Difference between revisions of "Davac4"

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(Circuit diagram)
 
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=Davac 4.0 OK1ZIA=
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=Davac 4.1 OK1ZIA=
  
Davac 4 was succesfully built by OK1USW, OK1UGE and OK2JTB.
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Davac 4.1 is updated version of [[Davac4.0|Davac 4.0]] designed in 2008.
 +
 
 +
{{warning|I'm working on Davac 4.2 - simpyfied, SMT for easy assembly, 3D printed box. Please consider to wait until construction verify (May/June 2022).}}
 +
 
 +
==News==
 +
* IRLML2246 instead of IRF7220
 +
* Silscreen cleanup
 +
* Values on silkscreen
 +
* Jack holes are 2 mm
 +
* Guard ring connected to GND
 +
* Manufacturing data for [http://jlcpcb.com jlcpcb.com] included
 +
 
 +
==Errata==
 +
* Optocouplers are TLP627, not PC817 (error during convert Eagle -> KiCad)
 +
* Headphones have GND connected to hot and vice versa. I recommend skip REL2 and connect radio to headphones directly
  
 
==Circuit diagram==
 
==Circuit diagram==
Line 8: Line 22:
 
==PCB==
 
==PCB==
 
<gallery mode="packed" heights="320px">
 
<gallery mode="packed" heights="320px">
Image:Davac4b600.png|PCB bottom side (600 DPI)
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Image:Davac4.1top.png|PCB top/THT side
Image:Davac4oa.png|Components placement top
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Image:Davac4.1bottom.png|PCB bottom/SMD side
Image:Davac4ob.png|Components placement bottom
 
 
</gallery>
 
</gallery>
Note: 600 DPI have images in Full resolution, MediaWiki uses thumbnails.
 
  
==PCB www.hamshop.cz==
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{{Download|Davac4.1-jlcpcb.zip}} Gerber files to order PCB at [http://www.jlcpcb.com jlcpcb.com].
[[File:Davac4hamshop.jpg|320px|link=https://www.hamshop.cz/pcb-c7/pcb-davac4-ok1zia-i358/]]
 
  
Ondra OK1CDJ has made PCBs and offers it at [https://www.hamshop.cz/pcb-c7/pcb-davac4-ok1zia-i358/ www.hamshop.cz]. Many TNX!
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If you have extra pcs and want to help other Tucnak users, let me know, I will announce here.
 
 
===Errata===
 
* Jack holes are slightly smaller - user Dremmel milling cutter
 
* Parts values would be shown - use schematic
 
  
 
==Parts==
 
==Parts==
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Click Options, List All Devices.
 
Click Options, List All Devices.
  
Keep '''libusbK''' and press '''Install Driver'''.
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Choose '''WinUSB''' and press '''Install Driver'''.
 
 
=SMT variant by OK2JTB=
 
<gallery mode="packed" heights="320px">
 
Image:davac4-ok2jtb-front.png|Top side
 
Image:davac4-ok2jtb-back.png|Bottom side
 
Image:davac4-ok2jtb-back-1.png|Photo 1
 
Image:davac4-ok2jtb-back-2.png|Photo 2
 
Image:davac4-ok2jtb-front-1.png|Photo 3
 
Image:davac4-ok2jtb-schema.png|Schematics
 
</gallery>
 
 
 
All data: [[File:Davac4-ok2jtb.zip]]
 
 
 
If you want this PCB, try to ask OK1WMR.
 
 
 
=Made by OK1UDC(SK) &amp; OK1UGE=
 
<gallery mode="packed" heights="320px">
 
Image:Davac4_UDC_UGE_1.JPG|Front panel
 
Image:Davac4_UDC_UGE_2.JPG|Back panel
 
Image:Davac4_UDC_UGE_3.JPG|Components side
 
</gallery>
 
 
 
''Note OK1ZIA: better use USB-B type connector''
 
 
 
 
 
=Combined Davac4 and contest machine RPi=
 
Guys from OK1RPL made this amazing compact contest solution.
 
<gallery mode="packed" heights="320px">
 
Image:IMG_20190122_144139027.jpg
 
Image:IMG_20190123_185415964.jpg
 
Image:IMG_20190123_185427268.jpg
 
Image:IMG_20190123_191712849.jpg
 
Image:IMG_20190131_112445866.jpg
 
Image:IMG_20190131_112456794.jpg
 
</gallery>
 

Latest revision as of 20:08, 17 April 2022

Davac 4.1 OK1ZIA

Davac 4.1 is updated version of Davac 4.0 designed in 2008.

Warning Warning:

I'm working on Davac 4.2 - simpyfied, SMT for easy assembly, 3D printed box. Please consider to wait until construction verify (May/June 2022).

News

  • IRLML2246 instead of IRF7220
  • Silscreen cleanup
  • Values on silkscreen
  • Jack holes are 2 mm
  • Guard ring connected to GND
  • Manufacturing data for jlcpcb.com included

Errata

  • Optocouplers are TLP627, not PC817 (error during convert Eagle -> KiCad)
  • Headphones have GND connected to hot and vice versa. I recommend skip REL2 and connect radio to headphones directly

Circuit diagram

Circuit diagram of Davac 4.1

PCB

Davac4.1-jlcpcb.zip Gerber files to order PCB at jlcpcb.com.

If you have extra pcs and want to help other Tucnak users, let me know, I will announce here.

Parts

Transformer TR-1/1 www.tme.eu

Jack 6.35 K3606D www.gme.cz or K36092B

White connectors for cable pins

Black connectors for cable flat cable

Program the FT232R

As default, the FT232R acts as serial port. But Tucnak uses Libftdi to access it in bitbang mode. Default VID:PID must be changed to distinguish Davac from other USB serial ports.

Linux

I'm pretty sure you can use ft232r_prog. But I have no experiences with it. If you try it, please let me (OK1ZIA) know, I will update this information.

Windows

MProg with loaded Davac4.ept

Under Windows, use MProg. Download File:Davac4.ept and open it in MProg. Note on Windows XP you need D2XX drivers; on newer versions they are installed automatically.

Unplug all other FTDI devices and press the Program All Existing Devices button.

Install USB drivers

Linux

You have nothing to do, It will work automatically. Only on specific distributions you may have to set permissions to USB device, which is normally done by udev script.

Windows

Zadig with Davac4

Under Windows 7 or newer, use Zadig. On XP use 2.2.

Click Options, List All Devices.

Choose WinUSB and press Install Driver.