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SB-220 6 Meter Output
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Keith, N4ZQ
Mon Apr 18 2011, 05:41PM
Registered Member #1526
Joined: Mon Apr 18 2011, 05:10PM
Posts: 0
 Has anyone done the 6 meter conversion that appeared in a QST Hints and Kinks many many years ago. The one where you take a few turns off the 10 meter input coil and change the caps. Also you had to re tap the the Output Tank Coil. I was wondering what kind of output power on 6 I could expect to see after this simple mod.

Keith
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Trev, G3ZYY
Tue Apr 19 2011, 08:17AM
g3zyy

Registered Member #13
Joined: Tue Mar 18 2008, 01:43PM
Posts: 6
 Hi Keith, I believe our resident expert on this conversion is Ian G5WQ. If he doesn't pick up this thread you might drop him a Private Message via the site; he has a lot of experience with this type of conversion.
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Mark, CT1FJC
Wed Apr 20 2011, 07:58PM
Registered Member #287
Joined: Sat Apr 19 2008, 12:14PM
Posts: 0
 Hello Keith
See my mod photo's, Yahoo SB-220 group.
Take note of tank circuit tap point.
Good luck, 73 Mark CT1FJC
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Per, LA7DFA
Thu Apr 21 2011, 01:27PM
Registered Member #189
Joined: Sun Apr 06 2008, 04:05PM
Posts: 0
 I modified a SB220 10 years ago. I made mine a monobander. To reduce the minimum tuning capacitance, I removed every second plate on the two variable capacitors.
The output was 1kW with some old tubes. ^¨^
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