| Tubes - Showing threads 2001 to 2200 of 11911 available |
▫ Need some help with simulation ▫ 01-09-2008 06:54 PM - 4 replies
▫ output tranny for 6AK6 ▫ 01-09-2008 06:14 PM - 2 replies
▫ What tubes for 7K6PP X-former ▫ 01-09-2008 06:06 PM - 4 replies
▫ Ham radio op makes his own triodes ▫ 01-09-2008 02:18 PM - 0 replies
▫ Newbie looking for some advice on mods and tubes for Cayin TA-30 ▫ 01-09-2008 06:45 AM - 0 replies
▫ Power Transconductance Amp with Tubes, How? ▫ 01-09-2008 05:28 AM - 26 replies
▫ using the 6BX7 at low'ish current in Aikido ▫ 01-09-2008 04:07 AM - 4 replies
▫ What preamp should I build? ▫ 01-09-2008 01:53 AM - 141 replies
▫ Transformer hookup question. ▫ 01-08-2008 11:49 PM - 8 replies
▫ Home made vacuum tubes ▫ 01-08-2008 09:36 PM - 1 reply
▫ My New EL84 PP ▫ 01-08-2008 09:27 PM - 17 replies
▫ Hammond power transformer fillament rating ▫ 01-08-2008 07:39 PM - 4 replies
▫ Need help with a Russian Triode ▫ 01-08-2008 06:02 PM - 12 replies
▫ TRAFO NEEDED FOR EL84 pp ▫ 01-08-2008 05:34 PM - 18 replies
▫ Difference between 6JN6 (Berning output) and 6JB6 tubes? ▫ 01-08-2008 03:35 PM - 1 reply
▫ 2A3 SE Amp ▫ 01-08-2008 03:02 PM - 11 replies
▫ Soldering tubes directly to PCB? ▫ 01-08-2008 12:01 PM - 18 replies
▫ pa amp distortion at low volume ▫ 01-08-2008 02:09 AM - 2 replies
▫ Transformer input for guitar ▫ 01-08-2008 01:35 AM - 7 replies
▫ Potted transformers ▫ 01-07-2008 09:49 PM - 22 replies
▫ if this can works... ▫ 01-07-2008 09:38 PM - 4 replies
▫ Differential scope probes? ▫ 01-07-2008 04:42 PM - 10 replies
▫ Fisher X100B Iron ▫ 01-07-2008 03:29 PM - 3 replies
▫ Solid state power suppy for CAT SL-1 ▫ 01-07-2008 02:57 PM - 0 replies
▫ Help with wiring a Hammond Power Transformer ▫ 01-07-2008 09:52 AM - 3 replies
▫ User manual for GTA SE-40 Tube Amp ? ▫ 01-07-2008 05:58 AM - 2 replies
▫ tube caps that fit.. anyone? ▫ 01-07-2008 12:53 AM - 8 replies
▫ Heater wires through conduit ▫ 01-06-2008 06:46 PM - 5 replies
▫ AB2 guitar amp design questions ▫ 01-06-2008 05:49 PM - 12 replies
▫ Wanted - Svet Sk4A bases ▫ 01-06-2008 12:18 PM - 0 replies
▫ AC Characteristics of Glow Tubes? ▫ 01-06-2008 05:58 AM - 9 replies
▫ Bargain Used Transformers: Where? ▫ 01-06-2008 12:36 AM - 1 reply
▫ Top cap tube users: pics of your amps? ▫ 01-05-2008 11:21 PM - 30 replies
▫ Question ▫ 01-05-2008 01:38 PM - 3 replies
▫ New Pentode measuring resistance between grids G2 and G3 any idea? ▫ 01-05-2008 01:22 PM - 5 replies
▫ Audio Transformers 101 ▫ 01-05-2008 06:52 AM - 2 replies
▫ Thinking about having a 211 SET amp built, anyone know of good schematics? ▫ 01-05-2008 03:54 AM - 0 replies
▫ 4-65A Triode curves? ▫ 01-05-2008 01:19 AM - 24 replies
▫ Is This A Good Reliable Tube Tester? ▫ 01-05-2008 12:34 AM - 11 replies
▫ Tube projects ▫ 01-04-2008 11:47 PM - 2 replies
▫ Push-Pull Cathode Bias Resistors ▫ 01-04-2008 09:02 PM - 5 replies
▫ Opinion on 300B SETs ▫ 01-04-2008 07:00 PM - 1 reply
▫ Output transformer for a 6EM7 headphone amp ▫ 01-04-2008 03:21 PM - 6 replies
▫ So how tattered is your Morgan Jones? ▫ 01-04-2008 02:35 PM - 8 replies
▫ Friend wants to buy a nice tube preamp ▫ 01-04-2008 11:17 AM - 8 replies
▫ Large Oil Capacitors ▫ 01-04-2008 10:31 AM - 23 replies
▫ Too awesome for words ▫ 01-04-2008 09:12 AM - 28 replies
▫ M65 stereo preamp question ▫ 01-04-2008 07:58 AM - 4 replies
▫ nasty buzz in old 35EH5 amp ▫ 01-04-2008 12:44 AM - 12 replies
▫ 6C33C tube stamp ▫ 01-04-2008 12:01 AM - 4 replies
▫ Question about VTV 6SN7 Schematic ▫ 01-03-2008 04:48 PM - 6 replies
▫ Simple Magic Eye Circuit Wanted ▫ 01-03-2008 04:20 PM - 7 replies
▫ Mute circuit on sonic frontier line one ▫ 01-03-2008 12:20 PM - 1 reply
▫ Data point software? ▫ 01-03-2008 12:01 AM - 6 replies
▫ MingDa MC-3R / icon audio la3 preamp mods ▫ 01-02-2008 10:52 PM - 2 replies
▫ Biasing ▫ 01-02-2008 05:39 PM - 4 replies
▫ Compactron characteristic curves? ▫ 01-02-2008 05:15 PM - 16 replies
▫ Analog Metric grounded grid preamp kit ▫ 01-02-2008 12:33 PM - 5 replies
▫ Possible group buy of Lundahl input/phase splitter transformers. ▫ 01-02-2008 12:30 PM - 41 replies
▫ Audio Measurements ▫ 01-02-2008 11:41 AM - 13 replies
▫ B/A 20-4 tube mono block?? ▫ 01-02-2008 06:36 AM - 0 replies
▫ Strange find.. help ID? ▫ 01-02-2008 04:22 AM - 10 replies
▫ 813 Thoughts ▫ 01-02-2008 01:37 AM - 40 replies
▫ External 12V heater supply conversion question ▫ 01-02-2008 01:30 AM - 20 replies
▫ My Latest Acquisition ▫ 01-01-2008 04:08 PM - 22 replies
▫ 50/60/whatever cycle hum ▫ 01-01-2008 11:27 AM - 11 replies
▫ OEP input transformers. Anyone used ?? ▫ 01-01-2008 10:27 AM - 4 replies
▫ Restack transformer from PP to SE ▫ 12-31-2007 07:30 PM - 17 replies
▫ Se 807?? ▫ 12-31-2007 04:43 PM - 1 reply
▫ Min 9-pin or 7-pin sockets to fit octal-sized holes? ▫ 12-31-2007 08:01 AM - 8 replies
▫ Question about phono preamp schematic ▫ 12-31-2007 12:41 AM - 11 replies
▫ Lectron JH50 unknown parts? ▫ 12-30-2007 05:17 PM - 1 reply
▫ Fostex or Car Speakers for My Tube Car Amp ▫ 12-30-2007 03:28 PM - 1 reply
▫ schematics? (also some questions) ▫ 12-30-2007 02:35 AM - 0 replies
▫ Regulated Power Supply. Bipolar, JFET or MOS? ▫ 12-30-2007 12:34 AM - 4 replies
▫ UL to triode mode conversion on cathode bias amp-different cathode resistors needed? ▫ 12-29-2007 07:08 PM - 6 replies
▫ Blown up resistor in S-5 amp kit... ▫ 12-29-2007 04:55 PM - 24 replies
▫ EZ80 or 81 ▫ 12-29-2007 02:23 PM - 8 replies
▫ Gun or Iron? ▫ 12-29-2007 12:30 AM - 13 replies
▫ Shanling SP-80C Problem - DC Spikes?! ▫ 12-28-2007 11:07 PM - 7 replies
▫ Silvertone Organ amp, weird osc section. ▫ 12-28-2007 09:02 PM - 11 replies
▫ Need some advice on a LTP input stage. ▫ 12-28-2007 06:14 PM - 56 replies
▫ CAT 110V to 220 V conversion ▫ 12-28-2007 05:39 PM - 3 replies
▫ When is a compactron not a compactron? ▫ 12-28-2007 05:45 AM - 4 replies
▫ Looking for big Ni lams ▫ 12-28-2007 12:35 AM - 24 replies
▫ Three PP KT88 designs. Which one ... (please;-) ▫ 12-27-2007 11:32 PM - 28 replies
▫ EAR 834P needing repair ▫ 12-27-2007 09:23 PM - 12 replies
▫ How to make non-polarized electrolytic cap? ▫ 12-27-2007 08:20 PM - 6 replies
▫ Toasted PW tranformer? ▫ 12-27-2007 06:37 PM - 16 replies
▫ Tube Cad from Glass-Ware questions ▫ 12-27-2007 04:56 PM - 2 replies
▫ U-links for earthing ▫ 12-27-2007 04:43 PM - 0 replies
▫ Supreme 45 tube amp ▫ 12-27-2007 02:10 PM - 7 replies
▫ Boxing Day Special ▫ 12-27-2007 05:03 AM - 22 replies
▫ Look what Santa brought! ▫ 12-27-2007 02:13 AM - 30 replies
▫ Soft Start for Tubes ▫ 12-27-2007 01:55 AM - 4 replies
▫ Need help to check out this preamp schematic. ▫ 12-26-2007 11:23 PM - 7 replies
▫ What dimensions for perforated AL sheet? ▫ 12-26-2007 10:49 PM - 2 replies
▫ NC pins on submin tubes ▫ 12-26-2007 10:23 PM - 3 replies
▫ Cheap alternative to EF86 ▫ 12-26-2007 09:23 PM - 29 replies
▫ MOSFET follower driver oscillation ▫ 12-26-2007 07:48 PM - 19 replies
▫ Fender "Twin Reverb Amp" has no output. ▫ 12-26-2007 04:49 PM - 5 replies
▫ Hi-Fi system build ▫ 12-26-2007 03:27 PM - 13 replies
▫ Car Tube Amp ▫ 12-26-2007 02:43 PM - 17 replies
▫ Tube Identification ▫ 12-26-2007 11:04 AM - 7 replies
▫ Supratek schematics? ▫ 12-26-2007 09:55 AM - 0 replies
▫ Choice of OTL output capacitors ▫ 12-25-2007 05:02 PM - 2 replies
▫ Feedback scheme. ▫ 12-25-2007 11:30 AM - 9 replies
▫ Christmas Eve ▫ 12-24-2007 07:30 PM - 33 replies
▫ Best tubes for Scott 222 ▫ 12-24-2007 06:55 AM - 0 replies
▫ HH Scott 222 speaker recommendations and upgrades ▫ 12-24-2007 06:55 AM - 3 replies
▫ mixing coupling cap types ▫ 12-24-2007 01:51 AM - 1 reply
▫ Transformer chassis layout ▫ 12-24-2007 01:06 AM - 5 replies
▫ SimpleSE / Edcor CXSE OPT ▫ 12-23-2007 08:14 PM - 33 replies
▫ Star ground help ▫ 12-23-2007 06:04 PM - 26 replies
▫ What causes my 0D3 to extinguish? ▫ 12-23-2007 02:05 PM - 45 replies
▫ converting UL in triode ▫ 12-23-2007 09:24 AM - 11 replies
▫ Beyer Dynamic BV35570 ▫ 12-23-2007 01:06 AM - 0 replies
▫ Lundahl LL1527 phase-splitter ▫ 12-22-2007 07:37 PM - 5 replies
▫ Morgan Jones HPA ...strange startup behaviour ▫ 12-22-2007 06:18 PM - 43 replies
▫ Best Sounding Phono Input Tube ▫ 12-22-2007 05:43 PM - 48 replies
▫ My Headphone Design ▫ 12-22-2007 09:56 AM - 14 replies
▫ We417+300b ▫ 12-21-2007 05:13 PM - 33 replies
▫ class-A PP amplifier with 2x 845 question ▫ 12-21-2007 02:39 PM - 4 replies
▫ Kismet-300B-amp ▫ 12-21-2007 02:28 PM - 4 replies
▫ The biggest bunch of tubes ever seen ▫ 12-21-2007 09:11 AM - 74 replies
▫ Will differential share the same THD characteristics as SE, if same triode is used? ▫ 12-21-2007 08:19 AM - 38 replies
▫ DHT AC Filament Noise ▫ 12-21-2007 03:24 AM - 28 replies
▫ augmented cathode follower? ▫ 12-21-2007 02:35 AM - 89 replies
▫ Tube amp find in old theater ▫ 12-21-2007 01:25 AM - 8 replies
▫ Is there a better amp kit???? ▫ 12-21-2007 12:34 AM - 30 replies
▫ figuring amplification factor of a tube ▫ 12-20-2007 10:54 PM - 15 replies
▫ SE 6l6 ▫ 12-20-2007 10:48 PM - 1 reply
▫ Need help ▫ 12-20-2007 09:24 PM - 13 replies
▫ Dynaco (Dynaclone) PA060 transformer ▫ 12-20-2007 06:14 PM - 14 replies
▫ Switching power supply for tube filaments possible??? ▫ 12-20-2007 09:09 AM - 12 replies
▫ Mysterious UTC X-2806 / RCA 949426-2 Transformer ▫ 12-20-2007 04:35 AM - 4 replies
▫ DN2540/2535 fun and games ▫ 12-20-2007 04:34 AM - 0 replies
▫ 6P3S SE amp requesting ▫ 12-19-2007 11:31 PM - 1 reply
▫ Newbie needs Magnavox console troubleshooting tips ▫ 12-19-2007 09:21 PM - 10 replies
▫ 6bBYGA x2 as full-wave rectifier? ▫ 12-19-2007 04:50 PM - 2 replies
▫ Digital volume/tone control in Tube amps ▫ 12-19-2007 04:06 PM - 13 replies
▫ plotting load-line for OTL amp? ▫ 12-19-2007 02:53 PM - 2 replies
▫ New SE 6P15P project ▫ 12-19-2007 12:16 PM - 21 replies
▫ New Production Shuguang Type 50 Tubes ▫ 12-19-2007 10:15 AM - 14 replies
▫ Running different tubes ▫ 12-19-2007 05:46 AM - 2 replies
▫ Fairchild 260 rebuild questions ▫ 12-19-2007 03:39 AM - 13 replies
▫ Filament Voltage vs. Hum ▫ 12-18-2007 11:23 PM - 6 replies
▫ drawing a loadline from schematics ▫ 12-18-2007 07:56 PM - 3 replies
▫ Know this tube? 10J12C or 10X12C ... ▫ 12-18-2007 12:18 PM - 7 replies
▫ Precision Fidelity - C7 Mods...help Wanted! ▫ 12-18-2007 10:50 AM - 12 replies
▫ stupid newbie: what is this transformer??? ▫ 12-18-2007 09:50 AM - 8 replies
▫ Anyone else having problems with Mercury Magnetics transformers? ▫ 12-18-2007 06:54 AM - 5 replies
▫ EF86-EL84: too much gain! ▫ 12-18-2007 06:01 AM - 8 replies
▫ Balanced Power ▫ 12-17-2007 06:25 PM - 21 replies
▫ GTA 300B SE Mk.II Power Transformer ▫ 12-17-2007 01:50 PM - 4 replies
▫ Tube Shields ▫ 12-17-2007 01:44 PM - 1 reply
▫ Some basic questions about s-5 amp kit mods ▫ 12-17-2007 06:36 AM - 15 replies
▫ Novice Voltage Regulator Question ▫ 12-17-2007 06:36 AM - 39 replies
▫ The Critical Ear ▫ 12-17-2007 04:37 AM - 36 replies
▫ Tube matching service - As found on Craigslist ▫ 12-17-2007 03:04 AM - 1 reply
▫ Duosonic 40's era record player ▫ 12-17-2007 02:49 AM - 20 replies
▫ 6j1 question ▫ 12-17-2007 02:49 AM - 0 replies
▫ 6bl8 el84 nfb question ▫ 12-17-2007 02:37 AM - 2 replies
▫ 6T9 push pull ▫ 12-16-2007 10:24 PM - 2 replies
▫ 12AY7 circuit? ▫ 12-16-2007 04:33 PM - 29 replies
▫ E810F: RIAA circuits ▫ 12-16-2007 03:51 PM - 8 replies
▫ need EL519/6KG6 spice 3f4 model ▫ 12-16-2007 03:45 PM - 0 replies
▫ enough gain for James tone stack ▫ 12-16-2007 02:01 PM - 17 replies
▫ Anyone recognise this amp? ▫ 12-16-2007 02:42 AM - 7 replies
▫ Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations? ▫ 12-15-2007 08:21 PM - 18 replies
▫ matched tubes? ▫ 12-15-2007 12:20 AM - 6 replies
▫ List of current production types ▫ 12-14-2007 11:05 PM - 3 replies
▫ Soundcard greater than 24-bit ▫ 12-14-2007 03:13 PM - 2 replies
▫ Replacing Valves Leak Stereo 20 ▫ 12-14-2007 08:54 AM - 6 replies
▫ Help designing Class-A, tube, transformer coupled, studio grade pre-amp ▫ 12-14-2007 07:22 AM - 8 replies
▫ I Damaged my Amp? ▫ 12-14-2007 07:04 AM - 26 replies
▫ EL84 Triode PP Design ▫ 12-14-2007 03:10 AM - 23 replies
▫ pentode with grid AND cathode tied to gnd? ▫ 12-14-2007 01:03 AM - 5 replies
▫ What d'you put in the PSU chassis, and what in the circuit chassis? ▫ 12-13-2007 10:14 PM - 5 replies
▫ a real no-brainer question about 1/2 tubes ▫ 12-13-2007 06:07 PM - 3 replies
▫ 813 power supply question ▫ 12-13-2007 04:24 PM - 6 replies
▫ ESR of motor-run caps? ▫ 12-13-2007 03:33 PM - 12 replies
▫ OPT-102 - data? (Audio Electronic Supply) ▫ 12-13-2007 05:25 AM - 1 reply
▫ Help me out with a circuit design ▫ 12-12-2007 09:24 PM - 10 replies
▫ Partial Feedback EL84PP - Not quite as expected (yet) ▫ 12-12-2007 09:24 PM - 44 replies
▫ Preamp suggestions - Help a hack have some fun ▫ 12-12-2007 04:40 PM - 9 replies
▫ 6GK6 Ultralinear ▫ 12-12-2007 12:31 AM - 14 replies
▫ Vacuum Rectifier Question ▫ 12-12-2007 12:04 AM - 16 replies
▫ LM4702 meets up with 6550's ▫ 12-11-2007 01:48 PM - 4 replies
▫ 6bx7gt envelope temperature ▫ 12-11-2007 06:34 AM - 6 replies
▫ Counterpoint SA 3 schematic ▫ 12-11-2007 06:34 AM - 2 replies
▫ Tubes measured in microhms = mA..? ▫ 12-11-2007 04:42 AM - 2 replies
▫ Checking ARC SP9 ▫ 12-11-2007 02:47 AM - 2 replies
▫ 6J11 Datasheet anyone? ▫ 12-11-2007 01:07 AM - 4 replies
▫ Help cleaning tube pins ▫ 12-10-2007 06:58 PM - 10 replies
▫ Best way to use a PAIR of 6SL7s to drive a 300B? ▫ 12-10-2007 03:51 PM - 5 replies
▫ preamp cathode bypass cap benefits ▫ 12-10-2007 02:48 PM - 15 replies
▫ EF184 or (EC)L82 radio amplifier?! ▫ 12-10-2007 10:03 AM - 4 replies
▫ 5687 for Aikido ▫ 12-10-2007 07:28 AM - 7 replies
▫ Pre Amplifier Out Sockets ▫ 12-10-2007 03:06 AM - 1 reply
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