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Trump Card 768K - no cover/heatsink
Posted: Mon Nov 06, 2017 4:07 pm
by Pr0f
Cover was removed as the Trump card was going to be the I/O and memory for a z180 project. Sadly I can't find the cover plate, but the unit was working with my QL prior to being stored.
The ROM version is 1.37
Selling for £40 plus postage as missing the cover - you will need to do something with this before powering up, as the regulator uses the cover plate as a heatsink, but it should fire straight up.
Re: Trump Card 768K - no cover/heatsink
Posted: Mon Feb 19, 2018 5:18 pm
by Pr0f
Tested running...
Re: Trump Card 768K - no cover/heatsink
Posted: Mon Feb 19, 2018 11:54 pm
by Dave
I'll take it. Can you PM me a shipping quote to Texas, 78664? Slow method is fine. Or send me a paypal invoice to my personal email?
Re: Trump Card 768K - no cover/heatsink
Posted: Tue Feb 20, 2018 12:11 am
by Pr0f
Dave wrote:I'll take it. Can you PM me a shipping quote to Texas, 78664? Slow method is fine. Or send me a paypal invoice to my personal email?
You have PM.
Re: Trump Card 768K - no cover/heatsink
Posted: Sat Mar 17, 2018 4:16 pm
by JanR
Sold?
Re: Trump Card 768K - no cover/heatsink
Posted: Sat Mar 17, 2018 4:55 pm
by Pr0f
I believe Dave is taking this, so yes it's no longer available, sorry.
Re: Trump Card 768K - no cover/heatsink
Posted: Sun Mar 18, 2018 3:31 am
by Dave
Never got a pm. Just need a total.
Re: Trump Card 768K - no cover/heatsink
Posted: Sun Mar 18, 2018 3:32 am
by Dave
Oops. Did get it.
Re: Trump Card 768K - no cover/heatsink
Posted: Sun Mar 18, 2018 9:18 am
by Derek_Stewart
Hi,
On the list of things to do, is produce a CAD drawing of a Trump Card Cover, from the original cover I have.
I would then produce a 3D Printed version and replace the 7805 power regulator with a DC-DC converter, giving no heat.
Re: Trump Card 768K - no cover/heatsink
Posted: Sun Mar 18, 2018 2:56 pm
by Dave
I made a mold to make covers out of carbon fiber, which has better EMI properties. I make buck regulators.
