hope this e mail finds you well. I have some questions I'm hoping you can help me with. Firstly, The sound for model 4 I have the CR 81 hooked up to the 5 din in the back of the model 4 and I have my speakers hooked into the Mic on the Cassette player. Using the games on floppy disks gives me no sound. When I use cassette I rewind the tape to play first game for example, I turn on computer, hold break key and reset button, type L , press enter, then type system and lastly, type in name of game hit enter and wait to load. My question is when do I turn on cassette? is it after I type in the name of game and hit enter/ or at the same time?I do know it has sound . But this is all new to me.I've watched so many of your videos! So good!! Grateful for any help.

Thanks so much!

I stumbled upon your youtube channel. The videos there are great! I then wondered if you were still active and I found this website. Thanks for all the information you present on all these retro computers!

Hi Terry, I have acquired an old Apple ][ europlus complete with a load of disks, manuals and the double drive. It all seems to be working except the red light on Drive 2 doesn't come on and there's no monitor. Whats your best advice for getting it checked/fixed and connecting a monitor please?

Hi Terry,

I’ve now watched all of your nice both interesting and informative videos. Thanks so much for all the work you put into these. Nowadays I watch the videos for falling asleep because of your - now familiar - calm voice. Thanks again and

All the best,
Fritz

Hi Terry,

I’ve now watched all of your nice both interesting and informative videos. Thanks so much for all the work you put into these. Nowadays I watch the videos for falling asleep because of your - now familiar - calm voice. Thanks again and

All the best,
Fritz

Hi Tezza,

I really enjoyed your site and youtube videos. I was wondering if you might be able to help me figure out what this GIF is [giphy.com] I do not think it is a dos computer as the title suggests but a terminal and dot matrix printer, but I cannot for the life of me figure out the brand or model. Do you recognize it? Thank you again.

Compute in Good Health!\

Had many computers, from the first generation TRS80 Model 1, and many systems since. Was manager of Tandy Computer Repair for a while, then ran my own PC manufacturing.

My first computer was an Ohio Scientific C4P. I received it as "payment" for writing the documentation and collaborating with development of an early word-processing program, WP6502. I'm writing an autobiographical account of that time in 1980-81 and would like to use your photo of a C4, as I made the mistake of giving mine away a long time ago. My autobiog is strictly a non-profit venture so I hope you won't mind sharing your photo with me.

I have fond memories of the System 80 as my first computer. I bought business System 80 brand new for about $1200 in early '82 from Smith City Market. I figured that since I had a couple of tape recorders already that the additional lower case and numeric keypad would be more useful. The first game I wrote was a worm that increased in length and died when it hit itself. Next was firing at a randomly dancing * on the screen. Used it for essays at university too. Replaced it eventually with a C64.

Good information. Thanks for sharing.

Thoroughly enjoy the YouTube videos which you have created and shared! Great format, history, etc. I really appreciate you and all the effort that you put into these.
Came here to see the website and very glad too that you created this Guestbook to give us all an opportunity to say...
Thank you!

Well done Tezza. Checking what is in my shed during this Covid lockdown and uncovered various old (mostly IBM) systems I've stored over 40 years. Reading your projects file to see if I can resurect any. Also ondering what is on those old floppy diskettes there...

My two System 80's are going good. I had the keyboard units recapped but not the expansion units. The cassette model is my own machine the other is the business model, I had to put in 32k of ram chips and a new z80 chip for it to work. Long gone are the 51/4" drives instead I use a 10to 12 twist on the ribbon cable with 31/2" standard PC drives. Also gone is the old drive power supplies now using that small 5v chinese brick. I still use my DSmith B&W screen but the System 80 gives a great display on an LCD Digitor TV screen. My Colour Genies are up and running the Gnomic Wizard disk interface is the same as the P1000 except they add an extra small board to contain a loader ROM. My chips also have the numbers sraped off them.I use Microdos in both the System 80/Colour Genie and my own loaders with m/c games.

Hi Terry, I was perusing my bookmarks and found your amazing web you-tube presence again. The pure nostalgia and easy going delivery of the information contained in the videos is a remarkable feat in both nostalgia and content.

Cheers
Dave G

Hi Terry. Awesome site. I really enjoyed perusing it. I've created a page with links to a lot of your software that will run in Peter Phillips' emulator on my web site. You're welcome to copy those links over to your site.
[willus.com]

Just found your site. Wonderfull!
I'm in locked in in Welly, perfect time to try to connect 3D glasses to my SGI Indy.

I found the hack to solder a button battery ontop of a Dallas clock chip to be delightfully deranged.

Cheers,

Thijs

Thank you very much for this amazing work :)

Excellent web site. Much information I was not aware of.
I had/have a System 80 - it was my first computer. I'm going to try and turn it on after 40ish years but I'm going to check the capacitors first. The Dick Smith Green Screen Monitor I have still works so I'm hoping the System 80 will as well. Wish me luck.

Hi tezza, Im trying to troubleshoot my system 80, i checked the voltages on the output from the PSU and they are higher than i exptect, essentailly they should be -15v +15v gnd +8v

I get -21v +2v gnd +8v I was wondering fi you know what the normal tolerance was for the cpu board ?

Cheers.

Went true your Collection but NO AIM65 on the list.. hihi

So your list is not complete yet...