  152. How to select a good Hifi 12AX7 tube?
  153. LTP with CCS and negative PS
  154. Odd phase splitter
  155. Yet Another Hybrid Amplifier
  156. what Lundahl OPT for headphone 2A3 amp? (for HD800)
  157. Heater to Cathode voltage e88cc
  158. ASR-433
  159. Marantz 8B phase splitter
  160. Silvertone 1485 - Output Transformer advice
  161. Bob Latino ST120 Down
  162. SS phase splitters?
  163. Supply Filtering and why Capacitance Multipliers are NOT the Answer
  164. SE 6L6 to KT88
  165. HT power supply design
  166. Good tubes for concertina - 4P1L maybe?
  167. Powr supply question
  168. What is wrong with this Amplifier?
  169. Palmer DREI - Three SE Output Tubes Together?
  170. Heathkit TC-2 Checker and KT88s
  171. my Dummy Amp Contraption
  172. HF Oscillation Heat-Up Spk's Magnet!?
  173. Triode calculations
  174. Western Electric 131
  175. Electrolytic vs. Film 2A3 Cathode Bypass?
  176. Sylvania JAN 6SN7WGTA, late 1970's
  177. TV7 tester problem with 6CB5A tube
  178. Stromberg-Carlson AP-55
  179. SHUGUANG 2A3
  180. Circuit breaker help.
  181. Recommend me a bookshelf speaker for 5W
  182. Monarch STA 100X weird?
  183. 1954 US Army "Sound Repeater" amplifier
  184. 6N7...this configuration work ?
  185. RIAA Active EQ
  186. Direct Coupled E-Linear Amp
  187. Double Triode Mu
  188. Music Angel kt88 new pcbs problem
  189. EL503 replacement?
  190. Reducing gain in a SRPP circuit with ECC82?
  191. 12XX7 Triodes
  192. Output Tx just for interest
  193. Valab in Taiwan output transformers
  194. Impedance Question
  195. How to include a dual triode tube in a KiCAD schematic?
  196. 12U7 SPICE Model
  197. Phono Stage Woofer Bounce
  198. Problem with new L3-3 please help!
  199. Edcor output transformer...very nice !!!
  200. SE Hybrid Amp "The Lunatic one"
  201. Marantz 8b power transformer B+ down 30%
  202. Single or paralell trafo?
  203. CJ PV 5 Impedance?
  204. ECF80 driving EL84 PP
  205. Luhdahl LL1660S what current rating for D3a driver?
  206. what's that cap?
  207. SE EL84 Component placement Suggestion
  208. How to make a cheap 6N3 Buffer Amp even better?
  209. buying Tube Amps need advice/opinions
  210. Best driver and Power 6V6 By Officina
  211. dynaco pas3
  212. 5U4GB full-wave bridge, stumped
  213. Complete Module Driver and Power with DHT 6B4G
  214. HELP NEEDED for a 6CA4/EZ81 power supply
  215. OT for 2A3 PSE w/Parafeed
  216. More Dynaco Mark VI Questions
  217. curious feedback in circuit of Pioneer SM-Q300 receiver
  218. Hytron 2E25 - Other forgotten and marvelous tube !
  219. need tube upgrade advice please sir
  220. buyer beware
  221. Analog tube for DAC & Power supply with valve EZ_80
  222. JJ 5y3S pin 1??
  223. My first Sansui AU-111 Rebuild
  224. Capacitor-induced distortion
  225. Elevating Heater Voltage with multiple Transformer Heater Secondaries
  226. Common Cathode as DAC output
  227. Pre-Amp with russian tubes 1j24b
  228. How to calculate, the output impedance of a tube with grounded grid
  229. How To Draw Load Line With Output Transformer ?
  230. Inter electrode capacitance.
  231. My amp is an oscillator !
  232. TESLA PL509
  233. What value for Va ?
  234. Help selecting an input transformer ?
  235. Should same valves grid voltage vary much ?
  236. Driver options for 300B-XLS (4P1L-IS-4P1L-IS)
  237. Restoring a Scott 299-B
  238. Latest project, 80 watt valve amplifier
  239. PP Amp Doubling Output Power
  240. Setting up a Wilson current mirror as a differential load
  241. interested in tube amps
  242. Baldwin 45P amp project
  243. DIYGene's Jadis JP-200 Preamp Kit
  244. Need design/schematic for 6H30P driven 6C33C SET
  245. Substitute 6AQ8 for my 6CG7's
  246. 6bq5 tubes in a Heathkit AA-151
  247. Marantz 8b restoration: colour code, prints, schematics
  248. Show me your screen drive circuits
  249. Potting Compounds
  250. Chokes in the ground "plane"

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