5 Attachment(s)
Micro PSU component kits for 060 cards (A3660, B1260 etc)
Selling "micro PSU" component kits for a redesigned voltage regulator circuit for all 060 cards that use the the LT108x series voltage regulators for generating 3.3V from 5V (like: LT1084-3.3, LT1085-3.3 etc). These kits are a drop in replacement for supplying the 060 CPU with stable 3.3V.
The old regulators are obsolete, getting harder to find and sometimes fail. They also generate much more heat, and less stable voltage than these kits which use modern components.
My measurements show about 50% drop in generated heat both on the surface of the regulator and also on most of the GAL chips (on A3660) compared to using LT1084-3.3 regulators. Also the supply voltage is much more stable and there is overall less noise. According to other tests, especially A3000 owners can benefit from a more stable 060 system using these regulators.
Attachment 147949 Attachment 147950 Attachment 147951 Attachment 147952 Attachment 147997
BOM (check pictures above for correct orientation of chip and diodes):
U1: TLV62569
L1: 2.2uH
R1: 10k
R2: 2.21K
C1,C2: 10uF
D1,D2,D3: S1A
Not my design, credit goes to Dennis van Weeren for the excellent work. The sale is for the components and the PCB only, won't be able to provide support. Please note that on some cards you need to mount the kit on the underside of the PCB (watch out for pin orientation, components should face the PCB in this case), or have it on some cables if there is not enough space. The PCB is larger than the original heat sink of the LT1084 so it's only a straight installment to the A3660 cards. But apart from physical constraints it would work with any card that uses the same regulator.
I'm asking 15€ per kit + PP fees + shipping.
Shipping to Europe is 6€ unregistered parcel (at your own risk). Or 19€ registered.
As per forum rules: If you only write "Interested" on the thread, nothing will happen until you send a PM. You need to send a PM (Personal Message) with how many kits you need and your address exactly as it should show on the parcel. No cherry picking please (can I have x without y) what is listed on sale is what you get.
Feedback: Please leave feedback as per the site rules after you've received your stuff. Here is a guide how:
http://www.amibay.com/showpost.php?p=60784&postcount=3
Please have a look at my other new Commodore chips/parts listings:
Brand-NEW-Amiga-4000-Rev-B-motherboard
Amiga-4000-A3660-CPU-card-including-Rev-5-CPU-NEW-professionally-built
NEW-Amiga-4000-motherboard-component-packs-build-your-OWN-Amiga
060-adapters-for-A3640-WarpEngine-spring-mini-sale
Amiga-1200/600/CD32-Premium-recap-and-upgrade-service
Amiga-4000-Premium-recap-and-upgrade-service
Full-GAL-set-and-sockets-for-A3640-A3660-CPU-cards-NOS
Video-repair-upgrade-kits-for-A1200/A600
KickStart-3-1-4-ROM-chips-for-A1200/A600/A4000/A3000/A500/A2000
A4000-RTC-repair-kits
AGNUS-8372A-PAL-chips-(318069-02)-NOS
DMAC-(390563-02)-for-Amiga-3000-A590-A2091-NEW-chips
A3640-CPU-Cards-Rev-3-2-upgrade-chips-new
Service-for-Amiga-4000-3000-2000-1200-600-A3640-A3630
Micro PSU component kits for 060 cards (A3660, B1260 etc)
Quote:
Originally Posted by
supaduper
Interested :)
Payment received
