Recent content by vanderk

I learned MBASIC years ago as a kid on my Kaypro. I decided to dust off the old MBASIC handbook and write a few applications. I just finished a Hurricane tracking program, which I've been using to track Debby as it approaches us in Florida. The program uses linear and exponential weighting...

Persistence pays off... there is a review of the Turbo Board in Profiles v2n5 issue (page 51). Here is a portion of the review that goes over installation--looks like pin 8 of u67 must be cut or pulled away. I am guessing the clip goes to pin 5 of U86 for the 5 MHz clock (the article doesn't...

Hi. I recently acquired an Advent turbo board for the Kaypro II. It includes the toggle switch and a jumper. I am very familiar with the Kaypro speed up mods but was hoping someone had more information on this board. What modifications am I making to the motherboard when installing this upgrade...

Hi. I attempted to email Gene of the Retrocomputing Archive and his email was returned. The site shows geneb@deltasoft.com I've emailed him in the past. Is he still accepting contributions? I have some rare commercial CP/M goodies for the Kaypro that are not listed on his site Chris

Hi! I've been brushing up on my MBASIC and developed some interesting programs. One is a hurricane tracking tool that provides a projected path storms/hurricanes on an ASCII map with a range of relevant data, save/load data, etc. It also afjusts the track based on the influence of nearby...

I am obviously late to the Kaypro FreHD party but spent sometime last night reading an earlier, very comprehensive (and sometimes confusing) thread on the Kaypro and FreHD. I was unable to find a schematic or detailed information on the Z80 "piggy back" board to interface the Kaypro II-83 or...

I have been working on two Astec Kaypro power supplies (AA12450 and AA12350) on and off for the better part of a year or so. I simply cannot get them working! Both units have been totally recapped, resistors checked, and I even replaced all the transistors to include the power transistor...

I've had this card for sometime and figure it could be used for someone's restoration/rebuild project. This is a DTK 8 bit MINI MICRO FDC PII-151B floppy controller card. It supports 1.44MB, 1.2MB, 720KB, and 360KB floppy drives. This will permit you to use high density floppy drives in your...

Of course! It is an Intel (yes manufactured by Intel) 386/16 SYP-301 from 1987/1988. This is a rather uncommon computer; very little documentation available on the Internet. I will be adding a 1.44 and 1.2 floppy drive. Hard drive will be a 60MB MFM. The computer is built like a tank and in...

Hi! I am looking to purchase a functioning clone or brand name 386SX or DX computer for my collection: desktop or tower and any processor speed. I have no specific hardware requirements. Thank you, Chris

Hello. I still use my Kaypro and other CP/M computers for occasional word processing (I love WordStar) and am looking for a copy of Random House Thesaurus for CP/M. This was a real nifty utility and quite ahead of its time--very useful! Anyone have a copy they'd like to sell? Thank you! Chris

I've come across two makers of the LED boards. Mine were made by "Hu's" and include a 2.5 digit display (s-305H) and two digit display (S-305). Jumpers are very similar for the two with the exception that the S-305H has an additional column for hundreds. Anyway, here is a scan of the instructions.

I have a three digit (1xx) clock speed display that has several segments not functioning (yes, the jumpers are set correctly). Does anyone know a source for these boards/displays? I guess I could replace the three digit on the board with some patience and carefully soldering, but finding a...

Let me preface: please don't try this at home! Okay, I figured it out!!! I had to draw a diagram to figure this mess out. The wiring color for the switches was throwing me off--I had to recall that line is "in" and load is "out". The switches' line-lite (green color in picture) goes to...

Hi. I recently pick-up a monitor stand (Porta Micro Mate) made in the 80s by SOS computers that was designed for the Commodore 64 and Kaypro computer. It is very functional but the surge protector and switches were not wired at all (appears someone disassembled the stand at some point and...