| Tubes - Showing threads 1401 to 1600 of 11912 available |
▫ K-502 How to select a potentiometer ▫ 03-15-2008 07:37 AM - 1 reply
▫ What are these Christmas light things? ▫ 03-15-2008 03:42 AM - 11 replies
▫ a CHEAP integrated tube amp kit-anybody? ▫ 03-15-2008 02:22 AM - 0 replies
▫ My amp is acting like a transducer!? ▫ 03-15-2008 01:55 AM - 9 replies
▫ Transformer current question ▫ 03-14-2008 11:40 PM - 6 replies
▫ Brimar date codes? ▫ 03-14-2008 10:45 PM - 0 replies
▫ Home made SE 300B amp ▫ 03-14-2008 09:54 PM - 12 replies
▫ Parallel Push Pull 6AS7 or 6080 ▫ 03-14-2008 06:16 PM - 29 replies
▫ random crackle ? (McMartin MA-20) ▫ 03-14-2008 05:22 PM - 3 replies
▫ KT88 filament failure - twice on same socket ▫ 03-14-2008 03:37 PM - 8 replies
▫ Solid State Regulator for tube amp ▫ 03-14-2008 02:06 PM - 48 replies
▫ Proposed screen-drive amp design... comments, please? ▫ 03-14-2008 01:58 PM - 36 replies
▫ SimpleSE PCB out of stock ▫ 03-14-2008 02:43 AM - 26 replies
▫ terraplane 300B ▫ 03-13-2008 09:07 PM - 6 replies
▫ Any good explanation of Passive EQ Filters?? ▫ 03-13-2008 09:07 PM - 4 replies
▫ Sun Audio transformers ▫ 03-13-2008 08:20 PM - 9 replies
▫ Vacuum State RTP5. ▫ 03-13-2008 07:52 PM - 4 replies
▫ Schematics for Audio Innovations s1000 pre ▫ 03-13-2008 03:34 PM - 0 replies
▫ Tube amp for newbye ▫ 03-13-2008 03:34 PM - 11 replies
▫ 3C24SE amp... ▫ 03-13-2008 02:45 PM - 10 replies
▫ Meixing MingDa MC767-RD ▫ 03-13-2008 02:14 PM - 10 replies
▫ confusing transformer connections ▫ 03-13-2008 03:07 AM - 0 replies
▫ Have to mod K-502 to 4Ohms from 8 ▫ 03-13-2008 02:51 AM - 1 reply
▫ SOund of 3B28 vs. 866A ▫ 03-13-2008 01:55 AM - 4 replies
▫ S3E Vacuum Tube ▫ 03-12-2008 11:29 PM - 12 replies
▫ Tube audio & "3 dimensionality" ▫ 03-12-2008 10:27 PM - 0 replies
▫ Darling monoblocks ▫ 03-12-2008 08:38 PM - 3 replies
▫ Testing 350B with B & K 747A ▫ 03-12-2008 07:47 PM - 1 reply
▫ Interstage transformer for balanced amp question ▫ 03-12-2008 06:51 PM - 3 replies
▫ Filament transformer questions ▫ 03-12-2008 05:10 PM - 1 reply
▫ dBm or dBV Audio Voltmeter ▫ 03-12-2008 04:15 PM - 16 replies
▫ VTL MB250 Signature monoblock Manual.. ▫ 03-12-2008 02:27 PM - 5 replies
▫ Choke phase spliter ▫ 03-12-2008 01:16 PM - 22 replies
▫ Output transformer DC resistance.. ▫ 03-12-2008 01:12 PM - 6 replies
▫ Chassis layout? ▫ 03-12-2008 11:12 AM - 0 replies
▫ Jolida schematic questions ▫ 03-12-2008 03:22 AM - 13 replies
▫ Tube Phono preamp kit? ▫ 03-11-2008 09:33 PM - 4 replies
▫ Does size really matter - SE Output ▫ 03-11-2008 09:25 PM - 19 replies
▫ 437A testing ▫ 03-11-2008 06:31 PM - 0 replies
▫ Tube Amp reverb noise, no vibrato intensity, unknown model. Help please ▫ 03-11-2008 10:21 AM - 0 replies
▫ What to do with a 5k output transfomer? ▫ 03-11-2008 06:16 AM - 17 replies
▫ adapter? ▫ 03-11-2008 03:05 AM - 2 replies
▫ Studer 52 ▫ 03-10-2008 09:31 PM - 3 replies
▫ Safety ground question ▫ 03-10-2008 02:23 PM - 13 replies
▫ Old PS questions (EL34 replacement), and any Aus people know BWD? ▫ 03-10-2008 10:36 AM - 0 replies
▫ Darling 1626 amp ▫ 03-10-2008 09:45 AM - 9 replies
▫ Blackheart 5 watt ▫ 03-10-2008 06:35 AM - 7 replies
▫ What is this tube amp ▫ 03-10-2008 02:30 AM - 2 replies
▫ Extry, Extry, Blind Squirrel Finds Nut -sequence ▫ 03-09-2008 11:43 PM - 15 replies
▫ Why is distortion harmonic? ▫ 03-09-2008 07:43 PM - 48 replies
▫ Source for OPT ▫ 03-09-2008 04:18 PM - 6 replies
▫ EL34 to RL12P35 converting ▫ 03-09-2008 03:54 PM - 0 replies
▫ calculating total current draw ▫ 03-09-2008 10:32 AM - 3 replies
▫ Allied Radio (Knight) KA-55 schematic ▫ 03-09-2008 06:09 AM - 8 replies
▫ 6F6G Amplifier ▫ 03-09-2008 03:58 AM - 39 replies
▫ Tubelab SE monoblock? ▫ 03-09-2008 03:07 AM - 8 replies
▫ good book/article about using oscilloscopes? ▫ 03-09-2008 01:18 AM - 8 replies
▫ how to attach photos ▫ 03-08-2008 09:36 PM - 2 replies
▫ Is 450V the max of triode strapped 6l6gc ▫ 03-08-2008 09:30 PM - 7 replies
▫ Separate power supply - Umbilical Cord ▫ 03-08-2008 08:23 PM - 22 replies
▫ tube amp being weird -- any ideas ▫ 03-08-2008 05:15 PM - 13 replies
▫ need to discharge psu safely ▫ 03-08-2008 04:24 PM - 6 replies
▫ Jadis DA7/defy power amplifier mods ▫ 03-08-2008 02:38 PM - 14 replies
▫ 5.3v on 6SN7 filament? ▫ 03-08-2008 02:31 PM - 4 replies
▫ The Valve Wizard ▫ 03-08-2008 03:33 AM - 24 replies
▫ Mercury vapor rectifier tube question ▫ 03-08-2008 01:06 AM - 9 replies
▫ An Indiana Yankee in Putin's court. ▫ 03-08-2008 12:40 AM - 4 replies
▫ Switching over to a fixed bias ▫ 03-08-2008 12:14 AM - 2 replies
▫ Dynamic load line analysis using music and speaker load ▫ 03-07-2008 08:47 PM - 0 replies
▫ Capacitance in PSU ▫ 03-07-2008 07:03 PM - 28 replies
▫ preamp line ctt ▫ 03-07-2008 04:32 PM - 1 reply
▫ Genalex KT-88 reissue ▫ 03-07-2008 03:20 PM - 6 replies
▫ Combine EF80 with EL84 ▫ 03-07-2008 02:12 PM - 26 replies
▫ 2A3 maximum plate voltage ▫ 03-07-2008 01:49 PM - 11 replies
▫ Amplifier Response Stability & All That. ▫ 03-07-2008 11:07 AM - 17 replies
▫ 100k linear pots, any idea? ▫ 03-07-2008 07:14 AM - 4 replies
▫ 6550, 6L6, or 6V6?? ▫ 03-06-2008 10:49 PM - 2 replies
▫ grid-stopper resistor ▫ 03-06-2008 10:25 PM - 2 replies
▫ cathode bypass caps suggestions please for newbie ▫ 03-06-2008 08:14 PM - 8 replies
▫ Need Schematic-H&K B.A.T.T. ▫ 03-06-2008 04:39 PM - 0 replies
▫ 6EJ7 phono preamp? ▫ 03-06-2008 01:37 PM - 1 reply
▫ Impressions of the Ella, a pp EL34 ▫ 03-06-2008 10:46 AM - 2 replies
▫ 30L15 / PCC805 - What can I use them for? ▫ 03-06-2008 09:45 AM - 4 replies
▫ Ultra Cheap transformers? ▫ 03-06-2008 07:37 AM - 8 replies
▫ Push-pull output impedance ▫ 03-06-2008 12:57 AM - 6 replies
▫ Tube amp cost ▫ 03-05-2008 10:43 PM - 5 replies
▫ 830b ▫ 03-05-2008 10:24 PM - 0 replies
▫ Leak Tl/12+ ▫ 03-05-2008 09:30 PM - 4 replies
▫ Toroid Trafo as choke ▫ 03-05-2008 07:19 PM - 4 replies
▫ in search of a 3c33 dual triode..... ▫ 03-05-2008 06:44 PM - 0 replies
▫ Question about MiniBlok II Schematic ▫ 03-05-2008 05:34 PM - 2 replies
▫ Wavebourn Alligator amplifier ▫ 03-05-2008 05:12 PM - 24 replies
▫ Best Tube Testers? ▫ 03-05-2008 04:28 PM - 10 replies
▫ Rusky version EF86 ▫ 03-05-2008 02:43 PM - 15 replies
▫ Melos SHA Gold Issue ▫ 03-05-2008 01:37 PM - 6 replies
▫ Tubelab Simple SE & Edcor ▫ 03-05-2008 01:04 PM - 2 replies
▫ Erratic tube activity ▫ 03-05-2008 07:55 AM - 4 replies
▫ Bogen Front End ▫ 03-05-2008 03:21 AM - 2 replies
▫ Maybe a Ruskie ▫ 03-05-2008 02:03 AM - 7 replies
▫ Another kind of hybrid ▫ 03-04-2008 10:18 PM - 202 replies
▫ Output impedance ▫ 03-04-2008 08:20 PM - 8 replies
▫ GU29 Amp. Schematic - Audioromy or similar ▫ 03-04-2008 07:24 PM - 4 replies
▫ Power On Indicator Light ▫ 03-04-2008 01:33 PM - 4 replies
▫ Newbie Aikido power supply question ▫ 03-04-2008 03:51 AM - 14 replies
▫ Se output transformer question ▫ 03-04-2008 01:08 AM - 5 replies
▫ Aikido hum ▫ 03-03-2008 06:18 PM - 24 replies
▫ Output transformer replacement... Worth it? ▫ 03-03-2008 03:16 PM - 9 replies
▫ Almarro A205A schematic ▫ 03-03-2008 12:56 PM - 0 replies
▫ Valves World question ▫ 03-03-2008 12:54 PM - 1 reply
▫ diodes before plate load ▫ 03-03-2008 11:12 AM - 2 replies
▫ power tubes..newbie question. ▫ 03-03-2008 10:17 AM - 3 replies
▫ Need Help 12BH7 Tube test. ▫ 03-03-2008 09:58 AM - 1 reply
▫ Tube Virgin ▫ 03-03-2008 09:46 AM - 17 replies
▫ Chassis layout help ▫ 03-03-2008 04:15 AM - 4 replies
▫ Maybe this is why 300b's dont last as long ▫ 03-02-2008 10:20 PM - 6 replies
▫ High-voltage bench power supply ▫ 03-02-2008 09:48 PM - 5 replies
▫ Ebay Tube amp buy disaster ▫ 03-02-2008 07:49 PM - 55 replies
▫ HK cheap SE OTPs...hmmm ▫ 03-02-2008 12:38 PM - 10 replies
▫ Modded ST70 Done ▫ 03-02-2008 07:42 AM - 5 replies
▫ bad buzz in an EL34 amp ▫ 03-02-2008 05:13 AM - 8 replies
▫ Another radio->Gtr amp mod question ▫ 03-01-2008 10:27 PM - 3 replies
▫ yaoin ▫ 03-01-2008 10:18 PM - 105 replies
▫ What is the safest method to plot characteristic curves without ruining the tubes ▫ 03-01-2008 09:17 PM - 1 reply
▫ Screen grid zeners; which? ▫ 03-01-2008 07:57 PM - 37 replies
▫ Another one I don't get ▫ 03-01-2008 06:15 PM - 4 replies
▫ 6BG6GA adapter instructions needed ▫ 03-01-2008 04:57 PM - 4 replies
▫ got an EC8020 ▫ 03-01-2008 12:07 PM - 1 reply
▫ Identifying these Valvos. ▫ 03-01-2008 11:05 AM - 2 replies
▫ Converting tube guitar amp to Hi-Fi amp ▫ 03-01-2008 09:32 AM - 10 replies
▫ 21kW audio power amp? ▫ 03-01-2008 02:05 AM - 11 replies
▫ Quicksilver conversion ▫ 02-29-2008 08:16 PM - 5 replies
▫ DC PSU for both 6.3vdc and 5vdc from one 6.3vac transformer? ▫ 02-29-2008 04:47 PM - 0 replies
▫ Hammond Transformers in Montreal/Canada ▫ 02-29-2008 04:01 PM - 6 replies
▫ Can't find data for 8624 ▫ 02-29-2008 03:30 PM - 3 replies
▫ Any advice on modifying a 2A3 SET amp to parafeed? ▫ 02-29-2008 02:50 PM - 4 replies
▫ Output impedance for non published PP configuration ▫ 02-29-2008 12:43 PM - 18 replies
▫ Grid stopper resistor required (KT66)? ▫ 02-29-2008 11:47 AM - 24 replies
▫ Ask Jan First OPTs ▫ 02-29-2008 11:01 AM - 6 replies
▫ For what are high mu triodes still useful? ▫ 02-28-2008 10:55 PM - 8 replies
▫ CCa "low noise"? ▫ 02-28-2008 09:46 PM - 0 replies
▫ Upgrading my Audio Research VT 130 SE Tube amp ▫ 02-28-2008 12:42 PM - 16 replies
▫ 100ma FSD voltmeter ▫ 02-28-2008 10:32 AM - 3 replies
▫ Conqueror schematic ▫ 02-28-2008 09:32 AM - 2 replies
▫ Bassman 135 OT ▫ 02-28-2008 12:30 AM - 0 replies
▫ Ground reference ▫ 02-27-2008 09:28 PM - 8 replies
▫ Overdriven Capacitor? ▫ 02-27-2008 06:34 PM - 12 replies
▫ Tone Controls? ▫ 02-27-2008 05:57 PM - 2 replies
▫ My first "from scratch" design, SE KT88.......... ▫ 02-27-2008 05:20 PM - 9 replies
▫ OPTs of questionable utility ▫ 02-27-2008 03:40 PM - 19 replies
▫ 6336 as a Rectifier ▫ 02-27-2008 10:10 AM - 10 replies
▫ tube power supply ▫ 02-27-2008 10:01 AM - 10 replies
▫ Anyone read Russian? ▫ 02-27-2008 05:19 AM - 3 replies
▫ PSU - dropping resistors? ▫ 02-27-2008 04:02 AM - 4 replies
▫ pre-amp design, just curious about your thoughts here. ▫ 02-27-2008 01:28 AM - 4 replies
▫ Using isolation transformer as a PSU transformer??? ▫ 02-27-2008 12:46 AM - 10 replies
▫ KT66 loosing its getter ▫ 02-26-2008 10:53 PM - 2 replies
▫ Mullard schematic? ▫ 02-26-2008 08:35 PM - 8 replies
▫ Mikale Abdellah SE KT88 B+ voltage? ▫ 02-26-2008 06:57 PM - 7 replies
▫ Layout software ▫ 02-26-2008 04:46 PM - 2 replies
▫ Does anyone have any schematics for a parafeed SET amp? ▫ 02-26-2008 03:18 PM - 17 replies
▫ music angel kt88 ▫ 02-26-2008 03:13 PM - 1 reply
▫ CB radio ▫ 02-26-2008 02:44 PM - 25 replies
▫ The end of the 300b Dream? ▫ 02-26-2008 10:17 AM - 15 replies
▫ Voltage divider to reduce 6v dc to 2vdc ▫ 02-26-2008 09:58 AM - 5 replies
▫ oil injected rca cables? ▫ 02-26-2008 01:38 AM - 28 replies
▫ Modification..... ▫ 02-25-2008 10:06 PM - 3 replies
▫ CHOKY'S EC8010 preamp ▫ 02-25-2008 08:31 PM - 3 replies
▫ Using a Grid Choke On the 2A3 when the input/driver is a Pentode? ▫ 02-25-2008 06:45 PM - 3 replies
▫ tube checker ▫ 02-25-2008 03:56 PM - 1 reply
▫ 300B tube going dead after a few months ▫ 02-25-2008 02:29 PM - 7 replies
▫ KT88 se build NO GAIN please help ▫ 02-25-2008 10:33 AM - 1 reply
▫ mengyue mini valve amplifier ▫ 02-25-2008 08:48 AM - 5 replies
▫ Preamp suggest, please. ▫ 02-25-2008 07:47 AM - 18 replies
▫ Problem: Severe power transformer and choke vibration ▫ 02-25-2008 06:34 AM - 4 replies
▫ Amp Hack schematic questions ▫ 02-25-2008 03:51 AM - 12 replies
▫ This circuit ok? ▫ 02-25-2008 01:02 AM - 6 replies
▫ Tube ID anyone? ▫ 02-25-2008 12:33 AM - 2 replies
▫ Posted new books and data ▫ 02-24-2008 10:58 PM - 4 replies
▫ The sound of a failing tube rectifier? ▫ 02-24-2008 10:21 PM - 19 replies
▫ Proyect with PL36 and N2P (Russian ECC83) ▫ 02-24-2008 09:04 PM - 0 replies
▫ 300b LTspice model with grid current? ▫ 02-24-2008 07:08 PM - 0 replies
▫ Tri-amp using 2a3 SETs ▫ 02-24-2008 05:54 PM - 13 replies
▫ TentLabs Directly Heated Tubes Supply ▫ 02-24-2008 05:36 PM - 19 replies
▫ Bevois Valley Design Question ▫ 02-24-2008 05:01 PM - 32 replies
▫ Kofi Annan in: "Oscillation Blues" ▫ 02-24-2008 02:42 PM - 5 replies
▫ Common mode choke model ▫ 02-24-2008 10:54 AM - 4 replies
▫ UTC 20 Watt Amp - Any Experience? ▫ 02-24-2008 07:51 AM - 10 replies
▫ 6cz5s for EL84s ▫ 02-24-2008 07:39 AM - 2 replies
▫ The 120Hz Blues... ▫ 02-24-2008 02:25 AM - 2 replies
▫ Amplitrex AT-1000 Tube Tester ▫ 02-24-2008 01:57 AM - 4 replies
▫ audio amp. versus guitar amp ▫ 02-23-2008 10:14 PM - 20 replies
▫ Grounding points.... ▫ 02-23-2008 08:25 PM - 2 replies
▫ Cap values for CLC filter ▫ 02-23-2008 07:49 PM - 5 replies
▫ Tube glows red hot, blows fuse ▫ 02-23-2008 05:19 PM - 17 replies
▫ Independent Bias Adjust for Each Tube? ▫ 02-23-2008 04:12 PM - 4 replies
▫ Mesa Boogie Maverick schematic any1? ▫ 02-23-2008 07:52 AM - 1 reply
▫ KT-88 from a book ▫ 02-23-2008 03:34 AM - 20 replies
▫ Modelling PSU?! ▫ 02-22-2008 08:22 PM - 24 replies
▫ DD amp for ESLs... ▫ 02-22-2008 07:24 PM - 49 replies
▫ Today's tube manufacters, best is? ▫ 02-22-2008 03:46 PM - 29 replies
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