Dr. Cockroach's Profile

Dr. Cockroach

Almost 70 year old who likes discovering new things. If the books say it can't be done then I'll do my best to prove them wrong.

Near Holden Beach, North Carolina USA

My Pages

The Return Of The LLTP????
12/17/2023 at 15:49 • 0 comments

December 17, 2023 - Yup, after a rather long pause I have ideas to try out on the LLTP. The Sequencer circuit works and is odd enough but the timing pulses are less than desired yet I want to keep things transistor-less. I am going to regress a bit and try out a rotating drum with multiple tracks that will be either hand cranked or motor driven or both. Copper foil on a stiff cardboard tube should work for a start but not yet sure about the contacts to the drum. Springs, paper clips or ??? Should be interesting.
From Retired to Simi-Retired
09/20/2023 at 13:36 • 1 comment

September 20, 2023 - Well, it has come to the point that the fixed retirement incomes of my wife and I are no longer enough to keep up with rising prices ( Rent, auto fuel and food ). I did start part time employment at a local senior outreach thrift store this week and that income will help out a lot. It will also get me out of the house and away from my other half and that is a good thing as long as she does not read this Lol. I have been much less active with my HaD projects but hope to change that soon.
Hot weather and staying inside
07/09/2023 at 12:38 • 0 comments

July 9, 2023 - I keep cycling around my different projects. Right now I am getting back into my Ham Radio mode and working on my 40M CW receiver. Very warm if not down right hot and humid weather here in coastal North Carolina and best for my old bones to stay indoors and keep cool.

View all 20 pages

Bits

Michael Gardi wrote 12/16/2023 at 02:34

Thanks Mark for your interest in my Commodore CHESSmate Reproduction project.

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Michael Gardi wrote 06/16/2023 at 13:02

Thanks for liking my TMD-1: A Turing Machine Demonstrator project Mark.

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Dr. Cockroach wrote 06/16/2023 at 19:08

Any time. I love projects that venture of the box :-)

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Tom Burklin wrote 12/16/2021 at 23:04

yep, it cant be done... ha ha ... i have proved them wrong so many times .. most fun to have

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Dr. Cockroach wrote 12/17/2021 at 11:31

Yeah, it sure is fun. A headache at times but fun ;-)

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danjovic wrote 11/26/2021 at 21:31

Hey Doc, Thanks for liking my #FA-32 recreation project. Have you seen the last pictures, with the pcb fit inside te case?

I should start the tests soon, and add some waveforms and more pictures.

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Dr. Cockroach wrote 11/27/2021 at 11:53

The case and the project overall is really nice and clean. If I wired something like that up then it would have been a tangled mess of wires ;-)

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danjovic wrote 11/27/2021 at 14:42

Thanks Doc!

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Tim wrote 11/07/2021 at 07:39

Thanks for liking the https://hackaday.io/project/180839-vhdlverilog-to-discrete-logic-flow.

Maybe I should adjust it to LLTP at some point ;)

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danjovic wrote 11/05/2021 at 14:33

Hey Doc, how are you doing pal? Thanks for liking my #Stranger Board !

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Dr. Cockroach wrote 11/06/2021 at 10:43

Any time my friend and doing well as can be expected these days ;-)

Hope you are doing well as well :-)

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Ken Yap wrote 09/25/2021 at 23:15

Thanks for liking #TTL binary clock !

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Yann Guidon / YGDES wrote 02/01/2021 at 06:46

Hello Doctor !!!

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Mitsuru Yamada wrote 01/17/2021 at 01:59

Thank you for following and liking my #Homemade Operational Amplifier !

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Ken Yap wrote 10/18/2020 at 21:02

Thanks for liking #6 segments suffice !

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Dr. Cockroach wrote 10/18/2020 at 22:26

Any time, I might give that arrangement a try with my LLTP when it is ready for a output display :-)

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Ken Yap wrote 10/18/2020 at 22:29

Look forward to that!

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Craig Hissett wrote 09/17/2020 at 06:25

Thanks for liking my #Multi fx Stomp Box buddy!

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Dr. Cockroach wrote 09/17/2020 at 09:50

Any time. I might someday try to make a synth and your work looks great :-)

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Craig Hissett wrote 09/17/2020 at 10:15

Thanks man! For synth stuff I've recently been playing with Pure Data - there's lots of fun to be had with that for some good old fashioned synthing using a Pi :-)

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Ken Yap wrote 02/11/2020 at 11:29

Thanks for liking #DTL binary clock !

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Alexey Voronin wrote 12/03/2019 at 12:56

Thanks for the like of my #cpm4nano - CP/M computer powered by Arduino Nano !

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Daren Schwenke wrote 08/01/2019 at 23:19

Thank you for the Like/follow of the #REMB - Raz0r Electric Mountain Board project. Had to get the battery in at least so we could move along here lest it destroy itself..

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Jacob Still wrote 06/24/2019 at 23:35

Thanks for taking the time to look at and follow the #DIYTIL311 !

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Dr. Cockroach wrote 06/25/2019 at 09:37

:-D

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roelh wrote 04/23/2019 at 12:13

Hi Dr. Cardboard, thanks for liking and following the #Kobold - retro TTL computer !

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Daren Schwenke wrote 03/25/2019 at 16:30

Thank you for the Like of my #Parametric Box Generator project Dr.

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Morning.Star wrote 01/19/2019 at 16:43

Cardboard, Cardboard, Everywhere.

Muahahahah! Thanks my friend, #The House Of Fun

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Yann Guidon / YGDES wrote 01/16/2019 at 17:16

https://ia600502.us.archive.org/14/items/howtobuildaworkingdigitalcomputer_jun67/HowToBuildAWorkingDigitalComputer_Jun67.pdf

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Dr. Cockroach wrote 01/16/2019 at 18:28

Oh how I remember that book back in the 70's. I did manage to build the encoders and some of the other parts back then. I might just try again :-)

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Morning.Star wrote 12/11/2018 at 08:32

...And another for #Scrap Tools , thanks buddy :-)

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Dr. Cockroach

My Projects

The Cardboard Computer - IO is my name

LIGHT LOGIC - HIC SVNT DRACONES

LLTP - Light Logic Transistorless Processor

Magnetic Core Memory The Dr Cockroach Way

Shortwave Crystal Radio - A blast from my past

IO - The Inside Out Cardboard Computer - bis

Projects I Contribute To

Hackaday Journal of What You Don't Know

Hackaday TTLers

So You Want To Be A Hacker?

Cardware

Unformatted

Origaime (Cardware-bis)

My Pages

The Return Of The LLTP????

From Retired to Simi-Retired

Hot weather and staying inside

Projects I Like & Follow

Smartwatch 10 Years Ultra-Long Battery Life

Homebrew Computer & OS from modern MCUs

One kilobyte Tiny BASIC for the 8080 and Z80

3D Print Babbage's Difference Engine No.2

Commodore CHESSmate Reproduction

EasyNixie

SAO Core4 - A Nibble of Core Memory with I2C

SCARA Industrial Robot Projects

Lab Computer "Marina"

Shift Register Menorah

NED8PC

Marvin

Dissecting Low-Cost Electronics

Plantomation V1.0

Scary Sound Effect

SCABO: eco-friendly AR-enabled cardboard toys

Alpha Groot

Trash radio receiver

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Dr. Cockroach

My Projects

Projects I Contribute To

My Pages

Projects I Like & Follow

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