Offered and bought a used Automatic Seiko from USA because I had to replace my current Seiko automatic watch had incorrectly serviced using thin crystal (sapphire I think) finally shattered, should had been a thicker type but the crystals I see out there even correct one are heavily beveled than originals. Repair watch forums had same comments about these issue.

This watch is much treasured because this is hard to find this particular dial style but I fortunately found another with same face style. Easy to read even in the dark.

I'll rehouse my other watch in another case with good crystal once I found another one. Seiko is smart about keeping movements the same dimensions, eg: I can swap ancient 1960 era 17 jewel 6308 movement for new modern Seiko Sii 24 jewel NH35A movement and keep original hands and dial.

BTW the india sourced seikos are 100% fakes (including case) even the movements are sloppily serviced or worn out, even rusted (!!), I did source an couple for curiosity sake. Not of correct dimensions vs original Seiko design.

Cheers,

Just arrived, a Sound Blaster X-Fi Elite Pro, bought it to finish off my high end 2006 mid-range XP build.

Ozzuneoj wrote on 2023-04-22, 19:44:

I don't know... […]
Show full quote

debs3759 wrote on 2023-04-22, 18:03:

At most I'd expect about 6% increase. ((850/800) - 1) x 100. Basic math.

I don't know...

x = (800 + 50) / 100

Next, let's define a function f(t) as:

f(t) = (t + 1) * (t^2 + 1) * (t^4 + 1) * (t^8 + 1) * (t^16 + 1) * (t^32 + 1) * (t^64 + 1) * (t^128 + 1) * (t^256 + 1)

Now, let's evaluate f(x) and subtract 1:

f(x) - 1 = ((800 + 50) / 100 + 1) * (((800 + 50) / 100)^2 + 1) * (((800 + 50) / 100)^4 + 1) * (((800 + 50) / 100)^8 + 1) * (((800 + 50) / 100)^16 + 1) * (((800 + 50) / 100)^32 + 1) * (((800 + 50) / 100)^64 + 1) * (((800 + 50) / 100)^128 + 1) * (((800 + 50) / 100)^256 + 1) - 1

Now, let's simplify this expression by multiplying out the terms:

f(x) - 1 = ((850 / 100) * ((850 / 100)^2 + 1) * ((850 / 100)^4 + 1) * ((850 / 100)^8 + 1) * ((850 / 100)^16 + 1) * ((850 / 100)^32 + 1) * ((850 / 100)^64 + 1) * ((850 / 100)^128 + 1) * ((850 / 100)^256 + 1)) - 1

Simplifying further, we get:

f(x) - 1 = (850 / 100) * (850^2 / 10000 + 1) * (850^4 / 100000000 + 1) * (850^8 / 100000000000000 + 1) * (850^16 / 100000000000000000000 + 1) * (850^32 / 100000000000000000000000000000 + 1) * (850^64 / 100000000000000000000000000000000000000000000 + 1) * (850^128 / 100000000000000000000000000000000000000000000000000000000000000000 + 1) * (850^256 / 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 + 1) - 1

If we evaluate this expression, we get:

f(x) - 1 = 4.5 * 10^30

Now, let's calculate the percentage increase of f(x) - 1 over f(0) - 1:

((f(x) - 1) / (f(0) - 1)) * 100% = ((4.5 * 10^30) / 1) * 100% = 4.5 * 10^32%

Therefore, we can say that 800 + 50 is a 50% increase over... something.

Basic math.

What's the mathematical background of this?

amadeus777999 wrote on 2023-04-23, 07:37:

Ozzuneoj wrote on 2023-04-22, 19:44:

I don't know... […]
Show full quote

debs3759 wrote on 2023-04-22, 18:03:

At most I'd expect about 6% increase. ((850/800) - 1) x 100. Basic math.

I don't know...

x = (800 + 50) / 100

Next, let's define a function f(t) as:

f(t) = (t + 1) * (t^2 + 1) * (t^4 + 1) * (t^8 + 1) * (t^16 + 1) * (t^32 + 1) * (t^64 + 1) * (t^128 + 1) * (t^256 + 1)

Now, let's evaluate f(x) and subtract 1:

f(x) - 1 = ((800 + 50) / 100 + 1) * (((800 + 50) / 100)^2 + 1) * (((800 + 50) / 100)^4 + 1) * (((800 + 50) / 100)^8 + 1) * (((800 + 50) / 100)^16 + 1) * (((800 + 50) / 100)^32 + 1) * (((800 + 50) / 100)^64 + 1) * (((800 + 50) / 100)^128 + 1) * (((800 + 50) / 100)^256 + 1) - 1

Now, let's simplify this expression by multiplying out the terms:

f(x) - 1 = ((850 / 100) * ((850 / 100)^2 + 1) * ((850 / 100)^4 + 1) * ((850 / 100)^8 + 1) * ((850 / 100)^16 + 1) * ((850 / 100)^32 + 1) * ((850 / 100)^64 + 1) * ((850 / 100)^128 + 1) * ((850 / 100)^256 + 1)) - 1

Simplifying further, we get:

f(x) - 1 = (850 / 100) * (850^2 / 10000 + 1) * (850^4 / 100000000 + 1) * (850^8 / 100000000000000 + 1) * (850^16 / 100000000000000000000 + 1) * (850^32 / 100000000000000000000000000000 + 1) * (850^64 / 100000000000000000000000000000000000000000000 + 1) * (850^128 / 100000000000000000000000000000000000000000000000000000000000000000 + 1) * (850^256 / 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 + 1) - 1

If we evaluate this expression, we get:

f(x) - 1 = 4.5 * 10^30

Now, let's calculate the percentage increase of f(x) - 1 over f(0) - 1:

((f(x) - 1) / (f(0) - 1)) * 100% = ((4.5 * 10^30) / 1) * 100% = 4.5 * 10^32%

Therefore, we can say that 800 + 50 is a 50% increase over... something.

Basic math.

What's the mathematical background of this?

Chat GPT maths

amadeus777999 wrote on 2023-04-22, 10:13:

After a long time I got another CRT - 19" with an ok to good picture for 20 "bucks".
On monday I'll grab another one.

It's good to see one more CRT being rescued 😀
Since you wrote 'another' I'd like to hear your opinion on my question in an older post
"[...] I just don't have the space to collect them all [...] How do you guys solve this problem? Do you grab everything or only the 'better' ones?"

Bought this Terratec 5,25" unit but no sound card, Intel 686 CPU and an Nvidia TNT AGP VGA card.

Turbo -> wrote on 2023-04-23, 09:58:

Intel 686 CPU

surely you mean IBM & Cyrix.

weedeewee wrote on 2023-04-23, 10:35:

surely you mean IBM & Cyrix.

Yes. Sorry. Wasn't paying enough attention when writing the post.

Did a best offer on ebay and got this real cheap. The final part for my athlonXP build. Probably..

At last, the DDR version came by.
Asus V6800 / GeForce256 with 32MB.

Rescued an old computer from e-waste that looked somewhat uncommon. It's a Digital Prioris XL Server 5133DP. I haven't found much info on the web about exactly this model, but back then (around 1996) it must have cost a fortune. It has VGA and SCSI onboard, 5 EISA slots, 3 PCI, two CPUs on a plugged-in CPU module and all RAM slots are occupied. Unfortunately the front door is missing but the tower is built (and heavy) like a tank. I hope it still works. Haven't tested it out, yet..
Here's a website with photos from a similar model.

PD2JK wrote on 2023-04-23, 17:06:

At last, the DDR version came by.
Asus V6800 / GeForce256 with 32MB.
v6800.jpg

I got the 64Mb version of that card recently, the DDR model does seem to be pretty rare.

TrashPanda wrote on 2023-04-24, 01:46:

PD2JK wrote on 2023-04-23, 17:06:

At last, the DDR version came by.
Asus V6800 / GeForce256 with 32MB.
v6800.jpg

I got the 64Mb version of that card recently, the DDR model does seem to be pretty rare.

I had a 64MB DDR model of this exact card a few years ago. It worked briefly, then displayed artifacts once and then never worked again. I replaced all the caps and it was still dead. I ended up selling it in a big parts lot. Now, I'm wondering if it was just a bad BIOS or something. 😮

It was missing the backplate anyway, so it was still going to be a project even if I ever got it working... but... I so wanted that thing to be functional.

Ozzuneoj wrote on 2023-04-24, 03:35:

I had a 64MB DDR model of this exact card a few years ago. It worked briefly, then displayed artifacts once and then never worked again. I replaced all the caps and it was still dead. I ended up selling it in a big parts lot. Now, I'm wondering if it was just a bad BIOS or something. 😮

Sounds like a bad memory chip to me.

Today I got this 80GB Samsung SpinPoint P80 SP0822N IDE ATA/100 7200RPM 2MB cache hard drive. Any opinions?

RetroPC_King wrote on 2023-04-24, 11:33:

Today I got this 80GB Samsung SpinPoint P80 SP0822N IDE ATA/100 7200RPM 2MB cache hard drive. Any opinions?

32GB pin setting is very useful for older builds. Good stuff.

HanSolo wrote on 2023-04-23, 20:37:

Rescued an old computer from e-waste that looked somewhat uncommon. It's a Digital Prioris XL Server 5133DP. I haven't found much info on the web about exactly this model, but back then (around 1996) it must have cost a fortune. It has VGA and SCSI onboard, 5 EISA slots, 3 PCI, two CPUs on a plugged-in CPU module and all RAM slots are occupied. Unfortunately the front door is missing but the tower is built (and heavy) like a tank. I hope it still works. Haven't tested it out, yet..
Here's a website with photos from a similar model.

it's full of possibilities for restoration and new projects though, an interesting find

LewisRaz wrote on 2023-04-23, 15:36:

Did a best offer on ebay and got this real cheap. The final part for my athlonXP build. Probably..

i have a radeon 9250 in an athlon xp, a nice card for what is often a very good price, it can play most games of that time just fine

MediaVision PAS Plus (SCSI variant), Everex Tape Drive controller, MSI K7D Master Rev. 1 with two Athlons MP 2000+ (I have another one of this boards laying around which was recapped some time ago - this one has all original caps which are not buldging...).

As for the Everex EV-833 controller I wonder if the internal 50-pin connector is SCSI... I didn't found any documentation, some sources state so, but I'm not sure...

Got these today, I'm going to use most of this stuff for my next 486 build:

Gigabyte GA-5486AL with 32MB RAM and AMD DX4-120. Board had slight battery leakage, but it should boot just fine (worked with the seller). Did the vinegar stuff already and "washed" it a bit with flux, wick and iron and finally scrubbed with IPA so should be good for now:

Not the best card, but it is decent and got it for a relatively cheap price CT2810:

Two vintage Midi System MDR-401 MPU-401 cards (supports intelligent mode). AFAIK these are NOS (and they look like brand spanking new) with 3D printed brackets: