Forum

Help with building a roller coaster ATU

  • 2E0GXX
  • 2E0GXX's Avatar Topic Author
  • Offline
  • Administrator
  • Administrator
More
5 years 11 months ago #111 by 2E0GXX
I am looking to build a roller coaster atu, I already have the big Inductor and 2 Capacitors,.
I really need a circuit diagram for a high power unit 1.5Kw+ , If possible I'd love the unit to have a couple of coax inputs, a bypass, a balanced wire input and if I am pushing the boat out a built in 4:1 balum.

I know this may seem I am asking a lot but as I can not afford to spend the £250+ for a good atu, I would like to build something that will last me for years and be cheaper than buying one, but also give me great satisfaction in building and using it

Regards
Ian
M3GXX

Please Log in or Create an account to join the conversation.

More
5 years 11 months ago #113 by g0lgj
Replied by g0lgj on topic Help with building a roller coaster ATU
Hi Ian various books in the club library with circuits and designs for what you need, contact myself or any other committee member for loan of said books.

73 de Mark G0LGJ

Mark Taylor G0LGJ
Tel 01362 691099 18:00 - 22:00
www.g0lgj.co.uk
www.norfolkamateurradio.org Norfolk Amateur Radio Club

Please Log in or Create an account to join the conversation.

More
4 months 4 weeks ago #695 by G0KBN
Replied by G0KBN on topic Help with building a roller coaster ATU
Hi, did you find it easy to locate a suitable turns counter? I'm doing a similar homebrew but I'd like a turns counter so that I can log the roller coaster approx position for each band. I think this would speed up getting an inductance match for the rig.
Cheers
Graham G0KBN

Please Log in or Create an account to join the conversation.

Time to create page: 0.196 seconds