| Tubes - Showing threads 7601 to 7800 of 11691 available |
▫ Pentode models ▫ 05-25-2005 10:10 PM - 6 replies
▫ Good or bad to use parallel capacitors of same value in signal path... ▫ 05-25-2005 07:11 AM - 1 reply
▫ Urgent: Need Help on Schematics (Tube Pre-Amplifier) ▫ 05-25-2005 06:24 AM - 1 reply
▫ ASL wave 8 mods ▫ 05-24-2005 10:08 PM - 2 replies
▫ lectron jh 60 help---------------- ▫ 05-24-2005 08:20 PM - 0 replies
▫ crown tube poweramp ▫ 05-24-2005 08:07 PM - 7 replies
▫ Alan kimmel mu stage article ▫ 05-24-2005 05:12 PM - 1 reply
▫ What would you do with this amp? ▫ 05-24-2005 03:38 PM - 8 replies
▫ tube software ▫ 05-24-2005 03:13 AM - 3 replies
▫ Simple Valve Preamplifier ▫ 05-24-2005 03:00 AM - 15 replies
▫ Current sourced heaters in a CF ▫ 05-23-2005 09:20 PM - 21 replies
▫ Tubes and music styles ▫ 05-23-2005 09:17 PM - 8 replies
▫ Cheap SE EL84 ▫ 05-23-2005 07:06 PM - 9 replies
▫ Making a living out of tubes? (A little off-topic) ▫ 05-23-2005 12:07 PM - 12 replies
▫ EL84 matched pairs ▫ 05-23-2005 06:26 AM - 12 replies
▫ Tango XE20S voltage rating? ▫ 05-23-2005 05:23 AM - 21 replies
▫ power transformer heat ▫ 05-23-2005 03:11 AM - 6 replies
▫ Tubes ▫ 05-23-2005 01:33 AM - 7 replies
▫ Taylor 845 ▫ 05-22-2005 08:19 PM - 1 reply
▫ AVO CT-160 Tube Tester - how to remove knobs?? - please help ▫ 05-22-2005 02:47 PM - 10 replies
▫ The DIYHifiSupply.com Joplin amplifier Kit ▫ 05-22-2005 09:58 AM - 7 replies
▫ Berning P-1 Preamp ▫ 05-22-2005 03:04 AM - 8 replies
▫ Which tube for OPT 7,5k SE low watts??? ▫ 05-21-2005 09:17 PM - 13 replies
▫ help me with this puzzle... ▫ 05-21-2005 06:39 PM - 3 replies
▫ Used Tube Amps, second life.. ▫ 05-21-2005 03:06 PM - 17 replies
▫ Univox 1501 Fried Resistors ▫ 05-20-2005 12:52 PM - 8 replies
▫ It makes me wonder ... ▫ 05-20-2005 09:01 AM - 17 replies
▫ Tubes operating in horizontal position ▫ 05-20-2005 07:02 AM - 10 replies
▫ Dewald radio N-803b keep or use parts? ▫ 05-20-2005 02:43 AM - 2 replies
▫ Ongaku ▫ 05-19-2005 08:58 PM - 15 replies
▫ PSU Design question ▫ 05-19-2005 08:28 PM - 21 replies
▫ Primary reactance of a parafeed OPT ▫ 05-19-2005 07:13 PM - 12 replies
▫ Info on IIT interstage trafos? ▫ 05-19-2005 05:55 PM - 6 replies
▫ vt25/10-Y or 45 tube ▫ 05-19-2005 04:19 PM - 5 replies
▫ 2a3, single plate-double plate? ▫ 05-19-2005 02:52 PM - 5 replies
▫ Preferred tube? KT88 vs. EL34 ▫ 05-19-2005 02:10 PM - 2 replies
▫ You may laugh..but don't waste your time trying to dissuade me. 300B preamp. ▫ 05-19-2005 08:59 AM - 56 replies
▫ Parallelling power supply chokes??? ▫ 05-18-2005 04:16 PM - 4 replies
▫ Sherwood S7000 ▫ 05-18-2005 01:21 PM - 2 replies
▫ please explain plate curves ▫ 05-18-2005 10:38 AM - 4 replies
▫ Triode connected SV6550C with 500V HT ▫ 05-18-2005 10:32 AM - 9 replies
▫ KT88 SE schematic wanted. ▫ 05-18-2005 10:13 AM - 9 replies
▫ 6SN7 based tube buffer ▫ 05-18-2005 05:46 AM - 17 replies
▫ hum measurement ▫ 05-17-2005 09:16 PM - 10 replies
▫ Load of tubes to liquidate ▫ 05-17-2005 06:20 PM - 8 replies
▫ Unhappy with the Lilliput design ▫ 05-17-2005 11:36 AM - 18 replies
▫ Halving OPT's pri.imp. by connecting 8ohm load to 16ohm tap - Good/Bad? ▫ 05-17-2005 09:56 AM - 16 replies
▫ Tube Technology Prophet ▫ 05-17-2005 09:36 AM - 0 replies
▫ Cathode Feedback from Secondary for PP Amp ▫ 05-17-2005 06:18 AM - 16 replies
▫ Zenith Amplifier ▫ 05-16-2005 10:37 PM - 4 replies
▫ Dynaco SCA-35 fixer-upper ▫ 05-16-2005 07:59 PM - 7 replies
▫ Multiple primary power transformer question ▫ 05-16-2005 07:42 PM - 7 replies
▫ Sizing a Regulator ▫ 05-16-2005 06:35 PM - 5 replies
▫ will laziness burn my amp down?! ▫ 05-16-2005 07:15 AM - 27 replies
▫ resistors of a lower power rating ▫ 05-15-2005 03:50 AM - 2 replies
▫ wavy vibrato-like sound when amp cranked ▫ 05-15-2005 03:44 AM - 4 replies
▫ Rh34se? ▫ 05-15-2005 01:13 AM - 2 replies
▫ Ef86, 6n1p & 845pp ▫ 05-14-2005 07:58 PM - 3 replies
▫ HYBRID POWER AMPLIFIER - please help! ▫ 05-14-2005 04:32 PM - 8 replies
▫ 6528 Se ▫ 05-14-2005 07:55 AM - 9 replies
▫ single ended HiFi Regal stereo tube amplifier ▫ 05-13-2005 02:29 PM - 20 replies
▫ Matisse Line Amp ▫ 05-13-2005 11:29 AM - 10 replies
▫ changing longtail ▫ 05-13-2005 10:18 AM - 12 replies
▫ What do you think?????? ▫ 05-13-2005 07:45 AM - 8 replies
▫ The amplifier itself whines ▫ 05-13-2005 06:39 AM - 14 replies
▫ DIY repair- replacing capacitors ▫ 05-13-2005 06:09 AM - 5 replies
▫ Benefits of 845B ▫ 05-13-2005 04:47 AM - 14 replies
▫ Counterpoint Preamp Modifications ▫ 05-13-2005 01:47 AM - 1 reply
▫ Humming Sovtek EF86 ▫ 05-12-2005 05:16 PM - 4 replies
▫ Output Transformers ▫ 05-12-2005 04:27 PM - 2 replies
▫ RIAA phono stage ▫ 05-12-2005 03:25 PM - 10 replies
▫ The cathode FeedBack in Push-Pull amp ▫ 05-12-2005 02:26 PM - 3 replies
▫ What's a Field Coil Amplifier? ▫ 05-12-2005 12:01 PM - 9 replies
▫ Need help for ampeg tube amp transformers ... ▫ 05-12-2005 12:33 AM - 3 replies
▫ HF filter inductors for signal path ▫ 05-11-2005 10:07 PM - 3 replies
▫ Different tube options for DCMB driver stage? ▫ 05-11-2005 09:29 AM - 6 replies
▫ Crowhurst paper on output xformer search ▫ 05-11-2005 07:37 AM - 14 replies
▫ Tamura inputs trans used as linestage out ▫ 05-11-2005 05:28 AM - 2 replies
▫ Seperate Amp for center channel ▫ 05-11-2005 03:38 AM - 1 reply
▫ Look for UL41 PP Structure!! ▫ 05-10-2005 06:35 PM - 2 replies
▫ Photoelectric valves? ▫ 05-10-2005 02:09 PM - 7 replies
▫ Bell Carrillon tube amp 6V6 ▫ 05-10-2005 06:31 AM - 2 replies
▫ Looking for Old Elector Tube Preamplifier article ▫ 05-10-2005 05:17 AM - 24 replies
▫ Yamamoto Sound Craft A-08 Amplifier ▫ 05-09-2005 12:14 PM - 0 replies
▫ Wanted Radford MA-15 ▫ 05-09-2005 11:07 AM - 6 replies
▫ Beyond SET and ParaFeed.... Complementary Current Triode ▫ 05-08-2005 09:04 PM - 61 replies
▫ Too much gain ▫ 05-08-2005 04:17 PM - 6 replies
▫ 2 To 3 Prong Conversion ▫ 05-08-2005 12:38 AM - 3 replies
▫ 6c33 Set ▫ 05-07-2005 11:29 PM - 0 replies
▫ Svetlana MVSZ ---> cheat?? ▫ 05-07-2005 08:16 PM - 17 replies
▫ separation of phono power supply for marantz m7 clone ▫ 05-07-2005 07:13 PM - 0 replies
▫ 300b Circuit Mod. ▫ 05-07-2005 04:34 PM - 11 replies
▫ james transformers ▫ 05-07-2005 04:29 AM - 6 replies
▫ ecc preamp schematics please!!! ▫ 05-06-2005 11:06 PM - 1 reply
▫ 845B problem ▫ 05-06-2005 07:17 PM - 5 replies
▫ 150W Garage sale find. ▫ 05-06-2005 12:21 PM - 23 replies
▫ speakers for class A ? ▫ 05-06-2005 10:35 AM - 1 reply
▫ Power Tx core should ground? ▫ 05-06-2005 10:35 AM - 3 replies
▫ First try, Would some one look over. ▫ 05-06-2005 05:13 AM - 10 replies
▫ Global Feedback in Push Pull Amps ▫ 05-06-2005 04:14 AM - 14 replies
▫ Heater voltage circuit change......why please ▫ 05-06-2005 12:14 AM - 5 replies
▫ EICO 147A operators manual ▫ 05-05-2005 11:09 PM - 0 replies
▫ Please Help My Tube Microphones! ▫ 05-05-2005 06:13 PM - 4 replies
▫ Magnetic Circuit Gurus Needed ▫ 05-05-2005 05:56 PM - 9 replies
▫ Tube Blues ▫ 05-05-2005 04:27 PM - 2 replies
▫ end of tube ▫ 05-05-2005 01:44 PM - 21 replies
▫ What is meant by 'Extended Cut-off'? ▫ 05-05-2005 11:03 AM - 5 replies
▫ How is it possible? ▫ 05-04-2005 07:55 PM - 0 replies
▫ best long life for my tube ▫ 05-04-2005 04:08 PM - 2 replies
▫ My first tube amp design...check it out. ▫ 05-03-2005 04:50 PM - 8 replies
▫ Tube driver for a SS power amplifier ▫ 05-03-2005 04:39 PM - 21 replies
▫ HK & world: with Cayin, are tube kits still good value (apart from learning)? ▫ 05-03-2005 10:22 AM - 11 replies
▫ www.thetubecenter.com = reliable? ▫ 05-03-2005 07:19 AM - 4 replies
▫ Lp values for guitar amp OT ▫ 05-03-2005 06:37 AM - 7 replies
▫ what do I replace...? ▫ 05-03-2005 01:58 AM - 10 replies
▫ Rectifiers: Tube vs Solid state.. ▫ 05-03-2005 01:00 AM - 26 replies
▫ What can I do with 3Q4 Pentode tubes? ▫ 05-02-2005 10:21 PM - 2 replies
▫ DIY Powdered Core Progress Report ▫ 05-02-2005 08:36 PM - 15 replies
▫ PP output transformer grounded or not ? ▫ 05-02-2005 12:07 PM - 7 replies
▫ Bias supply question ▫ 05-02-2005 11:33 AM - 0 replies
▫ Minimum filament voltage for 300B ▫ 05-02-2005 09:48 AM - 32 replies
▫ Is it ok to combine output transformers? ▫ 05-02-2005 02:55 AM - 7 replies
▫ JE labs 2A3 evaluation ▫ 05-02-2005 12:02 AM - 28 replies
▫ 6sn7,6h30,6c33c ? ▫ 05-01-2005 07:56 PM - 4 replies
▫ signal ground and earth ground ▫ 05-01-2005 07:08 PM - 9 replies
▫ Recommended 6SN7 and 6SL7 ▫ 05-01-2005 03:02 PM - 8 replies
▫ Question about BAT VK 75 ▫ 05-01-2005 12:38 PM - 0 replies
▫ Please,a) cause of high pitched hum, b)DC wires twisted or not ▫ 05-01-2005 08:11 AM - 3 replies
▫ What kind of tube is this ▫ 05-01-2005 06:55 AM - 10 replies
▫ Tube Identification Help Please ▫ 05-01-2005 03:47 AM - 11 replies
▫ Balanced Load Design ▫ 04-30-2005 06:33 PM - 28 replies
▫ "lift off " or "Houston we have a problem" ▫ 04-30-2005 02:49 AM - 16 replies
▫ Anyone wound SE transformer for 6c33c-b? ▫ 04-29-2005 11:14 PM - 75 replies
▫ EL802 driving a 845 ? ▫ 04-29-2005 04:51 PM - 4 replies
▫ Diodes in series and hybrids ▫ 04-29-2005 04:38 PM - 10 replies
▫ Vacuum tube modeling software - beta testers wanted ▫ 04-29-2005 07:29 AM - 75 replies
▫ Parallel Push Pull Drivers ▫ 04-29-2005 07:28 AM - 14 replies
▫ 6V6 in triode connect mode ▫ 04-29-2005 03:29 AM - 13 replies
▫ OPT winding orientation ▫ 04-29-2005 03:04 AM - 2 replies
▫ 6.3v Heater Regulator Schematic ▫ 04-29-2005 01:42 AM - 3 replies
▫ An Important Read ▫ 04-28-2005 03:20 PM - 5 replies
▫ Did a real nice find ▫ 04-28-2005 02:40 PM - 23 replies
▫ New guy with DIY ground ?s--yes, even after searching:D ▫ 04-28-2005 01:59 PM - 4 replies
▫ 5u4g vs 5u4gb ▫ 04-28-2005 12:44 AM - 3 replies
▫ Tube amp volume fluctuation ▫ 04-27-2005 10:07 PM - 3 replies
▫ Bad tube? ▫ 04-27-2005 08:55 PM - 13 replies
▫ 1626's watt? ▫ 04-27-2005 08:08 PM - 5 replies
▫ fellow Hawkeye lookin' for cadman! ▫ 04-27-2005 06:39 PM - 0 replies
▫ Shuagang 2A3C ▫ 04-27-2005 05:24 PM - 1 reply
▫ Parallel SE vs. Single SE Output Question ▫ 04-27-2005 03:17 PM - 19 replies
▫ PP OPT Core dimension ▫ 04-27-2005 12:59 PM - 4 replies
▫ Confirmation of Primary Impedance? ▫ 04-27-2005 03:55 AM - 7 replies
▫ What does a hole on the guide pin of an octal base represent? ▫ 04-27-2005 01:57 AM - 0 replies
▫ Sepp? ▫ 04-26-2005 03:40 AM - 4 replies
▫ 6AS7 lowpower amp? ▫ 04-25-2005 09:06 PM - 1 reply
▫ Dual Mono PSU with shared earth.. ▫ 04-25-2005 08:43 PM - 28 replies
▫ Breadboard 6C33C-B S.E.T ▫ 04-25-2005 03:22 PM - 3 replies
▫ audionote schematic wanted !! ▫ 04-25-2005 02:42 AM - 27 replies
▫ DIY Extreme performance Output Transformers - AMSOL ▫ 04-24-2005 04:18 PM - 15 replies
▫ Dressing up Ampex 2012 tube amps ▫ 04-24-2005 06:47 AM - 2 replies
▫ About McIntosh C22 power transformer ▫ 04-24-2005 06:13 AM - 1 reply
▫ it is almost alive ▫ 04-23-2005 11:48 AM - 5 replies
▫ Ef86, 6H30PI and 2 EL34 ▫ 04-22-2005 07:53 PM - 2 replies
▫ 7868 tubes in Bogen CHB100 ▫ 04-22-2005 05:36 PM - 6 replies
▫ DIY Powdered Iron Tranny Core ▫ 04-22-2005 05:36 PM - 74 replies
▫ Which BG cap best suited for cathode bypass? ▫ 04-22-2005 04:22 PM - 10 replies
▫ Oscillation question- pre or power? ▫ 04-22-2005 12:58 PM - 12 replies
▫ changing (de)coupling cap values ▫ 04-22-2005 11:40 AM - 14 replies
▫ opamp driving tubes ▫ 04-22-2005 09:41 AM - 61 replies
▫ tube 833a ▫ 04-22-2005 09:00 AM - 0 replies
▫ My latest Project (nightmare) ▫ 04-22-2005 04:04 AM - 14 replies
▫ output transformer primary imp. calculation ▫ 04-22-2005 03:41 AM - 4 replies
▫ rogers cadet mk3 hummm..... ▫ 04-21-2005 10:55 PM - 1 reply
▫ Someone help: SE shematic with GK71? ▫ 04-21-2005 03:21 PM - 18 replies
▫ Calling Graham Ingle of black cat electronics ▫ 04-21-2005 11:25 AM - 3 replies
▫ Old Emerson Tube Radio... great find! ▫ 04-21-2005 07:39 AM - 7 replies
▫ Fender princeton/champ clone ▫ 04-21-2005 06:12 AM - 6 replies
▫ E810F in triode ▫ 04-20-2005 06:25 PM - 18 replies
▫ GZ37 replacement? ▫ 04-20-2005 05:05 PM - 4 replies
▫ Bias adjustment question ▫ 04-20-2005 01:18 PM - 20 replies
▫ 6W Self Inverting 6BQ5 Amp ▫ 04-20-2005 03:55 AM - 23 replies
▫ Inductance a problem with wirewound pots? ▫ 04-19-2005 10:51 PM - 3 replies
▫ Fun circuit with a 12ax7 (ecc83) ▫ 04-19-2005 03:52 PM - 7 replies
▫ want to do PP-GM70 ▫ 04-19-2005 03:06 PM - 44 replies
▫ spraying the guts of my amp... ▫ 04-19-2005 03:01 PM - 2 replies
▫ How to drop 10v from mains for 300b amp. ▫ 04-19-2005 02:45 PM - 2 replies
▫ SE Output Primary Impedence ▫ 04-19-2005 01:46 PM - 6 replies
▫ Different input valves for KT88 ▫ 04-19-2005 01:18 PM - 1 reply
▫ EL84/6BQ5 LUXMAN Amps ▫ 04-19-2005 10:40 AM - 0 replies
▫ Heresy? Replacing tube rectifier w/Weber Copper Cap ▫ 04-18-2005 08:07 PM - 20 replies
▫ Direct Coupled Choke-assisted Mu-stage ▫ 04-18-2005 09:29 AM - 1 reply
▫ Another 845 SE ▫ 04-18-2005 08:35 AM - 7 replies
▫ Is it possible - 6922 Active X-over running with ~ +/- 40V ? ▫ 04-18-2005 02:56 AM - 15 replies
▫ 12FQ8's ? ▫ 04-18-2005 02:46 AM - 8 replies
▫ my first tube site ▫ 04-17-2005 08:58 PM - 1 reply
▫ different measurements ▫ 04-17-2005 04:18 PM - 4 replies
▫ DIY Dyna MK 2's and using bottlehead C4S ▫ 04-17-2005 01:49 PM - 7 replies
▫ Elektor ECL86 RIAA Preamp ▫ 04-17-2005 12:01 PM - 20 replies
▫ ECC88 - upgrading from Teonex - Help ? ▫ 04-16-2005 11:13 PM - 14 replies
▫ B+ problem? ▫ 04-16-2005 09:23 PM - 17 replies
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