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The Dak Mark 4 Project

Radio Tech

Radio Operator
Sep 9, 2008
858
312
173
64
North Carolina
www.gokarters.com
After some thought of a base station radio, I finally think I have created something I like. I bought an old Dak mark 4 that was dead.

First oder of business was to strip the Dak. I then removed the power supply and installed a 20 amp supply. I had a nice superstar 3900 laying around so stripped it and installed the chassis. It was a nice fit. It is a single final version but that is ok.

Some of the modifications I am doing.
Varible power
10 kc jump switch
Connex echo board (from a original connex 3300)
Maybe, note I said maybe. Adding a small amp to the rig. I have a very small 50 watt amp I may install.

I am going to have to look around for a set of knobs so everything matches. Then figure out what to do with the dual knobs. They look a little out of place.

I will post some pics as it moves along and comes together.
 

After some thought of a base station radio, I finally think I have created something I like. I bought an old Dak mark 4 that was dead.

First oder of business was to strip the Dak. I then removed the power supply and installed a 20 amp supply. I had a nice superstar 3900 laying around so stripped it and installed the chassis. It was a nice fit. It is a single final version but that is ok.

Some of the modifications I am doing.
Varible power
10 kc jump switch
Connex echo board (from a original connex 3300)
Maybe, note I said maybe. Adding a small amp to the rig. I have a very small 50 watt amp I may install.

I am going to have to look around for a set of knobs so everything matches. Then figure out what to do with the dual knobs. They look a little out of place.

I will post some pics as it moves along and comes together.



Thats COOL!!
I would love to see some Pics.
 
I will try to post some pics tonight.

Still have a lot of cosmetic things to do.
Paint the cover, Strip the old lables and re-lable the front.
Get more knobs. Ect.

I put it on the air yesterday and got some great audio reports. So everything is working fine. Thinking of splitting the fine/coarse switchs for the clarifier. So there would be two seperate knobs. The dual ones does not match the rest.
 

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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.