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Old 26th August 2002, 01:01 AM   #1
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Default Bride of Zen on a shoestring

Since I've been accused on more than one occasion of showing creations that might be out of reach for some members of this forum I present here something that can be easily and cheaply done and looking nice as well. This is BOZ I built for my brother in law.
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“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
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Old 26th August 2002, 01:04 AM   #2
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That's the back panel. The case was bought from my local Chinese store for CAD 30.
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Old 26th August 2002, 01:08 AM   #3
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The PCBs were done and designed by me. I always prefer to use relay switching mounted directly on input and output connectors, minimum wiring this way and purer signal paths. I used separate transformer for relays. Input potentiometer is 100K Nobel sourced from Sonic Frontiers. The toroid is mounted on a thick copper plate.
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Old 26th August 2002, 01:11 AM   #4
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Wiring by Kimber, coupling caps from Rifa (Elso should know now how I know they are bright ). The extra circuit here is low pass crossover for subwoofer (Marchant) with separate transformer and PS.
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“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
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Old 26th August 2002, 01:14 AM   #5
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I did that preamp in 2 days, and being seemingly cheaply done I always look at it with pleasure. Maybe because it owes its styling to early Mark Lewinson equipment.
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“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
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Old 26th August 2002, 02:04 AM   #6
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Oh my god, is that AWFUL or what?

2 days eh? I hate you... nah, not really. It looks damn good!
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Old 26th August 2002, 02:14 AM   #7
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Default peter daniel

peter, how do you get from an rca plug to the pos and neg inputs plus ground, of one channel of a balanced input. in other words how do you get from two hots and ground to one hot and ground?
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Old 26th August 2002, 02:18 AM   #8
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This is BOZ (not balanced). Balanced BOZ came later. I did this in 1995 or so.
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Old 26th August 2002, 02:29 AM   #9
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AHem well i have one thing in my preamp that you dont...

murcury wetted relays i have about 400 of them in a box in my shop hehe paps gave them to me.. he didnt need them and said that they are perfect for noise free switching in a pre amp..

so well im using them..

( not all of them but a few.. )


Jason
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Old 26th August 2002, 02:31 AM   #10
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Can you show me how they look?
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