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  1. All DHT headphone amp with 4P1L & 307A
  2. cary audio rocket 88 tube amp
  3. Compactron Driver Dynaco MarkIII PCB Design.
  4. Paralelling pentodes ?
  5. KT120 Single Ended Ultralinear
  6. Does a PCL805 glow red at its maximum rating?
  7. V1 Noise Reduction Choices
  8. full pentode ppp
  9. Input transformer question
  10. Is this Tesla ECC803S real or fake?
  11. Michaelson and Austin TVA-1
  12. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  13. 6EB8\6GN8 P-P Output 2*12w Class-B
  14. B+ regulator for KT88 amplifier
  15. Help figuring out wind/hiss
  16. 12A07 low voltage preamp
  17. Buying guideline for 6c33c
  18. New 211/VT4c shootout
  19. GM70 Output transformer
  20. OTL 2013
  21. Octal Preamp Triode Thoughts (IDHT's)
  22. Wrong tube and pin wiring
  23. New Production Tube If Transformers from Germany
  24. Vishay TX2575 resistor placement
  25. Direct connected madness
  26. RH84 build & quite a few questions...
  27. Tube preamp kits
  28. Capacitor query L1 audio innovation pre-amp
  29. Someone Told Me This Wouldn't Work?
  30. How to "do" a FM Multipath Monitor
  31. EF86 pins 2 & 7
  32. Welborne 300B DRD amp
  33. My First Tube Project: 6N16B
  34. Triode mod with G2, G3 connect to anode
  35. Valve mic cable diy
  36. Toroidal transformer is bad
  37. Coupling caps suggestions
  38. EABC80 and the double diode triode?
  39. Frequent Question -Golden Tube Audio 300B monos schematic??
  40. Transformer Terminal Designators
  41. Slew rate limiting in output stage
  42. Sonic Frontiers Line 2 - no line level output
  43. KT88 Ultralinear?
  44. Help with 12AT7 CCDA - EL34 SE Amp Design?
  45. THE FINAL AMP
  46. need 6SN7/6H8C reccom. for amp
  47. 211 parallel amp (made in Iran)
  48. Changing to twisted pair heater from one side grounded
  49. Choke input supply. Cap question.
  50. tube rectifier 6AX4GT
  51. RS1003 triode mode Spice models
  52. Firestone 6V6 Monoblock Problems
  53. Lundahl Output transformers?
  54. GMI-6 / GMI-6-1
  55. New power transformer for Millett's DCPP amp,now available at EDCOR
  56. Tuned Circuit?
  57. remote lead for tubes
  58. Building a Stereo EL84 auto bias PP tube amp
  59. Tube conversion of differential to single ended signal
  60. A transconductance tube amplifier
  61. Unknown Tube
  62. 12vdc to 150vac
  63. When is a tube too weak?
  64. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  65. Biasing aBerning EA-230
  66. Aikido Noob - Please Help!
  67. Wiring Capacitors in Series
  68. Dynaco ST35 power transformer
  69. sunn 200s diagnosis?
  70. Individual Coupling Caps
  71. Valve Pre > Intergrated amp
  72. Whats the difference RH84 or Mullard 3-3?
  73. Ultra-Linear SE EL84?
  74. Self balancing pp using ccs question
  75. Help: How To Select Schottky Rectifer Diode
  76. 6550 plate resistance in triode mode? Calculate?
  77. making 6sj7 have same gain as 6sl7
  78. Thick Film resistors?
  79. Mounting position EL84
  80. Curve Tracer: Which One To Buy, What To Consider, Options ?
  81. 71A Tube Filament: AC or DC ?
  82. My Current Line + Phono Combo
  83. What is better than one audioromy M-828A FU29?
  84. Mazda tube
  85. Aikido selectable gain
  86. Preamp power supply
  87. Has anyone used CV9 tubes in a pp design
  88. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  89. BALANCED AUDIO VK 5 VK20
  90. Output transformer computation
  91. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  92. Input Attenuators
  93. new build SE to EL 508
  94. found this on kickstarter
  95. SE Output Transformer question
  96. Safety of DC-coupled inputs
  97. Found some old tubes.
  98. Presence control
  99. lafayette pa 622 -> Guitar amp conversion
  100. Fixing an amp head - bad tubes?
  101. EL84 what factory produced it?
  102. Trio Corp 300b fake?
  103. Cheap triode class A 3Watt + assembled/kit you know ?
  104. Elekit tu 879s upgrades
  105. EZ80 Choke Input Max Capacitance
  106. Correct measurement of filament voltage.
  107. Who put the "half" in the Koren SPICE equation
  108. 5Y3 tube rectifier
  109. Triode or ultraliner connected ?
  110. What is the "Tube Sound"?
  111. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  112. Which KT88 ?
  113. Why make a tube amp that sounds like a SS amp?
  114. Mark VI power Supply
  115. audioromy fu29 - not working, repair or scrap?
  116. Valve amp questions for someone new to them.
  117. Driving Parallel Tubes
  118. Matching quad set
  119. Anyone listen a 46 in UL mode ?
  120. McIntosh MC30 vs. Fisher 80-AZ
  121. Voltage Divider at input to Power Amp
  122. Checking EL84 with Eico 625
  123. Dynaclone ST70 6F2 Alternative
  124. Nobsound MS10D
  125. Need Help - Monoblock Power Amplifier EL 34
  126. Replace output transformers in Dynaco ST70
  127. 6P14P-EV in my Simple P-P
  128. Help finding a new tube headphone amp
  129. Cost of building from scratch
  130. Help with loadlines in p.s.e.
  131. Simplified pentode Loftin-White with plate-plate feedback
  132. Inductor Fed VR Tube
  133. Screen Grid Peak Voltage
  134. Unknown (Westrex?) AE285 KT66 cinema amplifier
  135. Has anyone dual-monoed a Stereo 70?
  136. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  137. Pentode G1 series resistance effects.
  138. MUZAK 975a 75watt, 50s
  139. Hybrid SS/Tube Balanced Mic Pre
  140. Adding a baland pot to cathodes on a cathode biased amp?
  141. Is the 8532W a substitute for 8532?
  142. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  143. Configuring 2A3 Driver for 2A3 PSE
  144. Integrated Tube Amp opinion
  145. Ultra-Linear vs. Pentode Longevity
  146. RCA PA amp SA752LO...
  147. Running preamp into acive speakers with cap input
  148. Putting Stock In Carver?
  149. Weak treble
  150. About GU50 PP in UL with separate G2 winding and supply
  151. tube tester comparison
  152. Volume control after the preamp stage or before ?
  153. COPLAND CTA 401 - upgrade of components ?
  154. 2 amp simulation/dummy load for transformer
  155. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  156. 809 Triodes
  157. PSRR
  158. Looking for a schematic or link to a post
  159. Who makes a Williamson output transformer ?
  160. Help with an S5 K12-G Tube Amp
  161. Turing's new tube amps. Please give staff about.
  162. Life Expectancy of DHT's
  163. 6GB8 data sheet translation needed
  164. Full Wave Rectifiers: Center Tapped vs. Bridged
  165. Vectorscope?
  166. Apple macmini become to 6MD8 tube amp
  167. Potting Wax?
  168. How do I repair my Tube Amp?
  169. asr433 simple problem (i hope)
  170. Russian Tube Codes
  171. Help: Driver Stage Design
  172. PAS Power Transformer Capability
  173. 7A5 tube...a small marvel !!!
  174. phono preamp for the s5 electronics model 16ls amp
  175. Screen Stopper Blew
  176. Hickok 533 and 6dj8/6922
  177. OTL design opinion
  178. Pile of TEK scopes.........what do I keep?
  179. Inclusion of an oscilloscope on tester
  180. 6V6SE - Suggestions?
  181. Heretical Line Stage: BOM?
  182. Tube amp to drive 4 ohm headphones?
  183. Another TVA1 - KT88 power amplifier
  184. 845 parafeed
  185. datasheet 6P44C
  186. ecc85 tube buffer or line stage?
  187. Valvestate 8080 That's been dog Peed...
  188. pre war gibson eh125 schematic question
  189. "An elegant full function tube preamp mated to 1st rate SS power amp"
  190. How to select a good Hifi 12AX7 tube?
  191. LTP with CCS and negative PS
  192. Odd phase splitter
  193. Yet Another Hybrid Amplifier
  194. what Lundahl OPT for headphone 2A3 amp? (for HD800)
  195. Heater to Cathode voltage e88cc
  196. ASR-433
  197. Marantz 8B phase splitter
  198. Silvertone 1485 - Output Transformer advice
  199. Bob Latino ST120 Down
  200. SS phase splitters?
  201. Supply Filtering and why Capacitance Multipliers are NOT the Answer
  202. SE 6L6 to KT88
  203. HT power supply design
  204. Good tubes for concertina - 4P1L maybe?
  205. Powr supply question
  206. What is wrong with this Amplifier?
  207. Palmer DREI - Three SE Output Tubes Together?
  208. Heathkit TC-2 Checker and KT88s
  209. my Dummy Amp Contraption
  210. HF Oscillation Heat-Up Spk's Magnet!?
  211. Triode calculations
  212. Western Electric 131
  213. Electrolytic vs. Film 2A3 Cathode Bypass?
  214. Sylvania JAN 6SN7WGTA, late 1970's
  215. TV7 tester problem with 6CB5A tube
  216. Stromberg-Carlson AP-55
  217. SHUGUANG 2A3
  218. Circuit breaker help.
  219. Recommend me a bookshelf speaker for 5W
  220. Monarch STA 100X weird?
  221. 1954 US Army "Sound Repeater" amplifier
  222. 6N7...this configuration work ?
  223. RIAA Active EQ
  224. Direct Coupled E-Linear Amp
  225. Double Triode Mu
  226. Music Angel kt88 new pcbs problem
  227. EL503 replacement?
  228. Reducing gain in a SRPP circuit with ECC82?
  229. 12XX7 Triodes
  230. Output Tx just for interest
  231. Valab in Taiwan output transformers
  232. Impedance Question
  233. How to include a dual triode tube in a KiCAD schematic?
  234. 12U7 SPICE Model
  235. Phono Stage Woofer Bounce
  236. Problem with new L3-3 please help!
  237. Edcor output transformer...very nice !!!
  238. SE Hybrid Amp "The Lunatic one"
  239. Marantz 8b power transformer B+ down 30%
  240. Single or paralell trafo?
  241. CJ PV 5 Impedance?
  242. ECF80 driving EL84 PP
  243. Luhdahl LL1660S what current rating for D3a driver?
  244. what's that cap?
  245. SE EL84 Component placement Suggestion
  246. How to make a cheap 6N3 Buffer Amp even better?
  247. buying Tube Amps need advice/opinions
  248. Best driver and Power 6V6 By Officina
  249. dynaco pas3
  250. 5U4GB full-wave bridge, stumped

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