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  1. Compactron Driver Dynaco MarkIII PCB Design.
  2. Paralelling pentodes ?
  3. KT120 Single Ended Ultralinear
  4. Does a PCL805 glow red at its maximum rating?
  5. V1 Noise Reduction Choices
  6. full pentode ppp
  7. Input transformer question
  8. Is this Tesla ECC803S real or fake?
  9. Michaelson and Austin TVA-1
  10. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  11. 6EB8\6GN8 P-P Output 2*12w Class-B
  12. B+ regulator for KT88 amplifier
  13. Help figuring out wind/hiss
  14. 12A07 low voltage preamp
  15. Buying guideline for 6c33c
  16. New 211/VT4c shootout
  17. GM70 Output transformer
  18. OTL 2013
  19. Octal Preamp Triode Thoughts (IDHT's)
  20. Wrong tube and pin wiring
  21. New Production Tube If Transformers from Germany
  22. Vishay TX2575 resistor placement
  23. Direct connected madness
  24. RH84 build & quite a few questions...
  25. Tube preamp kits
  26. Capacitor query L1 audio innovation pre-amp
  27. Someone Told Me This Wouldn't Work?
  28. How to "do" a FM Multipath Monitor
  29. EF86 pins 2 & 7
  30. Welborne 300B DRD amp
  31. My First Tube Project: 6N16B
  32. Triode mod with G2, G3 connect to anode
  33. Valve mic cable diy
  34. Toroidal transformer is bad
  35. Coupling caps suggestions
  36. EABC80 and the double diode triode?
  37. Frequent Question -Golden Tube Audio 300B monos schematic??
  38. Transformer Terminal Designators
  39. Slew rate limiting in output stage
  40. Sonic Frontiers Line 2 - no line level output
  41. KT88 Ultralinear?
  42. Help with 12AT7 CCDA - EL34 SE Amp Design?
  43. THE FINAL AMP
  44. need 6SN7/6H8C reccom. for amp
  45. 211 parallel amp (made in Iran)
  46. Changing to twisted pair heater from one side grounded
  47. Choke input supply. Cap question.
  48. tube rectifier 6AX4GT
  49. RS1003 triode mode Spice models
  50. Firestone 6V6 Monoblock Problems
  51. Lundahl Output transformers?
  52. GMI-6 / GMI-6-1
  53. New power transformer for Millett's DCPP amp,now available at EDCOR
  54. Tuned Circuit?
  55. remote lead for tubes
  56. Building a Stereo EL84 auto bias PP tube amp
  57. Tube conversion of differential to single ended signal
  58. A transconductance tube amplifier
  59. Unknown Tube
  60. 12vdc to 150vac
  61. When is a tube too weak?
  62. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  63. Biasing aBerning EA-230
  64. Aikido Noob - Please Help!
  65. Wiring Capacitors in Series
  66. Dynaco ST35 power transformer
  67. sunn 200s diagnosis?
  68. Individual Coupling Caps
  69. Valve Pre > Intergrated amp
  70. Whats the difference RH84 or Mullard 3-3?
  71. Ultra-Linear SE EL84?
  72. Self balancing pp using ccs question
  73. Help: How To Select Schottky Rectifer Diode
  74. 6550 plate resistance in triode mode? Calculate?
  75. making 6sj7 have same gain as 6sl7
  76. Thick Film resistors?
  77. Mounting position EL84
  78. Curve Tracer: Which One To Buy, What To Consider, Options ?
  79. 71A Tube Filament: AC or DC ?
  80. My Current Line + Phono Combo
  81. What is better than one audioromy M-828A FU29?
  82. Mazda tube
  83. Aikido selectable gain
  84. Preamp power supply
  85. Has anyone used CV9 tubes in a pp design
  86. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  87. BALANCED AUDIO VK 5 VK20
  88. Output transformer computation
  89. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  90. Input Attenuators
  91. new build SE to EL 508
  92. found this on kickstarter
  93. SE Output Transformer question
  94. Safety of DC-coupled inputs
  95. Found some old tubes.
  96. Presence control
  97. lafayette pa 622 -> Guitar amp conversion
  98. Fixing an amp head - bad tubes?
  99. EL84 what factory produced it?
  100. Trio Corp 300b fake?
  101. Cheap triode class A 3Watt + assembled/kit you know ?
  102. Elekit tu 879s upgrades
  103. EZ80 Choke Input Max Capacitance
  104. Correct measurement of filament voltage.
  105. Who put the "half" in the Koren SPICE equation
  106. 5Y3 tube rectifier
  107. Triode or ultraliner connected ?
  108. What is the "Tube Sound"?
  109. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  110. Which KT88 ?
  111. Why make a tube amp that sounds like a SS amp?
  112. Mark VI power Supply
  113. audioromy fu29 - not working, repair or scrap?
  114. Valve amp questions for someone new to them.
  115. Driving Parallel Tubes
  116. Matching quad set
  117. Anyone listen a 46 in UL mode ?
  118. McIntosh MC30 vs. Fisher 80-AZ
  119. Voltage Divider at input to Power Amp
  120. Checking EL84 with Eico 625
  121. Dynaclone ST70 6F2 Alternative
  122. Nobsound MS10D
  123. Need Help - Monoblock Power Amplifier EL 34
  124. Replace output transformers in Dynaco ST70
  125. 6P14P-EV in my Simple P-P
  126. Help finding a new tube headphone amp
  127. Cost of building from scratch
  128. Help with loadlines in p.s.e.
  129. Simplified pentode Loftin-White with plate-plate feedback
  130. Inductor Fed VR Tube
  131. Screen Grid Peak Voltage
  132. Unknown (Westrex?) AE285 KT66 cinema amplifier
  133. Has anyone dual-monoed a Stereo 70?
  134. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  135. Pentode G1 series resistance effects.
  136. MUZAK 975a 75watt, 50s
  137. Hybrid SS/Tube Balanced Mic Pre
  138. Adding a baland pot to cathodes on a cathode biased amp?
  139. Is the 8532W a substitute for 8532?
  140. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  141. Configuring 2A3 Driver for 2A3 PSE
  142. Integrated Tube Amp opinion
  143. Ultra-Linear vs. Pentode Longevity
  144. RCA PA amp SA752LO...
  145. Running preamp into acive speakers with cap input
  146. Putting Stock In Carver?
  147. Weak treble
  148. About GU50 PP in UL with separate G2 winding and supply
  149. tube tester comparison
  150. Volume control after the preamp stage or before ?
  151. COPLAND CTA 401 - upgrade of components ?
  152. 2 amp simulation/dummy load for transformer
  153. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  154. 809 Triodes
  155. PSRR
  156. Looking for a schematic or link to a post
  157. Who makes a Williamson output transformer ?
  158. Help with an S5 K12-G Tube Amp
  159. Turing's new tube amps. Please give staff about.
  160. Life Expectancy of DHT's
  161. 6GB8 data sheet translation needed
  162. Full Wave Rectifiers: Center Tapped vs. Bridged
  163. Vectorscope?
  164. Apple macmini become to 6MD8 tube amp
  165. Potting Wax?
  166. How do I repair my Tube Amp?
  167. asr433 simple problem (i hope)
  168. Russian Tube Codes
  169. Help: Driver Stage Design
  170. PAS Power Transformer Capability
  171. 7A5 tube...a small marvel !!!
  172. phono preamp for the s5 electronics model 16ls amp
  173. Screen Stopper Blew
  174. Hickok 533 and 6dj8/6922
  175. OTL design opinion
  176. Pile of TEK scopes.........what do I keep?
  177. Inclusion of an oscilloscope on tester
  178. 6V6SE - Suggestions?
  179. Heretical Line Stage: BOM?
  180. Tube amp to drive 4 ohm headphones?
  181. Another TVA1 - KT88 power amplifier
  182. 845 parafeed
  183. datasheet 6P44C
  184. ecc85 tube buffer or line stage?
  185. Valvestate 8080 That's been dog Peed...
  186. pre war gibson eh125 schematic question
  187. "An elegant full function tube preamp mated to 1st rate SS power amp"
  188. How to select a good Hifi 12AX7 tube?
  189. LTP with CCS and negative PS
  190. Odd phase splitter
  191. Yet Another Hybrid Amplifier
  192. what Lundahl OPT for headphone 2A3 amp? (for HD800)
  193. Heater to Cathode voltage e88cc
  194. ASR-433
  195. Marantz 8B phase splitter
  196. Silvertone 1485 - Output Transformer advice
  197. Bob Latino ST120 Down
  198. SS phase splitters?
  199. Supply Filtering and why Capacitance Multipliers are NOT the Answer
  200. SE 6L6 to KT88
  201. HT power supply design
  202. Good tubes for concertina - 4P1L maybe?
  203. Powr supply question
  204. What is wrong with this Amplifier?
  205. Palmer DREI - Three SE Output Tubes Together?
  206. Heathkit TC-2 Checker and KT88s
  207. my Dummy Amp Contraption
  208. HF Oscillation Heat-Up Spk's Magnet!?
  209. Triode calculations
  210. Western Electric 131
  211. Electrolytic vs. Film 2A3 Cathode Bypass?
  212. Sylvania JAN 6SN7WGTA, late 1970's
  213. TV7 tester problem with 6CB5A tube
  214. Stromberg-Carlson AP-55
  215. SHUGUANG 2A3
  216. Circuit breaker help.
  217. Recommend me a bookshelf speaker for 5W
  218. Monarch STA 100X weird?
  219. 1954 US Army "Sound Repeater" amplifier
  220. 6N7...this configuration work ?
  221. RIAA Active EQ
  222. Direct Coupled E-Linear Amp
  223. Double Triode Mu
  224. Music Angel kt88 new pcbs problem
  225. EL503 replacement?
  226. Reducing gain in a SRPP circuit with ECC82?
  227. 12XX7 Triodes
  228. Output Tx just for interest
  229. Valab in Taiwan output transformers
  230. Impedance Question
  231. How to include a dual triode tube in a KiCAD schematic?
  232. 12U7 SPICE Model
  233. Phono Stage Woofer Bounce
  234. Problem with new L3-3 please help!
  235. Edcor output transformer...very nice !!!
  236. SE Hybrid Amp "The Lunatic one"
  237. Marantz 8b power transformer B+ down 30%
  238. Single or paralell trafo?
  239. CJ PV 5 Impedance?
  240. ECF80 driving EL84 PP
  241. Luhdahl LL1660S what current rating for D3a driver?
  242. what's that cap?
  243. SE EL84 Component placement Suggestion
  244. How to make a cheap 6N3 Buffer Amp even better?
  245. buying Tube Amps need advice/opinions
  246. Best driver and Power 6V6 By Officina
  247. dynaco pas3
  248. 5U4GB full-wave bridge, stumped
  249. Complete Module Driver and Power with DHT 6B4G
  250. HELP NEEDED for a 6CA4/EZ81 power supply

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