| Tubes - Showing threads 6601 to 6800 of 11696 available |
▫ Aikido tube choice ▫ 11-25-2005 01:00 PM - 22 replies
▫ Biasing pre-amp problem ▫ 11-25-2005 06:49 AM - 3 replies
▫ Help with identifying tube ▫ 11-24-2005 07:43 PM - 1 reply
▫ Headphone out for Tube Amps ▫ 11-24-2005 07:35 PM - 4 replies
▫ Off Topic Holiday Cheer ▫ 11-24-2005 04:22 PM - 8 replies
▫ Prototype preamp example ▫ 11-24-2005 10:52 AM - 0 replies
▫ PV10AL Transformer burned, help! ▫ 11-24-2005 04:31 AM - 5 replies
▫ EL34 Pentode in Push-Pull! ▫ 11-24-2005 02:42 AM - 65 replies
▫ Mcintosh MX110 repair ▫ 11-24-2005 12:49 AM - 0 replies
▫ Mains Transformer Question ▫ 11-23-2005 03:08 PM - 10 replies
▫ Loaded Question ▫ 11-23-2005 02:14 PM - 2 replies
▫ A BIG SCRATCH in my speakers? Help me please. ▫ 11-23-2005 11:00 AM - 26 replies
▫ New Production Tung Sol 6550 Tubes - Opinions ▫ 11-23-2005 10:04 AM - 3 replies
▫ Looking to build a tube integrated ▫ 11-23-2005 03:06 AM - 62 replies
▫ Which high power CCS for output stage? ▫ 11-22-2005 09:35 PM - 12 replies
▫ Using a mosfet to drop B+? ▫ 11-22-2005 04:38 PM - 46 replies
▫ drawings vs. schematics ▫ 11-22-2005 03:04 PM - 11 replies
▫ New TEK Scopes ▫ 11-22-2005 12:28 PM - 22 replies
▫ Transfos Anyone? ▫ 11-22-2005 03:32 AM - 4 replies
▫ Ripple guidelines for power supplies ▫ 11-22-2005 12:45 AM - 14 replies
▫ Mains transformer orientation ▫ 11-21-2005 11:49 PM - 20 replies
▫ New Nightmare (Guitar Amp) ▫ 11-21-2005 11:29 PM - 48 replies
▫ AMD tube integrated tube amp ▫ 11-21-2005 11:17 PM - 0 replies
▫ Using Choke in LCRC filter in power supply ▫ 11-21-2005 04:16 PM - 5 replies
▫ Need good current sink JFET or MOSFET? ▫ 11-21-2005 03:58 PM - 7 replies
▫ Setting Up a Circuit for Testing ▫ 11-21-2005 03:16 PM - 22 replies
▫ 6H6 question ▫ 11-21-2005 02:33 AM - 3 replies
▫ Kennedy Tube Audio Website Hijacked ▫ 11-20-2005 11:18 PM - 11 replies
▫ Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid..... ▫ 11-20-2005 11:02 PM - 744 replies
▫ transformer for Philips AG9015 ▫ 11-20-2005 07:34 AM - 5 replies
▫ Real McTube Help ▫ 11-20-2005 07:11 AM - 2 replies
▫ Where are the 307A / VT225 amps? ▫ 11-20-2005 04:52 AM - 26 replies
▫ Anyone have a single el84 PPP OPT? ▫ 11-20-2005 01:57 AM - 2 replies
▫ Finished First Guitar Amp ▫ 11-20-2005 12:20 AM - 10 replies
▫ Using an old power transformer as a choke? ▫ 11-19-2005 09:05 PM - 11 replies
▫ Convergent Audio Technology SL-1 Scematics ▫ 11-19-2005 03:04 PM - 0 replies
▫ Poinz 6AQ5 Linestage ▫ 11-19-2005 01:18 PM - 5 replies
▫ microphone preamp ▫ 11-19-2005 01:01 PM - 18 replies
▫ Ticking noise, need help. ▫ 11-19-2005 04:22 AM - 7 replies
▫ Humm in my preamp... ▫ 11-19-2005 02:37 AM - 5 replies
▫ Enclosure suggestion/questions ▫ 11-18-2005 07:24 PM - 12 replies
▫ Calculating Tube Parameters +SPICE ▫ 11-18-2005 05:07 PM - 3 replies
▫ Loudspeaker for TUBE DIYer ▫ 11-18-2005 04:26 AM - 3 replies
▫ Tube ID 18R-AL1? ▫ 11-17-2005 11:34 PM - 2 replies
▫ 6l6gc Tube Drive ▫ 11-17-2005 09:26 PM - 8 replies
▫ Need a little help, TT and PC? Amp Kit? ▫ 11-17-2005 09:02 PM - 10 replies
▫ 12ax7 preamp ▫ 11-17-2005 02:11 PM - 4 replies
▫ 308/ecll800 Lorenz ▫ 11-17-2005 01:16 PM - 2 replies
▫ How did you do your Aikido? ▫ 11-17-2005 11:37 AM - 18 replies
▫ Thoughts on this 807 design ▫ 11-17-2005 08:49 AM - 11 replies
▫ Rectifier compatibilty ▫ 11-17-2005 06:26 AM - 6 replies
▫ Tube amp for biamped speaker ▫ 11-17-2005 05:08 AM - 39 replies
▫ 12ae6, 12fk6, 12fm6 diode specs ▫ 11-17-2005 04:11 AM - 0 replies
▫ Any software out there for taking the headache out of composite loadlines? ▫ 11-17-2005 01:30 AM - 0 replies
▫ Driving a single 6L6GC with 12AX7 ▫ 11-17-2005 01:20 AM - 10 replies
▫ quick 50c5 to play around with ▫ 11-17-2005 12:55 AM - 76 replies
▫ A question about distortion in SE vs. PP designs: ▫ 11-17-2005 12:27 AM - 8 replies
▫ Need help on first tube amp rebuild -trans problems ▫ 11-16-2005 11:52 PM - 10 replies
▫ HAMMOND 125ESE Transformer WIRING ▫ 11-16-2005 02:19 PM - 1 reply
▫ preamp ps problem ▫ 11-16-2005 02:53 AM - 12 replies
▫ What does everybody really NEED??? ▫ 11-15-2005 07:20 PM - 25 replies
▫ Marantz 7C still good today? ▫ 11-15-2005 06:20 PM - 7 replies
▫ Magnavox Chassis #196-55 Resistor Question ▫ 11-15-2005 03:56 PM - 6 replies
▫ 6BL7 ▫ 11-15-2005 08:54 AM - 4 replies
▫ altec/peerless mystery amp ▫ 11-15-2005 08:32 AM - 22 replies
▫ 6gk8 triode pentode tube data ▫ 11-15-2005 08:17 AM - 4 replies
▫ Low Current Source ▫ 11-15-2005 05:21 AM - 5 replies
▫ Parallel Single-Ended Questions ▫ 11-14-2005 10:19 PM - 7 replies
▫ Tube power ratings ▫ 11-14-2005 06:31 PM - 19 replies
▫ 6DJ8 or 12xx7 for hybrid amp (Monarchy) ▫ 11-14-2005 12:00 PM - 55 replies
▫ What did I do wrong with LEGACY???? ▫ 11-14-2005 09:26 AM - 10 replies
▫ seeking: tube for a SEP parallel feed like an EL84, but with a lower Ra ▫ 11-14-2005 02:09 AM - 30 replies
▫ Tube Tracer ▫ 11-13-2005 01:55 PM - 11 replies
▫ a question of tube behaviour ▫ 11-13-2005 07:56 AM - 2 replies
▫ Which tube? ECC82, 6SN7 or 6SL7 ▫ 11-13-2005 07:51 AM - 8 replies
▫ oscillator ▫ 11-13-2005 07:10 AM - 9 replies
▫ The Covi Mark II Circlotron Amp ▫ 11-12-2005 11:33 PM - 7 replies
▫ HT transformers and polarity ▫ 11-12-2005 09:53 PM - 10 replies
▫ Hammond 156C - good Plate choke load?? ▫ 11-12-2005 03:24 PM - 9 replies
▫ Music Man sixtyfive reverb head needs help! ▫ 11-12-2005 01:06 PM - 2 replies
▫ DIY pre-amp kit vote ▫ 11-11-2005 09:46 PM - 28 replies
▫ 6550 tubes ▫ 11-11-2005 04:15 PM - 10 replies
▫ Is the 6N6P a direct substitute for the 5687? ▫ 11-11-2005 04:11 PM - 2 replies
▫ SE amp using 1619 instead of 45 triode ▫ 11-11-2005 04:40 AM - 9 replies
▫ Akai M-7 Amp Schematics? ▫ 11-10-2005 10:17 PM - 3 replies
▫ asl 845 monos mods ▫ 11-10-2005 08:12 PM - 0 replies
▫ 3 stages... Two Power Supplies ▫ 11-10-2005 07:25 PM - 3 replies
▫ RCA 7094 tetrodes... ▫ 11-10-2005 10:49 AM - 2 replies
▫ KT88 push pull ▫ 11-10-2005 06:10 AM - 5 replies
▫ Tube amp fan? ▫ 11-10-2005 02:14 AM - 5 replies
▫ Ping gerd..... ▫ 11-09-2005 09:29 PM - 3 replies
▫ Need help finding Sovtel EL84M tubes ▫ 11-09-2005 08:20 PM - 14 replies
▫ Min. current draw for choke input? ▫ 11-09-2005 08:15 PM - 14 replies
▫ Passive RIAA with tubes ▫ 11-09-2005 02:32 PM - 5 replies
▫ Oscillation Mystery ▫ 11-08-2005 11:50 PM - 50 replies
▫ unison research P30K schem? ▫ 11-08-2005 05:00 PM - 0 replies
▫ Can I use a 5R4 GY in place of a 5AR4? ▫ 11-08-2005 02:35 PM - 4 replies
▫ Seeking for all Norman H. Crowhurst papers ▫ 11-08-2005 07:12 AM - 9 replies
▫ best way to elevate heater? ▫ 11-08-2005 02:20 AM - 19 replies
▫ Tube Load Line ▫ 11-08-2005 01:25 AM - 10 replies
▫ Homemade Vacuum Tube ▫ 11-07-2005 08:36 PM - 30 replies
▫ beardm70mk2-want less b+ ▫ 11-07-2005 04:57 PM - 3 replies
▫ Need help with tube test data - fast ▫ 11-07-2005 03:16 PM - 15 replies
▫ Help about the 6SN7/5692 linestage ▫ 11-07-2005 10:07 AM - 8 replies
▫ Show me a schema 6Pi3C-E Push-pull ▫ 11-07-2005 10:07 AM - 6 replies
▫ Active load output stage ▫ 11-07-2005 09:46 AM - 68 replies
▫ Power supply question ▫ 11-07-2005 06:24 AM - 9 replies
▫ EL34 Triode Mode - G3 where? ▫ 11-07-2005 01:22 AM - 74 replies
▫ Is "reforming" Electrolytic Capacitors necessary? ▫ 11-06-2005 10:31 PM - 16 replies
▫ Screen grid driver for PL519? ▫ 11-06-2005 06:46 PM - 5 replies
▫ Best replacment for a 6F2 ▫ 11-06-2005 05:50 PM - 1 reply
▫ Please Tell Me How To Modify And Upgrade My Music Angle 845 Amplifier? ▫ 11-06-2005 03:47 PM - 3 replies
▫ Pentode to Triode trick. ▫ 11-06-2005 02:19 PM - 4 replies
▫ 6550 making a Popping sound? ▫ 11-06-2005 01:59 AM - 4 replies
▫ Pie-eyed and puzzled... ▫ 11-05-2005 08:10 PM - 13 replies
▫ How about this schematic ▫ 11-05-2005 03:06 PM - 2 replies
▫ tube disorder ▫ 11-05-2005 01:36 PM - 0 replies
▫ PC choke in a preamp ? ▫ 11-05-2005 10:36 AM - 7 replies
▫ selective tone control ▫ 11-05-2005 07:39 AM - 2 replies
▫ time for a laugh ▫ 11-05-2005 04:55 AM - 12 replies
▫ Another New Build Pictures ( G' Amp ) ▫ 11-04-2005 02:52 PM - 2 replies
▫ Help finding: 7-pin PCB socket, 90deg horizontal ▫ 11-04-2005 12:57 PM - 0 replies
▫ LC vs. CLC Theory ▫ 11-03-2005 10:49 PM - 5 replies
▫ Input transformer & volume pot ▫ 11-03-2005 10:13 PM - 19 replies
▫ MC34-B Quit working suddenly (newb) ▫ 11-03-2005 07:45 PM - 6 replies
▫ Golden Tube Audio 300B se ▫ 11-03-2005 03:39 PM - 2 replies
▫ Wanted: Pioneer sa-810 schematic ▫ 11-03-2005 11:00 AM - 8 replies
▫ se el34 finally ▫ 11-03-2005 03:55 AM - 8 replies
▫ Tube design question ▫ 11-03-2005 03:01 AM - 8 replies
▫ Marantz 8 clone build ▫ 11-03-2005 02:23 AM - 3 replies
▫ Active RIAA Eq for tubes- Brian Clark's article ▫ 11-02-2005 10:18 PM - 0 replies
▫ pre hums - even unplugged! ▫ 11-02-2005 10:15 PM - 14 replies
▫ Push Pull Preamplifier anybody? ▫ 11-02-2005 08:27 PM - 10 replies
▫ 6AN8 tube question ▫ 11-02-2005 08:07 PM - 3 replies
▫ Distortion in Fisher 800C ▫ 11-02-2005 05:13 PM - 1 reply
▫ 20% versus 43% screen tap ▫ 11-02-2005 04:53 PM - 10 replies
▫ Van der Veen transformers ▫ 11-02-2005 03:53 PM - 1 reply
▫ Want to upgrade Velleman K8020 ▫ 11-01-2005 01:56 PM - 3 replies
▫ KT88 Power supply question ▫ 10-31-2005 01:01 PM - 1 reply
▫ TX coupled, pentode linestage ▫ 10-31-2005 01:59 AM - 12 replies
▫ phase splitter question ▫ 10-30-2005 10:10 PM - 3 replies
▫ New preamp project is online ▫ 10-30-2005 10:59 AM - 3 replies
▫ Newbie: Which amps to build? ▫ 10-30-2005 08:07 AM - 3 replies
▫ Which valve, 5842 (417A) or 6H30 ▫ 10-30-2005 01:00 AM - 1 reply
▫ How do you punch out your chassis holes? ▫ 10-29-2005 08:51 PM - 23 replies
▫ recommend a 5Y3 based bass guitar amp? ▫ 10-29-2005 08:14 PM - 0 replies
▫ Help identifying tube tester ▫ 10-29-2005 01:37 PM - 2 replies
▫ paralelled tube ▫ 10-29-2005 12:36 PM - 2 replies
▫ ECC88 at 12 volts ▫ 10-29-2005 09:41 AM - 26 replies
▫ azarus preamplifier schematics ▫ 10-29-2005 08:42 AM - 0 replies
▫ Which valve amp do I keep? ▫ 10-29-2005 07:23 AM - 12 replies
▫ Favorite Driver for 845 ▫ 10-28-2005 05:30 PM - 4 replies
▫ Somebody has that magazine? ▫ 10-28-2005 05:16 PM - 0 replies
▫ modify parallel push-pull EL84 to single push-pull ▫ 10-28-2005 08:10 AM - 12 replies
▫ How long it will last? ▫ 10-27-2005 04:38 PM - 16 replies
▫ Hurricane Wilma ▫ 10-27-2005 02:13 AM - 12 replies
▫ Suddenly, no output from Copland CTA-501 ▫ 10-27-2005 01:16 AM - 9 replies
▫ 807 Audio Amp Progress Report ▫ 10-27-2005 12:08 AM - 41 replies
▫ Choke induced Hum ▫ 10-26-2005 05:22 PM - 47 replies
▫ Wim's DC EL84 amp ▫ 10-26-2005 05:13 PM - 14 replies
▫ Drivers for a KT88 pair ▫ 10-26-2005 03:53 PM - 6 replies
▫ what do u think of these tubes? ▫ 10-26-2005 11:27 AM - 4 replies
▫ 12BH7 spice 3f4 model ▫ 10-26-2005 07:31 AM - 1 reply
▫ Clone Marantz M7 Line Amp ▫ 10-26-2005 04:25 AM - 6 replies
▫ PIO caps question ▫ 10-26-2005 12:37 AM - 24 replies
▫ New Build Pics (guitar Amp) ▫ 10-25-2005 11:22 PM - 15 replies
▫ 6HF5 sweep tube single ended amp ▫ 10-25-2005 11:17 PM - 16 replies
▫ My first DIY ▫ 10-25-2005 06:13 PM - 0 replies
▫ Winding A Interstage Transformer ▫ 10-25-2005 03:45 PM - 4 replies
▫ help building 12ax7/el84 amp ▫ 10-25-2005 02:47 PM - 1 reply
▫ PSE schematic ▫ 10-25-2005 01:37 PM - 2 replies
▫ Using PSU Designer to calculate DC filament supply ▫ 10-25-2005 01:09 PM - 14 replies
▫ Dynaco stereo 70 driver board ▫ 10-25-2005 11:36 AM - 0 replies
▫ Excellent and cheap DIY INTERSTAGE! ▫ 10-25-2005 09:26 AM - 1 reply
▫ Need Advice with Timer Relay Shut Off ▫ 10-24-2005 10:59 PM - 7 replies
▫ standby switch ▫ 10-24-2005 05:34 PM - 11 replies
▫ Purpose of small cap across PSU rails? ▫ 10-24-2005 05:29 PM - 6 replies
▫ 6SL7 + EL34 SE Audio Amp ▫ 10-24-2005 04:03 PM - 5 replies
▫ guitar tube amp as home stereo ▫ 10-24-2005 03:01 PM - 6 replies
▫ 6C33 fixed/auto bias ? ▫ 10-24-2005 02:17 PM - 38 replies
▫ Long Tail and Local feedback ▫ 10-24-2005 01:10 PM - 19 replies
▫ I look for EAR 859 pictures. ▫ 10-24-2005 11:16 AM - 2 replies
▫ Designing a simple tube opamp? ▫ 10-24-2005 02:47 AM - 1 reply
▫ Difference between Hammond 200 and 300 series ▫ 10-23-2005 08:22 PM - 2 replies
▫ Ultrapath Cap ▫ 10-23-2005 06:25 PM - 1 reply
▫ where to find 600v 18awg wire?? ▫ 10-23-2005 03:04 PM - 13 replies
▫ Suggested power supply B+? ▫ 10-23-2005 02:19 PM - 1 reply
▫ Variable Impedence Mic Preamp ▫ 10-23-2005 01:28 PM - 1 reply
▫ Help me stop my preamp from farting! ▫ 10-23-2005 02:20 AM - 14 replies
▫ Just bought some of those Russian paper/oil caps off of ebay ▫ 10-22-2005 03:51 PM - 31 replies
▫ The Valhalla power amplifier project ▫ 10-22-2005 12:59 PM - 26 replies
▫ help! EL84's dying ▫ 10-22-2005 03:16 AM - 5 replies
▫ Could check this pentode-mu stage thingy for me (disclaimer* it is for a gutar amp) ▫ 10-22-2005 02:48 AM - 8 replies
▫ ASC Polypropylene And Oil Capacitors ▫ 10-21-2005 09:50 PM - 11 replies
▫ pots... log or linear? ▫ 10-21-2005 07:15 PM - 2 replies
▫ Guitar Amp Hum Question ▫ 10-21-2005 03:06 PM - 5 replies
▫ Cracking sound through speakers. ▫ 10-21-2005 01:03 PM - 5 replies
▫ EL84-PP - Why just 5W? ▫ 10-21-2005 08:27 AM - 25 replies
▫ Brook12a schematics... ▫ 10-21-2005 12:56 AM - 8 replies
▫ LongTailedPair gain -> how to calculate? ▫ 10-20-2005 10:59 PM - 13 replies
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