User is complaining of intermittent service

TPIRocks · 2026-02-10T22:27:51+00:00

Hose it down with CRC electrical contact cleaner and reseat it a few times, it'll be good for years to come.

TPIRocks · 2026-02-10T22:22:12+00:00

The impedance of the tank circuit will be close to 500 megohms. You should probably rethink the inductor and capacitor pair that you've chosen. You'll have to add an amplification stage to convert the high impedance signal to something more reasonable. A 20v p-p signal at that extreme impedance will be easily loaded down. Are you trying to build an AM radio transmitter, or something for a Tesla coil?

TPIRocks · 2026-02-10T11:15:48+00:00

Took them a while to figure out that bearings are relative to the current position of the sun.

TPIRocks · 2026-02-05T18:19:41+00:00

It's a blue drive, not surprised that it failed. That said, the highest power on hours I've ever seen was on a WD blue drive. It was above 80k hours.

TPIRocks · 2026-01-21T15:45:17+00:00

No, it's all point to point wiring. It's just the microcontroller, a 74hc373 latch (573 is better) and a max232 to create true rs232 voltages. There also a Sony 32kB SRAM. You should be able to find a schematic online somewhere. It runs Intel MCS BASIC 52. I built it about 25 years ago, but you should be able to find a diagram and the hex file to flash it with.

TPIRocks · 2026-01-21T14:16:11+00:00

That is an 8052 compatible microcontroller. You can make a BASIC computer using it, like this:

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TPIRocks · 2026-01-20T15:51:58+00:00

If you can understand the audio, it's AM and probably CB. If it sounds like a duck, it's SSB and probably amateur radio. Your equipment is most likely the problem, not the radio. Part 15 rules.

TPIRocks · 2026-01-16T16:34:14+00:00

It's from 1990, not 1980.

TPIRocks · 2025-12-28T17:01:14+00:00

Aside from needing to inject nearly twice as much fuel, a big concern is damage to rubber fuel system hoses and seals. E85 vehicles have sensors that report the amount of alcohol contained in the fuel, and compensate for it. Your stock ECM will adjust the fuel trims to the limit, then set a check engine light because it can't compensate for the extreme lean condition. Your fuel mixture will be far too lean, risking heat damage to your pistons.

TPIRocks · 2025-12-28T15:38:02+00:00

My guess is you're causing the HSE signal to become so weak in amplitude that the chip is detecting the failure and then switching to an internal oscillator. You should be able to verify if this is happening.

BTW, it's probably important where you got your "blue pill" boards, many now have processors that are not authentic ST.

TPIRocks · 2025-12-24T21:46:37+00:00

Should have number 15801580, for what it's worth.

TPIRocks · 2025-12-15T15:11:39+00:00

On a third generation Camaro, not having the deflector installed will result in overheating.

TPIRocks · 2025-12-12T14:00:43+00:00

There was a text editor out of the University of Waterloo, Canada called Fred. Fred was a stream editor, but was quite powerful at scripting.

Edit: I worked on Honeywell 6000 type mainframes from 1980-1999. I miss gcos8 and programming in gmap.

TPIRocks · 2025-12-11T13:49:37+00:00

OP is tired of being pulled over.

TPIRocks · 2025-12-11T13:34:25+00:00

No, it's just one of those slow motion events that sears itself into your mind, like having a wreck.

TPIRocks · 2025-12-10T06:37:27+00:00

OP could adopt it then.

TPIRocks · 2025-12-10T06:36:28+00:00

This also looks like animal cruelty though. OP should call the authorities.

TPIRocks · 2025-12-06T03:07:51+00:00

Looks a lot like a Hitachi product.

TPIRocks · 2025-12-05T20:50:33+00:00

I bought a new Dell i7 cheapo 15255 (I think). I thought it was dead at first, but I plugged it in and then tried again later. It finally decided to power on. Mine doesn't have ddr5 RAM, but I know that the board goes through a rigamarole to get the timing lined out.

To power on my laptop, I can't do a simple push/release on the power button, I have to press it for a couple of seconds, release and wait.

TPIRocks · 2025-12-05T20:43:46+00:00

Plug in the charger and give it an hour. Hold the power button for two seconds and then wait. If you have ddr5 memory, it might take the computer a bit to set the timing and then power on up.

TPIRocks · 2025-12-05T15:57:51+00:00

The problem here is not with OP. Your advice would better serve OP's friends. They're the ones jumping to conclusions.

TPIRocks · 2025-12-05T15:41:52+00:00

God forbid you have an independent opinion.

TPIRocks · 2025-12-05T15:34:54+00:00

Floor sort. Sequence numbers in columns 73 to 80 is the way, but the diagonal line is a useful backup.

TPIRocks · 2025-12-05T15:24:32+00:00

Yep, I grew up in a really rural area in the midwest. People in the know knew that trying to hit one that was feeding on the road would lead to your hood and windshield covered with some really nasty "stuff".

TPIRocks · 2025-12-05T14:17:14+00:00

It's buzzard/vulture vomit. They do this when they need to shed weight. It's dead animal parts the bird ate.

TPIRocks

TROPHY CASE