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  1. Which KT88 ?
  2. Why make a tube amp that sounds like a SS amp?
  3. Mark VI power Supply
  4. audioromy fu29 - not working, repair or scrap?
  5. Valve amp questions for someone new to them.
  6. Driving Parallel Tubes
  7. Matching quad set
  8. Anyone listen a 46 in UL mode ?
  9. McIntosh MC30 vs. Fisher 80-AZ
  10. Voltage Divider at input to Power Amp
  11. Checking EL84 with Eico 625
  12. Dynaclone ST70 6F2 Alternative
  13. Nobsound MS10D
  14. Need Help - Monoblock Power Amplifier EL 34
  15. Replace output transformers in Dynaco ST70
  16. 6P14P-EV in my Simple P-P
  17. Help finding a new tube headphone amp
  18. Cost of building from scratch
  19. Help with loadlines in p.s.e.
  20. Simplified pentode Loftin-White with plate-plate feedback
  21. Inductor Fed VR Tube
  22. Screen Grid Peak Voltage
  23. Unknown (Westrex?) AE285 KT66 cinema amplifier
  24. Has anyone dual-monoed a Stereo 70?
  25. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  26. Pentode G1 series resistance effects.
  27. MUZAK 975a 75watt, 50s
  28. Hybrid SS/Tube Balanced Mic Pre
  29. Adding a baland pot to cathodes on a cathode biased amp?
  30. Is the 8532W a substitute for 8532?
  31. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  32. Configuring 2A3 Driver for 2A3 PSE
  33. Integrated Tube Amp opinion
  34. Ultra-Linear vs. Pentode Longevity
  35. RCA PA amp SA752LO...
  36. Running preamp into acive speakers with cap input
  37. Putting Stock In Carver?
  38. Weak treble
  39. About GU50 PP in UL with separate G2 winding and supply
  40. tube tester comparison
  41. Volume control after the preamp stage or before ?
  42. COPLAND CTA 401 - upgrade of components ?
  43. 2 amp simulation/dummy load for transformer
  44. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  45. 809 Triodes
  46. PSRR
  47. Looking for a schematic or link to a post
  48. Who makes a Williamson output transformer ?
  49. Help with an S5 K12-G Tube Amp
  50. Turing's new tube amps. Please give staff about.
  51. Life Expectancy of DHT's
  52. 6GB8 data sheet translation needed
  53. Full Wave Rectifiers: Center Tapped vs. Bridged
  54. Vectorscope?
  55. Apple macmini become to 6MD8 tube amp
  56. Potting Wax?
  57. How do I repair my Tube Amp?
  58. asr433 simple problem (i hope)
  59. Russian Tube Codes
  60. Help: Driver Stage Design
  61. PAS Power Transformer Capability
  62. 7A5 tube...a small marvel !!!
  63. phono preamp for the s5 electronics model 16ls amp
  64. Screen Stopper Blew
  65. Hickok 533 and 6dj8/6922
  66. OTL design opinion
  67. Pile of TEK scopes.........what do I keep?
  68. Inclusion of an oscilloscope on tester
  69. 6V6SE - Suggestions?
  70. Heretical Line Stage: BOM?
  71. Tube amp to drive 4 ohm headphones?
  72. Another TVA1 - KT88 power amplifier
  73. 845 parafeed
  74. datasheet 6P44C
  75. ecc85 tube buffer or line stage?
  76. Valvestate 8080 That's been dog Peed...
  77. pre war gibson eh125 schematic question
  78. "An elegant full function tube preamp mated to 1st rate SS power amp"
  79. How to select a good Hifi 12AX7 tube?
  80. LTP with CCS and negative PS
  81. Odd phase splitter
  82. Yet Another Hybrid Amplifier
  83. what Lundahl OPT for headphone 2A3 amp? (for HD800)
  84. Heater to Cathode voltage e88cc
  85. ASR-433
  86. Marantz 8B phase splitter
  87. Silvertone 1485 - Output Transformer advice
  88. Bob Latino ST120 Down
  89. SS phase splitters?
  90. Supply Filtering and why Capacitance Multipliers are NOT the Answer
  91. SE 6L6 to KT88
  92. HT power supply design
  93. Good tubes for concertina - 4P1L maybe?
  94. Powr supply question
  95. What is wrong with this Amplifier?
  96. Palmer DREI - Three SE Output Tubes Together?
  97. Heathkit TC-2 Checker and KT88s
  98. my Dummy Amp Contraption
  99. HF Oscillation Heat-Up Spk's Magnet!?
  100. Triode calculations
  101. Western Electric 131
  102. Electrolytic vs. Film 2A3 Cathode Bypass?
  103. Sylvania JAN 6SN7WGTA, late 1970's
  104. TV7 tester problem with 6CB5A tube
  105. Stromberg-Carlson AP-55
  106. SHUGUANG 2A3
  107. Circuit breaker help.
  108. Recommend me a bookshelf speaker for 5W
  109. Monarch STA 100X weird?
  110. 1954 US Army "Sound Repeater" amplifier
  111. 6N7...this configuration work ?
  112. RIAA Active EQ
  113. Direct Coupled E-Linear Amp
  114. Double Triode Mu
  115. Music Angel kt88 new pcbs problem
  116. EL503 replacement?
  117. Reducing gain in a SRPP circuit with ECC82?
  118. 12XX7 Triodes
  119. Output Tx just for interest
  120. Valab in Taiwan output transformers
  121. Impedance Question
  122. How to include a dual triode tube in a KiCAD schematic?
  123. 12U7 SPICE Model
  124. Phono Stage Woofer Bounce
  125. Problem with new L3-3 please help!
  126. Edcor output transformer...very nice !!!
  127. SE Hybrid Amp "The Lunatic one"
  128. Marantz 8b power transformer B+ down 30%
  129. Single or paralell trafo?
  130. CJ PV 5 Impedance?
  131. ECF80 driving EL84 PP
  132. Luhdahl LL1660S what current rating for D3a driver?
  133. what's that cap?
  134. SE EL84 Component placement Suggestion
  135. How to make a cheap 6N3 Buffer Amp even better?
  136. buying Tube Amps need advice/opinions
  137. Best driver and Power 6V6 By Officina
  138. dynaco pas3
  139. 5U4GB full-wave bridge, stumped
  140. Complete Module Driver and Power with DHT 6B4G
  141. HELP NEEDED for a 6CA4/EZ81 power supply
  142. OT for 2A3 PSE w/Parafeed
  143. More Dynaco Mark VI Questions
  144. curious feedback in circuit of Pioneer SM-Q300 receiver
  145. Hytron 2E25 - Other forgotten and marvelous tube !
  146. need tube upgrade advice please sir
  147. buyer beware
  148. Analog tube for DAC & Power supply with valve EZ_80
  149. JJ 5y3S pin 1??
  150. My first Sansui AU-111 Rebuild
  151. Capacitor-induced distortion
  152. Elevating Heater Voltage with multiple Transformer Heater Secondaries
  153. Common Cathode as DAC output
  154. Pre-Amp with russian tubes 1j24b
  155. How to calculate, the output impedance of a tube with grounded grid
  156. How To Draw Load Line With Output Transformer ?
  157. Inter electrode capacitance.
  158. My amp is an oscillator !
  159. TESLA PL509
  160. What value for Va ?
  161. Help selecting an input transformer ?
  162. Should same valves grid voltage vary much ?
  163. Driver options for 300B-XLS (4P1L-IS-4P1L-IS)
  164. Restoring a Scott 299-B
  165. Latest project, 80 watt valve amplifier
  166. PP Amp Doubling Output Power
  167. Setting up a Wilson current mirror as a differential load
  168. interested in tube amps
  169. Baldwin 45P amp project
  170. DIYGene's Jadis JP-200 Preamp Kit
  171. Need design/schematic for 6H30P driven 6C33C SET
  172. Substitute 6AQ8 for my 6CG7's
  173. 6bq5 tubes in a Heathkit AA-151
  174. Marantz 8b restoration: colour code, prints, schematics
  175. Show me your screen drive circuits
  176. Potting Compounds
  177. Chokes in the ground "plane"
  178. OTL idea
  179. Balance control tip for newbee's
  180. Ebay win - is this any good?
  181. 6sn7 pse amp for altec lansing 604E
  182. "Cockeyed Bridge" with damper diode?
  183. Mac 2100 Hybrid
  184. Single-Stage Hybrid Cascode Power Amp
  185. New to Tube amps, heathkit question
  186. 6AS7 OTL PL build
  187. On Bootstrapping diodes for UL G2 MOSFET
  188. Chasing Aikido "hum"
  189. valve monobloc designs
  190. 7A5 is a good driver for the 300B ?
  191. Parallel Push Pull 6V6 design
  192. Black cat caps?
  193. Soundstage
  194. Brains & Brawn CF : where's the catch ?
  195. ISO-TANGO to quit
  196. Shifting reflective loads using secondary taps?
  197. VTL -- 20 6550's a side and their xfmrs
  198. "Diamond" tube preamp with 12au7
  199. Wich factory made this tube ?
  200. Bootstrapped Cathode Coupled Amplifier
  201. OTL 6AS7
  202. Diode performance testing
  203. Monacor SA-10
  204. Volume Control Hum
  205. Stromberg-Carlson AP-50
  206. 5 wire and 3 wire output transformer change ?
  207. Yaqin mc 10L
  208. Can OTL Ciclotron amp use solid state regulated PS?
  209. Cross-channel overtalk with strange effects
  210. Why 6.3V?
  211. KT88 Williamson Design Questions
  212. Winding a center-tap secondary
  213. HV delay switch
  214. McIntosh MC-30...Balanced Input Feasible?
  215. Designing line driver / pre-amp
  216. Bucking and boosting a tube power transformer
  217. 33A-158M
  218. All DHT integrated amp
  219. 6N1P
  220. basic query - Pete Millett 807 board.
  221. Tube Tester with undocumented tubes
  222. "Fritz" the Boston/RI tube guy - ANYONE know what became of him??
  223. EI yugoslavia gone forever.
  224. Quicksilver 8417 Design - Stay with it or modify?
  225. Looking for some advice on odd preamp noise issue
  226. Tubes in an opamp feedback loop ?
  227. Jensen P-P Cathode Follower
  228. Cathode follower rigorous definition.
  229. Little Bear P3 ?!?! opinions ?
  230. NOS GU-81
  231. OPT endbell color!
  232. Music Angel kt88 with unbalanced output.. help me!
  233. Heater Supply Center Tap
  234. SCA-35 Pot noise
  235. Conrad Johnson MV 55
  236. Comments on 6C33C-B ARG OTL
  237. Construction tips for high voltage amps.
  238. 6L6 bias
  239. came across Mingda Tube king mono blocks
  240. a lot of noise
  241. El84 pp Amp problem
  242. Power on filament current surge question
  243. Its likely a repost but W/e
  244. Scored some 8236's....
  245. What causes valve to glow red inside ?
  246. Tubes and radioisotope decay
  247. PSUDII Question
  248. DIY Bias Buddy
  249. Recommend me a high power OPT
  250. Design Shorting Tubes?

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