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Old 20th Jun 2022, 10:55 am   #77
regenfreak
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Join Date: Nov 2018
Location: London SW16, UK.
Posts: 655
Default Re: 6-gang FM stereo tuner heads

Quote:
Originally Posted by Radio Wrangler View Post
Be careful not to judge baluns entirely on VSWR. Loss can be important.

A 50 ohm resistor or 75 ohm has wonderful VSWR!

David
That's true.

vk6ysf web site is still down. His design his 5 windings Ruthroff voltage transformer and is relatively easy to wind. It has a measured VSWR of 1.

This is an alternative 5-windings 6:1 design which shows a VSWR of about 1. It is more complicated to wind than vk6ysf version.

http://www.spirat.com.au/vk5zvs/pic32.htm
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