Audio Project Amplifier Speaker Loudspeaker Kit
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Tubes - Showing threads 8001 to 8200 of 12199 available
75% of rated max. current too high?06-12-2005 12:47 PM - 4 replies
ST shaped tube06-12-2005 12:18 PM - 7 replies
Tube Phono Pre of RJM06-12-2005 11:23 AM - 5 replies
how to determine P1 from P2 of a Push-pull transformer?06-12-2005 10:25 AM - 10 replies
fisher x100a06-12-2005 07:23 AM - 16 replies
Please review EL84M PP design before I order parts.06-12-2005 04:44 AM - 2 replies
Auction Gem Motorola? Go Figure!06-12-2005 01:56 AM - 4 replies
Darling amp plate voltage06-11-2005 07:10 PM - 14 replies
Sound quality of 6C4C is same with 2A3?06-11-2005 01:33 PM - 10 replies
6,3VAC to 6,3VDC06-11-2005 01:25 PM - 5 replies
EL84 push pull idea06-11-2005 10:45 AM - 20 replies
Marantz preamp clone for newbie?06-11-2005 08:33 AM - 8 replies
Can I use Philips TB2.5 /400 in a SE ampl.06-11-2005 08:12 AM - 4 replies
Microwave + Computer = Tube? [help!]06-11-2005 03:12 AM - 51 replies
Oil Capacitor DC vs. AC Voltage Rating06-10-2005 10:08 PM - 2 replies
Plate Choke Miller Capacitance06-10-2005 09:58 PM - 10 replies
Anyone interested in building an EAR 834P?06-10-2005 08:59 PM - 5 replies
tube pre-amp06-10-2005 06:42 PM - 5 replies
Choke For Supply B+ Diy06-10-2005 12:30 PM - 8 replies
Audio Note DAC4 SRPP output stage problems!06-10-2005 12:25 PM - 5 replies
Regulated Dc Question06-10-2005 11:43 AM - 3 replies
what about tubes?06-10-2005 07:39 AM - 20 replies
Please help choose amp layout.06-09-2005 08:31 PM - 7 replies
SE 813 OPT..Am I On the right Track?06-09-2005 06:16 PM - 4 replies
say it's a hum problem06-09-2005 02:55 PM - 19 replies
Affordable KT8806-09-2005 02:00 PM - 17 replies
With transformer or OTL ?06-09-2005 10:13 AM - 5 replies
45 SE tube amp OPT06-09-2005 06:10 AM - 7 replies
2 Bogen 7027 tube amp vintage amplifier mono block06-09-2005 05:38 AM - 10 replies
Newnewbie Ouput Tranny question06-09-2005 05:14 AM - 1 reply
Webcor Amplifier Speaker06-09-2005 05:14 AM - 2 replies
could 24A been power tube06-09-2005 12:47 AM - 6 replies
How's this for a first amp?06-09-2005 12:23 AM - 7 replies
U.K. transformer supplier06-08-2005 11:06 PM - 1 reply
stereo el34 + kt66?06-08-2005 10:15 PM - 9 replies
Very tempting Good invesment or not????????06-08-2005 09:23 PM - 3 replies
A Heretical Unity gain line stage06-08-2005 08:40 PM - 85 replies
NFB net gain or loss06-08-2005 10:18 AM - 18 replies
Different brands:Is there any difference?06-08-2005 10:08 AM - 8 replies
McIntosh 225 Schematic06-08-2005 09:18 AM - 3 replies
LM317 for power amp regulation?06-08-2005 03:12 AM - 32 replies
KT88 or 6550?06-07-2005 07:34 PM - 3 replies
sijosae's multi-hybrid headphone amp06-07-2005 06:58 PM - 2 replies
How to choose 6c33b?06-07-2005 06:15 PM - 18 replies
Using rectifier tubes in parallell06-07-2005 04:57 PM - 3 replies
Small problem at power off06-07-2005 02:31 PM - 8 replies
Preamp rebuild - hum problem06-07-2005 12:36 PM - 26 replies
what should I do with this tranny???06-07-2005 09:01 AM - 6 replies
Will this 2A3 PSE work?06-06-2005 12:30 PM - 6 replies
Ec8606-06-2005 11:34 AM - 6 replies
Worth to buy - tubes?06-05-2005 11:58 AM - 12 replies
10/10/ preamp06-05-2005 07:50 AM - 14 replies
what do you think of this preamp?06-04-2005 11:33 PM - 21 replies
Tube FM -- Armstrong's first bdcst commemorated06-04-2005 02:47 PM - 3 replies
rjm 6dj8 phono section06-04-2005 11:09 AM - 19 replies
mercury vapor rectifier tubes on e-bay06-04-2005 05:57 AM - 10 replies
Russian Tube Stuff -- WSJ06-04-2005 01:48 AM - 3 replies
Help Please!!!!!!06-03-2005 09:40 PM - 4 replies
5902 amp schematics?06-03-2005 05:14 PM - 3 replies
Microphonics...........06-03-2005 03:58 PM - 4 replies
High voltage PSU06-03-2005 10:04 AM - 7 replies
2A3 v 655006-03-2005 04:13 AM - 96 replies
Coupling cap question06-02-2005 09:36 PM - 10 replies
Wollcott cross coupled circuit06-01-2005 07:03 PM - 72 replies
TAD Tubes where are they from?06-01-2005 04:08 PM - 15 replies
ebay Junk or Treasures?06-01-2005 03:47 PM - 2 replies
interconnects06-01-2005 03:00 PM - 8 replies
In few words06-01-2005 02:35 PM - 4 replies
GlassFET Design Ideas06-01-2005 12:20 PM - 48 replies
ecc88 tube pover supply-rect.06-01-2005 11:14 AM - 8 replies
A tubeNoob enters => I bought a Dynavox VR-70E06-01-2005 10:14 AM - 14 replies
plugging guitar amp to phono reciever06-01-2005 04:01 AM - 4 replies
Heater Supply using LM3X7 current source05-31-2005 02:47 PM - 10 replies
Stepdown input trafo05-31-2005 01:11 PM - 7 replies
increasing the bias will cause the amp to.....05-31-2005 12:49 PM - 2 replies
Transformer faulty?05-31-2005 09:36 AM - 5 replies
More crappy Russian EL34s - Svetlana this time05-31-2005 07:39 AM - 5 replies
My Tragic story about Emission Labs tube05-31-2005 07:02 AM - 2 replies
Please help me solve the problem05-31-2005 06:44 AM - 14 replies
amp freq response with o-scope05-30-2005 11:02 PM - 8 replies
Can you SEE (construction) how a tube SOUNDS?05-30-2005 03:10 PM - 5 replies
CCS fed shunt regulators05-30-2005 02:24 PM - 3 replies
Recommended Modifications/Tweaks for Dynaco PAS-3 Series II Pre-Amp05-30-2005 06:14 AM - 3 replies
ebay toys05-30-2005 01:31 AM - 16 replies
Source for 6c45pi's???05-30-2005 12:16 AM - 4 replies
phono preamp design for c3m postie valve05-29-2005 11:57 AM - 1 reply
McMartin MA-50 Troubleshooting05-29-2005 02:33 AM - 14 replies
looking for something different05-28-2005 11:45 PM - 2 replies
mc27505-28-2005 10:11 PM - 13 replies
Sv572-3 Se05-28-2005 02:57 PM - 2 replies
Alps step attenuator05-28-2005 02:05 PM - 5 replies
seeking real kt90 pp schematics05-28-2005 11:53 AM - 2 replies
-50V negative supply05-28-2005 11:07 AM - 17 replies
Inductance coupling between chokes05-28-2005 10:06 AM - 0 replies
Mercury Magnetics05-27-2005 09:31 PM - 3 replies
warming up thetubes05-27-2005 06:27 PM - 5 replies
distorsion05-27-2005 07:05 AM - 4 replies
using a plate choke?05-27-2005 05:10 AM - 15 replies
Should I trash these tubes05-27-2005 05:09 AM - 7 replies
Minature Vaccum Tube Question05-26-2005 08:25 PM - 12 replies
46 tube user05-26-2005 05:06 PM - 8 replies
Smells like a mistake05-26-2005 02:16 PM - 15 replies
Help for my hybird zero feedback AMP05-26-2005 02:07 PM - 2 replies
help on ul transformer please05-26-2005 01:42 PM - 29 replies
Wiring the D3a as triode - What is best?05-26-2005 10:46 AM - 18 replies
Switching from ultralinear to triode05-26-2005 09:36 AM - 3 replies
Help for a Output Transfo problem05-26-2005 12:31 AM - 4 replies
Pentode models05-25-2005 11:10 PM - 6 replies
Good or bad to use parallel capacitors of same value in signal path...05-25-2005 08:11 AM - 1 reply
Urgent: Need Help on Schematics (Tube Pre-Amplifier)05-25-2005 07:24 AM - 1 reply
ASL wave 8 mods05-24-2005 11:08 PM - 2 replies
lectron jh 60 help----------------05-24-2005 09:20 PM - 0 replies
crown tube poweramp05-24-2005 09:07 PM - 7 replies
Alan kimmel mu stage article05-24-2005 06:12 PM - 1 reply
What would you do with this amp?05-24-2005 04:38 PM - 8 replies
tube software05-24-2005 04:13 AM - 3 replies
Simple Valve Preamplifier05-24-2005 04:00 AM - 15 replies
Current sourced heaters in a CF05-23-2005 10:20 PM - 21 replies
Tubes and music styles05-23-2005 10:17 PM - 8 replies
Cheap SE EL8405-23-2005 08:06 PM - 9 replies
Making a living out of tubes? (A little off-topic)05-23-2005 01:07 PM - 12 replies
EL84 matched pairs05-23-2005 07:26 AM - 12 replies
Tango XE20S voltage rating?05-23-2005 06:23 AM - 21 replies
power transformer heat05-23-2005 04:11 AM - 6 replies
Tubes05-23-2005 02:33 AM - 7 replies
Taylor 84505-22-2005 09:19 PM - 1 reply
AVO CT-160 Tube Tester - how to remove knobs?? - please help05-22-2005 03:47 PM - 10 replies
The DIYHifiSupply.com Joplin amplifier Kit05-22-2005 10:58 AM - 7 replies
Berning P-1 Preamp05-22-2005 04:04 AM - 8 replies
Which tube for OPT 7,5k SE low watts???05-21-2005 10:17 PM - 13 replies
help me with this puzzle...05-21-2005 07:39 PM - 3 replies
Used Tube Amps, second life..05-21-2005 04:06 PM - 17 replies
Univox 1501 Fried Resistors05-20-2005 01:52 PM - 8 replies
It makes me wonder ...05-20-2005 10:01 AM - 17 replies
Tubes operating in horizontal position05-20-2005 08:02 AM - 10 replies
Dewald radio N-803b keep or use parts?05-20-2005 03:43 AM - 2 replies
Ongaku05-19-2005 09:58 PM - 15 replies
PSU Design question05-19-2005 09:28 PM - 21 replies
Primary reactance of a parafeed OPT05-19-2005 08:13 PM - 12 replies
Info on IIT interstage trafos?05-19-2005 06:55 PM - 6 replies
vt25/10-Y or 45 tube05-19-2005 05:19 PM - 5 replies
2a3, single plate-double plate?05-19-2005 03:52 PM - 5 replies
Preferred tube? KT88 vs. EL3405-19-2005 03:10 PM - 2 replies
You may laugh..but don't waste your time trying to dissuade me. 300B preamp.05-19-2005 09:59 AM - 56 replies
Parallelling power supply chokes???05-18-2005 05:16 PM - 4 replies
Sherwood S700005-18-2005 02:21 PM - 2 replies
please explain plate curves05-18-2005 11:38 AM - 4 replies
Triode connected SV6550C with 500V HT05-18-2005 11:32 AM - 9 replies
KT88 SE schematic wanted.05-18-2005 11:13 AM - 9 replies
6SN7 based tube buffer05-18-2005 06:46 AM - 17 replies
hum measurement05-17-2005 10:16 PM - 10 replies
Load of tubes to liquidate05-17-2005 07:20 PM - 8 replies
Unhappy with the Lilliput design05-17-2005 12:36 PM - 18 replies
Halving OPT's pri.imp. by connecting 8ohm load to 16ohm tap - Good/Bad?05-17-2005 10:56 AM - 16 replies
Tube Technology Prophet05-17-2005 10:36 AM - 0 replies
Cathode Feedback from Secondary for PP Amp05-17-2005 07:18 AM - 16 replies
Zenith Amplifier05-16-2005 11:37 PM - 4 replies
Dynaco SCA-35 fixer-upper05-16-2005 08:59 PM - 7 replies
Multiple primary power transformer question05-16-2005 08:42 PM - 7 replies
Sizing a Regulator05-16-2005 07:35 PM - 5 replies
will laziness burn my amp down?!05-16-2005 08:15 AM - 27 replies
resistors of a lower power rating05-15-2005 04:50 AM - 2 replies
wavy vibrato-like sound when amp cranked05-15-2005 04:44 AM - 4 replies
Rh34se?05-15-2005 02:13 AM - 2 replies
Ef86, 6n1p & 845pp05-14-2005 08:58 PM - 3 replies
HYBRID POWER AMPLIFIER - please help!05-14-2005 05:32 PM - 8 replies
6528 Se05-14-2005 08:55 AM - 9 replies
single ended HiFi Regal stereo tube amplifier05-13-2005 03:29 PM - 20 replies
Matisse Line Amp05-13-2005 12:29 PM - 10 replies
changing longtail05-13-2005 11:18 AM - 12 replies
What do you think??????05-13-2005 08:45 AM - 8 replies
The amplifier itself whines05-13-2005 07:39 AM - 14 replies
DIY repair- replacing capacitors05-13-2005 07:09 AM - 5 replies
Benefits of 845B05-13-2005 05:47 AM - 14 replies
Counterpoint Preamp Modifications05-13-2005 02:47 AM - 1 reply
Humming Sovtek EF8605-12-2005 06:16 PM - 4 replies
Output Transformers05-12-2005 05:27 PM - 2 replies
RIAA phono stage05-12-2005 04:25 PM - 10 replies
The cathode FeedBack in Push-Pull amp05-12-2005 03:26 PM - 3 replies
What's a Field Coil Amplifier?05-12-2005 01:01 PM - 9 replies
Need help for ampeg tube amp transformers ...05-12-2005 01:33 AM - 3 replies
HF filter inductors for signal path05-11-2005 11:07 PM - 3 replies
Different tube options for DCMB driver stage?05-11-2005 10:29 AM - 6 replies
Crowhurst paper on output xformer search05-11-2005 08:37 AM - 14 replies
Tamura inputs trans used as linestage out05-11-2005 06:28 AM - 2 replies
Seperate Amp for center channel05-11-2005 04:38 AM - 1 reply
Look for UL41 PP Structure!!05-10-2005 07:35 PM - 2 replies
Photoelectric valves?05-10-2005 03:09 PM - 7 replies
Bell Carrillon tube amp 6V605-10-2005 07:31 AM - 2 replies
Looking for Old Elector Tube Preamplifier article05-10-2005 06:17 AM - 24 replies
Yamamoto Sound Craft A-08 Amplifier05-09-2005 01:14 PM - 0 replies
Wanted Radford MA-1505-09-2005 12:07 PM - 6 replies
Beyond SET and ParaFeed.... Complementary Current Triode05-08-2005 10:04 PM - 65 replies
Too much gain05-08-2005 05:17 PM - 6 replies
2 To 3 Prong Conversion05-08-2005 01:38 AM - 3 replies
6c33 Set05-08-2005 12:29 AM - 0 replies
Svetlana MVSZ ---> cheat??05-07-2005 09:16 PM - 17 replies
separation of phono power supply for marantz m7 clone05-07-2005 08:13 PM - 0 replies
300b Circuit Mod.05-07-2005 05:34 PM - 11 replies
james transformers05-07-2005 05:29 AM - 6 replies

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