Search found 6 matches

by Ondra
Tue Sep 24, 2024 4:01 pm
Forum: For Sale / Wanted
Topic: SALE Jupiter GPS receiver TU30-D160
Replies: 3
Views: 226

Re: SALE Jupiter GPS receiver TU30-D160

Can you supply the antenna ? How much cost shipping to Poland ?
by Ondra
Tue Sep 12, 2023 4:45 pm
Forum: Digital circuit w/o MCU
Topic: I need a frequency standard
Replies: 4
Views: 4295

I need a frequency standard

hi to everyone,
from time to time I need a frequency standard for calibration etc. I found many circuit diagrams on the Internet. All are 10 MHz, but some I doubt the precision. I would like to know what is the best method to get a 10MHz signal for calibration test instruments.
by Ondra
Sun Jul 30, 2023 9:55 am
Forum: Computer Asylum
Topic: tape drive on the HP-85
Replies: 2
Views: 2433

tape drive on the HP-85

I found another problem with my HP-85. The cassette won't rewind, but the tape drive motor is whining, don't know what to do about it?
by Ondra
Sat Jul 29, 2023 5:51 pm
Forum: Computer Asylum
Topic: Stiff keys on the HP-85
Replies: 2
Views: 2386

Stiff keys on the HP-85

I have an HP-85 computer and some keys do not come back when pressed. But the keys work. When I press the A key for example, the key stays down and the letters A's quickly jump on the screen until I lever the key back up. Does anyone know how to fix this problem?
by Ondra
Thu Jul 27, 2023 8:09 am
Forum: Simulation software
Topic: I2C simulator
Replies: 3
Views: 2352

Re: I2C simulator

there is a software simulator in Basic for the Diablo16 processor (displays 4D). You can immediately see what is happening on the display.
by Ondra
Mon Jul 03, 2023 7:22 pm
Forum: C / C++
Topic: test of data bus
Replies: 4
Views: 2353

Re: test of data bus

so what is coming back to you?