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9th November 2009, 09:09 PM
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#2641 |
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diyAudio Moderator Emeritus
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I like the Dynaco look and setup. So you found the transformers yesterday. And made pcb's and got it fired up in one day!!!! I'm jealous.
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9th November 2009, 10:14 PM
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#2642 |
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diyAudio Member
Join Date: Sep 2003
Location: Alps:Tube amp designs over 150W, SMPS guru.
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Well well; alot of similarity, ECL82 7W per channel. Drop-through o/p trannies; home-made mains tranny different orientation. Not a touch of hum..Fixed bias operation.
squad= balanced input trannies: front end 12GN7 as triode; split load p/s ECC88. I like the sound but 8K primary is a touch soft on the upper register, neverless an easy amp to build with a remarkable performance and sounds astonishingly loud and clean when put against a 20 Watter. richy |
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11th November 2009, 07:38 AM
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#2643 |
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diyAudio Member
Join Date: Nov 2009
Location: athens
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My new pre line with phono stage
Hi all my new pre, the design is mr Allen W[ATTACH][ATTACH][ATTACH]100_1138.JPG[/ATTACH][/ATTACH][/ATTACH]rite.
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11th November 2009, 12:29 PM
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#2644 |
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diyAudio Member
Join Date: Nov 2009
Location: athens
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[ATTACH][ATTACH]100_1142.JPG[/ATTACH][/ATTACH] and this
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12th November 2009, 07:04 PM
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#2646 |
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diyAudio Member
Join Date: Nov 2009
Location: dayton ohio
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It's a beast,
Grommes becomes Frazier Power amp turned mega bass crazy; 4 output tubes 6GT5A's rapevan now where did those guys go? |
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23rd November 2009, 07:04 PM
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#2647 |
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diyAudio Member
Join Date: Oct 2009
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My "Brook" sytle 6B4G PP intergrated
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23rd November 2009, 08:29 PM
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#2648 |
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diyAudio Member
Join Date: Aug 2008
Location: Bulgaria
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My Black Velvet OTL headfones amplifier
6H13C & Rare CV200/600 & PCC88 Siemens /yellow pins/
OTL for headphones 200 and more ohms. Loftin-white, only 1 cap ELNA CE between output stage and headphones. Picasa Π£Π΅Π± ΠΠ»Π±ΡΠΌΠΈ - Azazello - amplifiers |
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25th November 2009, 08:03 AM
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#2649 |
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Tubie Noobie
diyAudio Member
Join Date: Apr 2003
Location: Southern Tier NY
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12B4 Linestage
First Tube Construction
12b4 linestage built based on threads here. CLCLC Filter with 2x OD3 for 300V B+. Resistive loaded plate with a LM317CCS on the cathode keeping the tube biased at 20mA with 150V plate voltage. Have not played with LED bias yet. Built P2P but embarrased to show it as wiring is UGLY. No hum so I guess it is good enough for now. Chasis made of Cherry and Maple of local origin. The gas reference tubes add a very nice light to the amp.
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Living Life Doing the Waltz in 4/4 meter. |
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