Search found 19 matches

by JPLRMD
Mon Sep 30, 2024 12:14 pm
Forum: Admin messages
Topic: PayPal payments
Replies: 11
Views: 938

PayPal payments

regrettably due problems with PayPal we don't accept payments via PayPal . At PayPal site are many restrictions resulting in insecure payments. Return a payment to payer is no possible, etc etc. We discovered some bugs on PayPal web site. E.g. to upload a requested document on PayPal web site is no ...
by JPLRMD
Tue Aug 06, 2024 10:22 am
Forum: User projects
Topic: DIY 10 MHz frequency standard
Replies: 0
Views: 483

DIY 10 MHz frequency standard

Precisious 10 MHz frequency standard made into Starbucks Chocolate canee delivers sinewave signal 7V pp with 0.01 Hz resolution. The canee contains thermostated oscillator powered by DC supply 12V.
DiY Precisious 10MHz frequency standard
DiY Precisious 10MHz frequency standard
BH5016SB-2.jpg (203.04 KiB) Viewed 483 times
The Racal Dana counter (model 1998) is gated with 1 sec.
by JPLRMD
Wed Feb 28, 2024 9:35 pm
Forum: Digital circuit w/o MCU
Topic: serial connection to LCD with HD44780
Replies: 1
Views: 767

Re: serial connection to LCD with HD44780

yes, I have simple solution based three TTL cuircuits (UART and one 8-bit latch and one 4-bit latch) and one RS232C driver (MAX232C). Alternatively, an FTDI USB-serial-TTL circuit is possible for the USB port instead of MAX232C. I have added this project to the web: http://www.jplabs.co.uk/projects/...
by JPLRMD
Sat Dec 09, 2023 8:39 pm
Forum: Tools and Manufacturing Equipment
Topic: Microe easyPic development boards
Replies: 2
Views: 4942

Re: Microe easyPic development boards

Mikroe uses WinStar WDG151 display. This display has different pinout as standard 128x64 LCD.
by JPLRMD
Sun Nov 26, 2023 8:36 am
Forum: EdwinXP
Topic: how to make montage holes
Replies: 1
Views: 2259

Re: how to make montage holes

It is best to create the mounting hole as a component with a pin/hole. For the schematic symbol, use the test pin symbol or list 1 pin or create your own. The case is important. The case is the hole. Save it as a mounting hole case. Then put the symbol and case together and create a new component, m...
by JPLRMD
Sun Nov 26, 2023 8:20 am
Forum: Components
Topic: unknown SMD component
Replies: 3
Views: 4249

Re: unknown SMD component

by JPLRMD
Fri Oct 13, 2023 7:31 am
Forum: Admin messages
Topic: registration rules
Replies: 0
Views: 3870

registration rules

Registration in this forum is not automatic and must be approved by the administrator. Registration is charged and costs £15 paid prior registration as donation. Mail us prior registration for more details. Users with emails on Google-provided public domains (gmail, yahoo, hotmail, etc etc) cannot ...
by JPLRMD
Fri Aug 25, 2023 12:39 pm
Forum: Admin messages
Topic: languages on this forum
Replies: 0
Views: 3184

languages on this forum

Please use English as the primary language in this forum. Other accepted languages ​​are German and/or French. Your posts and comments in other languages ​​will not be accepted.
by JPLRMD
Sun Aug 13, 2023 12:25 pm
Forum: Computer Asylum
Topic: HP-9825 interface pinout
Replies: 1
Views: 2389

Re: HP-9825 interface pinout

the schematic for HP-9825A is available for download in our library. Use please your credentials for this forum.
by JPLRMD
Wed Aug 02, 2023 4:32 pm
Forum: Digital circuit w/o MCU
Topic: calculator Tesla OKU 103
Replies: 1
Views: 2414

Re: calculator Tesla OKU 103

the Tesla OKU 103 wiring diagram can be downloaded from our library. Use your Microfora login.