| 5 | | == Amp options |
| 6 | | |
| 7 | | === Push-Pull 6V6 amp (~ 10WPC) |
| 8 | | |
| 9 | | * https://diyaudioprojects.com/Schematics/DIY-Push-Pull-PP-6V6-Tube-Amplifier/ |
| 10 | | * Note on phase splitter: https://www.bonavolta.ch/hobby/en/audio/split.htm#Paraphase |
| 11 | | * Some [http://diyaudioprojects.com/Forum/viewtopic.php?f=9&t=6305 useful notes] |
| 12 | | |
| 13 | | |
| 14 | | === Lacewood Amp === |
| 15 | | |
| 16 | | ''' 3.1 W/ch ''' |
| 17 | | |
| 18 | | * [http://www.cascadetubes.com/the-6v6-lacewood-amp/ V1] [http://diyaudioprojects.com/Forum/viewtopic.php?f=9&t=3274 forum] |
| 19 | | * [http://www.cascadetubes.com/the-6v6-lacewood-amp-v2-0/ V2] [http://diyaudioprojects.com/Forum/viewtopic.php?f=9&t=5736 forum] |
| 20 | | |
| 21 | | {{{ |
| 22 | | 1 Hammond 270FX $74.24 $74.24 Power transf |
| 23 | | 1 XPWR163 $62.09 Alternate pwr tran |
| 24 | | 1 Hammond 193J $58.83 $58.83 10H choke |
| 25 | | 1 CXC100-7H-150mA $47.01 Alternate inductor |
| 26 | | 2 Triad C-24X $ 9.78 $19.56 1H choke |
| 27 | | 1 5U4GB $15.00 $15.00 Rectifier |
| 28 | | 2 6V6GTA $ 7.50 $15.00 Approx eBay price |
| 29 | | 2 GXSE10-5K $29.84 $59.68 Output transf |
| 30 | | Total $242.31 |
| 31 | | }}} |
| 32 | | |
| 33 | | == KT120/KT88/EL34 SE Amp |
| 34 | | |
| 35 | | The KT88 ones below can allegedly handle KT120 with 300 ohm Cathode resistor. Matt from Blueglow says: |
| 36 | | |
| 37 | | {{{ |
| 38 | | Let me put an end to your suffering. |
| 39 | | |
| 40 | | Simple build this amp http://www.diyaudioprojects.com/Schematics/Mikael-Abdellah-SE-KT88-Amplifier.htm |
| 41 | | But remove the KT88 and insert and freshly purchased matched pair of Tung-Sol KT120s. Change the cathode |
| 42 | | resistor to 300ohms. Nothing else has to change. Just ensure the power tranni can deliver about 300mA |
| 43 | | because my amp consumes 112mA per tube. And you have a small current drain for the 6N1P. Also make sure |
| 44 | | you OPTs will handle the idle current. |
| 45 | | }}} |
| 46 | | |
| 47 | | * http://www.blueglow.net Youtube: https://www.youtube.com/watch?v=eNBgo9Md8IU [https://drive.google.com/drive/folders/17jRI1lE_Vf9_Pq64LbT-PHy3pLpW1vuj?usp=sharing Docs] |
| 48 | | |
| 49 | | |
| 50 | | Also mentions a long thread on AK |
| 51 | | |
| 52 | | * As: [http://diyaudioprojects.com/Forum/viewtopic.php?f=9&t=3915 pimp my amp] forum thread [http://www.diyaudioprojects.com/Schematics/Mikael-Abdellah-SE-KT88-Amplifier.htm basic schem] |
| 53 | | * Or: https://diyaudioprojects.com/Tubes/KT88/ |
| 54 | | * And: http://diyaudioprojects.com/Forum/viewtopic.php?p=16391#p16391 |
| 55 | | |
| 56 | | See http://www.valvewizard.co.uk/se.html for a great tutorial on SE output stages |
| 57 | | |
| 58 | | Tubes: |
| 59 | | {{{ |
| 60 | | Rectifier 5Y3, 5U4* |
| 61 | | Preamp 6N1P |
| 62 | | Driver KT88 (have them!) or 6L6, EL34, 6CA7 |
| 63 | | }}} |
| 64 | | |
| 65 | | Parts: |
| 66 | | {{{ |
| 67 | | 1 XPWR010 $85.71 $85.71 |
| 68 | | or XPWR214 $86.00 $86.00 (360-0-360 @ 400mA, dual 6.3 CT @ 4A) |
| 69 | | 1 Hammond 193J $60.78 ($60.78) |
| 70 | | 1 CXC125-10H-200mA $61.37 $61.37 (alternate) |
| 71 | | 2 GXSE15-8-5K $42.34 $84.68 |
| 72 | | or CXSE25-5K $94 $188. (25W, 200mA, UL tap) |
| 73 | | }}} |
| 74 | | |
| 75 | | More thoughts: |
| 76 | | |
| 77 | | * PS would need a bit of redesign for KT120 to handle the power. |
| 78 | | * XPWR214 doesn't have a 5V winding |
| 79 | | * 5U4 is marginal for the current draw |
| | 5 | See http://ohm.bu.edu/trac/edf/wiki/6V6PPAmp |
