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  #10591  
Old 13-02-20, 10:49 AM
Damien c Damien c is offline
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Yeah going to take a while to fully sort out, but once it's done it should look a lot better.

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  #10592  
Old 13-02-20, 10:11 PM
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Kei Kei is offline
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4 Transformers and 2 chokes. 2 Sowter UA21 push-pull output transformers, 2, Primary windings 410-0-410V/3.15-0-3.15V/5-0V mains transformers and 2 VVT 10H 180mA chokes.



I've been planning to build a pair of custom monoblock valve power amplifiers in the spring. I've been trying to get around to building my own power amps for the last 8 years. Using a really old Mullard push pull design from the mid 50's called a 5-20. (5 valves, 20 watts) That might not sound that powerful today but having measured how much peak power I actually use from my current solid state power amp, it's plenty. (around 5 watts for loud)

Currently it's still in the design phase and is looking like this.


and a basic 3d render of the chassis design.


Once all the bits arrive, I may start a project thread on it. I've got a few weeks wait as the transformers are made to order.
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  #10593  
Old 13-02-20, 10:52 PM
Bartacus Bartacus is offline
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Good move on that UPS Dice! People fail to realize how valuable those things are, especially in places with flaky old wiring.


Got some new toys recently myself:



Optimus signature water block for AM4, with black mounting plate, nickel plating. Feels like serious hardware:



Micro fins are micro:



The thermal paste in the first pic is Kingpin KPx (never tried it before, heard great things). RAM is G.Skill TridentZ Neo 16GB x 2, the good 3600 CL16/16/16/36 stuff.
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  #10594  
Old 17-02-20, 08:54 PM
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AlienALX AlienALX is offline
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Bought this a couple of weeks ago, but just got to it Friday.



Yeah, I know I bought a Bose one last month... That is going to be my center channel speaker, this is going to be the rears. I have a 5.1 pre amp that I am making mostly wireless so I don't have to run cables. You connect the output of the amp to this.



Then at the other end connect the receiver to the sound bar, hey presto rear speaker surround. I'm doing it like this because sound bars are cheap (that one especially so, £49) and that one requires no extra mounting hardware you just slot it onto screws on the wall.
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  #10595  
Old 18-02-20, 08:39 PM
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Kei Kei is offline
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The input and phase splitter valves for my power amp project. New old stock General electric valves were chosen as they were actually quite cheap considering what "NOS" valves tend to go for and they have a good reputation for quality.

2x 6267/EF86 west german made
2x 5751 JAN (joint army navy military valves) made in the USA


EDIT: Output valves and the rectifier valves arrived today.

4x matched Tung-Sol EL34B output valves
2x Sovtek 5AR4 rectifiers
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Seasonic Prime 750W ⁞⁞ Polaris 961 256GB ⁞⁞ 850 Pro 512GB ⁞⁞ M500 240GB ⁞⁞ WD Se 4TB & 1TB x2 ⁞⁞ Samsung C27HG70 + Dell 2408WFP
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  #10596  
Old Yesterday, 07:13 PM
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AlienALX AlienALX is offline
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Shot in the dark @ £85. Seller says it does not boot, just white text on black background. I'm thinking dead HDD.







Edit. Turns out I did quite well.

I5 3330 (could have been much worse, Sandy I3)
GT 610 (barf, that's going)
6GB RAM (easy to upgrade to 8)
240w PSU (could have been a 180)

And etc. So yeah, not bad. Will make a cracking media PC
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