Posted on Monday, 21st December 2009 by Jimmy Auw

Not really published on the market (at least not well spotted around big online webstore), but I manage to get a pair of it.

This is the CAST version of the Duelund Resistor. Well, for the Capacitor, the CAST definitely better (less ringing, so quiet, dynamic). How about this Resistor? Not sure though, plan to test it somewhere. Picture below is the 5W version.

(more…)

Tags: CAST, Duelund, resistor
Posted in Collectible Stuff | Comments (11)

Posted on Friday, 18th December 2009 by Jimmy Auw

I have a short free time at the afternoon, and it’s time to test my Power Supply for my Gainclone. Powered by Talema dual secondaries, each rated at 18VAC/6.3A

(more…)

Tags: Black Gate, gainclone, power supply, talema
Posted in DIY Audio | Comments (11)

Posted on Saturday, 12th December 2009 by Jimmy Auw

Just arrive, could be my last “considered high end” capacitor… I welcome you, Audio Note Copper Foil Mylar in Oil 0.47uF/630Volt.

I do love the beautiful elegant copper appearance from this capacitor. It just wonderful and good looking (maybe I’m too bored with “brown paper” from Jensen and Duelund). How does this thing sound? Will see, later, don’t expect me to test it soon, since quite busy these days.

(more…)

Tags: audio note, Capacitor
Posted in Collectible Stuff | Comments (6)

Posted on Sunday, 6th December 2009 by Jimmy Auw

I will not use “Ultimate” or “Premium” project since no one knows (even me) the result of this Gainclone project. I would say… “Ridiculous Gainclone”. Is that OK? To be honest, this more likely a mini battleship (A-Wing?) on the StarWars movie than an amplifier.

A brief view of it, from the top. Powered with Mundorf Supreme Silver/Gold/Oil as input coupling capacitor (2.2 uF), Vintage NOS SCR 22 uF as feedback capacitor, and Black Gate F Series as power capacitor, bypassed with K40Y Russian oil capacitor. Isn’t that “ridiculous”?

Keep reading, I will show some things I have done today to assembly my Gainclone.

(more…)

Tags: gainclone, power amp, solid state
Posted in DIY Audio | Comments (28)

Posted on Thursday, 3rd December 2009 by Jimmy Auw

I order another transformer. This should be an upgrade of the previous version.

First, I add 0-75V tap for my neon lamp INS-1.

Second, I upgrade from H10 to Z11 lamination, from 35 size to a bigger 38 size.

Finally, I also upgrade the internal wire from local made to Germany/Australia combination.

It’s a kind of oversize for an “only” 100+VA transformer.

(more…)

Tags: transformer
Posted in Collectible Stuff | Comments (5)