Log in

View Full Version : Vacuum Tubes

Pages : 1 |  2 |  3 |  4 |  [5] 6 |  7 |  8 |  9 |  10 |  11 |  12 |  13 |  14 |  15 |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  40 | 
  1. FA: ORTOFON T-20 MK II MC STEP UP * SUPERB * NO RESERVE (0 replies)
  2. The Audio Designer's Tube Register (2 replies)
  3. what is causing this problem? (110 replies)
  4. FA:PAIR MATCHED TELEFUNKEN ECC803S (6 replies)
  5. Do milspec tubes *necessarily* sound better? (15 replies)
  6. All hail to the ultrafidelista for what they got right (8 replies)
  7. All hail to the ultrafidelista for what they got right (4 replies)
  8. SHOP CLEANOUT-PRIDE 100 WATT linear CB/Ham amp-(4) vintage tube CBradios-(2) old tube PA system amps for guitar projects-tube radios- testequipment-rare items-$10-25 each (1 replies)
  9. Vintage Mike and Speaker connectors (3 replies)
  10. ETF'08 (2 replies)
  11. Nikki Seeking Men in California (0 replies)
  12. SHOP CLEANOUT-PRIDE 100 WATT linear CB/Ham amp-(4) vintage tube CBradios-(2) old tube PA system amps for guitar projects-tube radios- testequipment-rare items-$10-25 each (0 replies)
  13. 6SN7=6CG7?=?6FQ7 (39 replies)
  14. Tube DACs?? (95 replies)
  15. wtd general radio 942a output transformer (0 replies)
  16. Re: Building the Superior Tube Amplifier (10 replies)
  17. Demco Star CB radio power cord wiring (3 replies)
  18. Kaikki imee (0 replies)
  19. Re: Over 80,000 images of beautiful busty women (3 replies)
  20. Maas ROWE CARILLONS 500a schematic ? (2 replies)
  21. Shuguang not making 845 any more? (3 replies)
  22. Cary Audio SLM-100 Power Transformer Hum (6 replies)
  23. Re: Terry's on his "Dead Nate" kick again. :-( (0 replies)
  24. mu follower distortion (73 replies)
  25. guenstiger strom,was ist billiger strom oder,guenstig stromund,stromanbieter strompreise,guenstige stromanbieter, (0 replies)
  26. Re: Terry's on his "Dead Nate" kick again. :-( (0 replies)
  27. Re: Terry's on his "Dead Nate" kick again. :-( (1 replies)
  28. what are these (4 replies)
  29. Just got a DEAD Mcintosh, Dangit!! (26 replies)
  30. ExpressPCB & UK Import Duty (22 replies)
  31. Hello - anyone there? (4 replies)
  32. Shut up, Poofie, you stupid donkey (3 replies)
  33. Audio Tubes for Sale (4 replies)
  34. Who is making all these R-core transformers? (4 replies)
  35. "Industrial Control Transformers" for HV supplies (2 replies)
  36. Eico HF-87 rebuild power supply caps? (5 replies)
  37. 2008 Orlando Antique Radio Show (0 replies)
  38. Hum Bucking pot (17 replies)
  39. patching in a stepped stereo three knob attenuator (0 replies)
  40. First rebuild - Eico HF-87 - where to find parts? (16 replies)
  41. Low Frequency Mains Noise (183 replies)
  42. FS: Large Lot of Tubes (Schwenksville, PA) (0 replies)
  43. Failings of ST70 well known for years (7 replies)
  44. FA: 500K POTENTIOMETERS (3 replies)
  45. Questions I Have (2 replies)
  46. A golden rectifier? (10 replies)
  47. HELP! bv-120h... correct biasing procedures (23 replies)
  48. WIMA MKS4 400V Polyester caps (63 replies)
  49. Can sanity be outlawed by trash? (15 replies)
  50. 7-pin EL84 (13 replies)
  51. Connecting a turntable to H.H. Scott LK-72 (help a newbie, please!) (7 replies)
  52. ATC speakers (0 replies)
  53. A Hyper Triode line stage amp. (48 replies)
  54. Differences between EL 84 and EL 34 ...? (10 replies)
  55. Enter the ANAMOD, any comments/ (1 replies)
  56. Need help with Tube Selection..(and a couple questions) (12 replies)
  57. B9A ceramic PCB mount sockets (4 replies)
  58. Fake Rubycon caps on Ebay (24 replies)
  59. Electronics (2 replies)
  60. "Free" defective Fisher OPT (3 replies)
  61. Audio Diffmaker (0 replies)
  62. Tube Mixer, REDUX (I am the OP) (19 replies)
  63. Alan Dower Blumlein "garter" circuits now in triode mode EL34 P-P amp (24 replies)
  64. FA: Rare Tubes WE 211E , B65's , EL34 , 2A3 single plates (0 replies)
  65. Need Mcintosh MC225 parts source (7 replies)
  66. Mystery tube amplifier - SOUND Electronic, model TWO FIFTEEN (19 replies)
  67. To ground or to cathode? (6 replies)
  68. Quiet around here... (3 replies)
  69. 70L7 based PC speaker built! (4 replies)
  70. Hammond Transformers and East German Tubes/Valves (6 replies)
  71. Yo, 'bots, watch this! (3 replies)
  72. FA: Regency HF-200 mono 6L6 amps...PAIR (0 replies)
  73. Revised pages on 845 amps and SE32 with 13Ei. (1 replies)
  74. Kicking Miller and his bleeding capacitance to death (9 replies)
  75. FA: Western Electric 242C (211) Tubes (1 replies)
  76. Most Linear Region (55 replies)
  77. Holy Moses, that's a flying bike! (1 replies)
  78. FA: Telefunken RS237 100-Watt Triodes (1 replies)
  79. Looking for somebody that can test some tubes for me (13 replies)
  80. Sonic advantages of beefing up the power supply (29 replies)
  81. FA: Heath Williamson W-2M amplifier/preamp/power supply (0 replies)
  82. Tube - Tube - SS - 3 stage hybrid amps question (4 replies)
  83. Porsche Design Dashboard Mens Watch 6612.11.44.1139 Cheapest (0 replies)
  84. Template for Patrick (6 replies)
  85. Re: ×ÉÄÅÏ âÒÉÔÎÉ É ëÅ×ÉÎÁ. (1 replies)
  86. Fisher 500C voltages (3 replies)
  87. "S" trademark logo on amp I want to ID (0 replies)
  88. New Heron Restaurant in Bandon, tres expensif (27 replies)
  89. Deep Space 845 55W SET amps. (83 replies)
  90. For collectors radio interested (0 replies)
  91. FA: Heathkit Williamson W-2M (0 replies)
  92. Poofie B'ar, self-styled arbiter of PC-ness (0 replies)
  93. The post-Beijing amplifier (24 replies)
  94. Re: Who should be first to die off in the "energy crisis"? (0 replies)
  95. Jadis & KT88s (2 replies)
  96. FA: Telefunken RS242, RE404, RE304 Triodes (2 replies)
  97. thanks for the tip (1 replies)
  98. Output transformer design notes by Crowhurst. (4 replies)
  99. Who should be first to die off in the "energy crisis"? (133 replies)
  100. Lafayette AM/FM Tube Tuner (2 replies)
  101. Audio 101 Amp/Speaker Impedance Mismatch (21 replies)
  102. FS: 2pcs MC transformer Sowter 8055e (0 replies)
  103. FA: Rare audio tubes like 2A3 Fivre, 275A Western Electric, PX4Osram, Cas and F2A Siemens on Ebay (0 replies)
  104. A new Ebay record (6 replies)
  105. Hickok 536 tester reading GM (9 replies)
  106. Rectifiers for the Gods?! (11 replies)
  107. Awesome recording / hi-fi source (8 replies)
  108. Knight KN924 Amplifier (0 replies)
  109. 539C (1 replies)
  110. Norton amplifier from 1940's (pics) (3 replies)
  111. rca tube manuals for sale (0 replies)
  112. audio encyclopedia for sale (3 replies)
  113. Cheap or free sources for Mullard Tube Circuits For Audio Amplifiers (10 replies)
  114. FA: Micro Seiki AX-1 armboard + Box + Parts * NO RESERVE (0 replies)
  115. On the Concertina phase inverter controversy (4 replies)
  116. Vortexion MR1230 12 channel valve unit (6 replies)
  117. Output resistance of the CPI or "concertina phase inverter" (0 replies)
  118. Tube Troubles (106 replies)
  119. Freed transformers (6 replies)
  120. Hum troubles in Audion PP 300B amp. (1 replies)
  121. LOT #2 old antique radios for sale-Majestic-WardsAirline-Philco-Silvertone-more (0 replies)
  122. WTB: ECH81 tube, aka 6AJ8 (2 replies)
  123. Fred Nachbaur's website (5 replies)
  124. TRIODEN NEOTRON 10Y ( VT25 ) (0 replies)
  125. FS: One NOS RCA 6386 Black plate (1 replies)
  126. 2 X TRIODES NEOTRON 10Y ( VT25 ) (0 replies)
  127. The Triode Connected 46! (12 replies)
  128. FA: SME 3012 tonearm * Headshell * Beautiful * No Reserve (0 replies)
  129. Unusual Mystery Tube (4 replies)
  130. FA: Fidelity Research Headshell * Silverwire * NO RESERVE (0 replies)
  131. 6DJ8 = ECC88 != 6N1P (26 replies)
  132. How hot should preamp tubes run? (5 replies)
  133. ONLINE RESOURCE FOR HELP DESK SOFTWARE (0 replies)
  134. FA: Ortofon RMG 212 Tonearm * Handmade * No Reserve * Minty (0 replies)
  135. VAC 7070 problems (11 replies)
  136. FS: FIVE(5) NOS RCA 6197 AUDIO AMPLIFIER PENTODES (1 replies)
  137. 6N1P conflicting heater/cathode voltage specs (17 replies)
  138. Audio Cyclopedia - A highly recommended book (131 replies)
  139. (4) Radios F/S-Wards Airline, Grigsby-Grunow, (2) Philco (2 replies)
  140. Silvertone Stereo HIgh Fidelity single ended tube amp w/reverbunit-rare vintage audio amp-$150 (2 replies)
  141. FA: Eimac 4CX1000A, Raytheon CK722 & 4 Sets of tubes (0 replies)
  142. Looking for Splicing Tape for 1/4" Mag Tape (2 replies)
  143. LATEST MP3 SONGS, ENGLISH SONGS, HINDI SONGS, PANJABI SONGS AND MANYMORE......... (0 replies)
  144. TIP50 for HT regulator (16 replies)
  145. HUGE lot of old wooden-bakelite-plastic radios, phonograghs, tapedecks, RCA Magazine Loaded Soundtape recorder, 4-track cartridges/decks, etc.for sale- (1 replies)
  146. Tube condition (10 replies)
  147. Presto 92-B amplifier -WTD schematic (0 replies)
  148. Cruelty to a 12AU7 ? (8 replies)
  149. 18 mini plexi pwr supply ripple / headache .. (36 replies)
  150. FA Heathkit W7 Tube Amp circa 1960 (0 replies)
  151. FA: 417A, 6197 & 12au7 NOS TUBES (0 replies)
  152. OB2 Regulator Tube Question (2 replies)
  153. How to Use an HP 400D R.M.S. VTVM? (8 replies)
  154. CLICK HERE FOR DOWNLOAD SONGS, WALLPAPER, AND MANY MORE....... (0 replies)
  155. FA: 2A3H Vacuum Tube (2 replies)
  156. FA: Inovonics 250 Stereo Processor ,no reserve (0 replies)
  157. FAL Inovonics 250 Stereo Processor (0 replies)
  158. CLICK HERE FOR DOWNLOAD SONGS, WALLPAPER, AND MANY MORE....... (0 replies)
  159. Re: Fotoneista ja energiasta (0 replies)
  160. 5B 255M amplifier? (8 replies)
  161. On KT88 and other tubes in Guitar Amps (0 replies)
  162. The Tube Center - Your Leading Vacuum Tubes and Tube Parts Supplier (0 replies)
  163. FA: Realistic Stereodyne 40 Stereo Tube Amp (1 replies)
  164. Difference between Genalex KT88 and Genalex Gold Lion KT88 ? (18 replies)
  165. For Sale: Premodded Consoles, Ori / Backup Games Plus Retro Stuff (0 replies)
  166. FA: Inovonic's Broadcast Processors (0 replies)
  167. Fisher 400 question (5 replies)
  168. Looking for schematic (2 replies)
  169. 6922 for a Magnum Dynalab 90T (3 replies)
  170. feedback & stability (long) (15 replies)
  171. Happy Canada Day (2 replies)
  172. Datasheet needed for Tung-Sol DigiVac DT-1704 Vacuum FluorescentDisplay (0 replies)
  173. Mercury Records/PAX AM/FM/8-track surround sound receiver-$100 freeshipping USA-serviced-tested-playing (0 replies)
  174. LF step network with Miller Capacitance (0 replies)
  175. Nice photos of a MC-30 on this ebay auction: (0 replies)
  176. Equivalent active device circuit for CT choke. (26 replies)
  177. Death of Carl G. Eilers (8 replies)
  178. Vacuum Tube 6EJ7 Test (4 replies)
  179. conrad-johnson pv5 (15 replies)
  180. Gullibards Unlimited (0 replies)
  181. LF Gain Stepping RC Network Calculator (54 replies)
  182. building a PP amp (63 replies)
  183. Mary Poppins on a bicycle (0 replies)
  184. One of the Largest Vacuum Tube Suppliers (1 replies)
  185. Good Source ? (0 replies)
  186. Dead music, God, and unicorns (22 replies)
  187. Ping. Ian Thompson-Bell (1 replies)
  188. your first home build valve amp (11 replies)
  189. Re: The Stereo 70 Was A ****box (0 replies)
  190. Help us save usenet news for Time-Warner customers (0 replies)
  191. Testing Rare Tubes Types: 242A, 242C, 284D & RS237 (1 replies)
  192. NFB for absolute beginners. (2 replies)
  193. Measuring Phase Response (20 replies)
  194. Old Paper--The Stability Problem in Feedback Amplifiers (16 replies)
  195. FA ; RCA shirt poloshirt old radio classic 1 DAY LEFT! (1 replies)
  196. test (0 replies)
  197. FA: Stark/HickOK 12-22A Tube Tester (0 replies)
  198. kt88 (6 replies)
  199. Old Paper--"Step" networks (14 replies)
  200. Old Paper--Analysis of Split-Load Phase Inverter (0 replies)
  201. Music with vitality (1 replies)
  202. Help with vacuum parameter (9 replies)
  203. test (0 replies)
  204. FA: 2 x GEC MOV 6AS7G NOS NIB 99c no reserve rare tubes (1 replies)
  205. Ryhmän sfnet.harrastus.melonta virallinen kuvaus (0 replies)
  206. FA: Rare Tubes Mullard el34 metal base Matched pair, CV4004, 12AX7WA,French miniatron 417A + more All NOS (0 replies)
  207. triode-pentodes (48 replies)
  208. Calculating RC networks the easy way. (22 replies)
  209. Testing Tubes (0 replies)
  210. Cross-post: New Episode on the Celtic Myth Podshow - Let Fly theCrows of Battle (0 replies)
  211. Andre of Cork? (2 replies)
  212. Re: British view of BH Obama......interesting.... (2 replies)
  213. test (0 replies)
  214. TEST (2 replies)
  215. The VOX Valvetronix (6 replies)
  216. FS Tand Berg 3B Vintage 1960 R to R (0 replies)
  217. FS Tandberg 3B Vintage 1960 R to R (0 replies)
  218. Connecting an oddball load to output transformer secondary (3 replies)
  219. test (0 replies)
  220. HYTRON ( VT25 ) (1 replies)
  221. headphone surround processors? (1 replies)
  222. A Tube Amplifier That Will Drive Any Speaker...... (13 replies)
  223. Caveat Emptor (11 replies)
  224. FA: Start 9-66 Tube Tester with optional adaptor kit and more! (1 replies)
  225. NFB-301? (13 replies)
  226. FA: Amperex/Cetron 845 Vacuum Tube (0 replies)
  227. Ping: John Byrns. PPMeters (0 replies)
  228. Simple IR remote volume kit. (13 replies)
  229. Re: Vacuum Tubes - Are They Warmer Sounding? (3 replies)
  230. Suggestions for a soldering iron (15 replies)
  231. HF Gain Stepping RC Network Calculator (16 replies)
  232. Solid State in the final ? (25 replies)
  233. Moderated Yahoo Group (1 replies)
  234. Vacuum Tubes - Are They Warmer Sounding? (125 replies)
  235. 9 pin octals (18 replies)
  236. FA:Stark 9-66 Vintage Tube Tester (0 replies)
  237. One a Minute ? (21 replies)
  238. NFB101 part 3 (47 replies)
  239. Re: Calculatating RC parallel and series impedance networks. (0 replies)
  240. OH...MY....GOD !!! (0 replies)
  241. Which are the desireable Mcintosh Amplifiers? (1 replies)
  242. Re: Re: Calculatating RC parallel and series impedance networks. (1 replies)
  243. Re: Calculatating RC parallel and series impedance networks. (0 replies)
  244. Cross-post: New Episode on the Celtic Myth Podshow (0 replies)
  245. Re: c.1954 Zenith L1083 (10L20) in Houston (0 replies)
  246. Re: VAC 7070 power supply made GOOD! (0 replies)
  247. Re: Remote Power Supply Connection (7 replies)
  248. Patric's radios (4 replies)
  249. Free Free Free US Dollars 10,000 Per Month without Investment. (0 replies)
  250. FA: Western Electric/ALTEC 284D Vacuum Tubes (0 replies)