Henry 4K
Home Up Alpha 86 Amplifier Alpha 91B Ameritron ALS 500M Solid State AMP Henry 4K Henry 2002A Henry 2006A Ten Tec Titan

 

Henry 4K-2 Amplifier

Henry 4K-2 Console - 80Meter amp

Runs 5CX1500A at 1,200 watts DC output

4K Pi Network

 5CX1500A/B & Tuned Input "Cans"

 

Operational Comments: Here are the tuneup setting I experienced on my amp.

Channel Freq. Range (Mhz) Tune Load Grid Current Plate Current DC Output Watts FREQ
1 26.0-30.0 34 103 10 800 1200 28.5
2 18.0-26.0 40 122 10 800 1200 21.3
3 12.0-18.0 63 155 10 800 1200 14.2
4 6.0-12.0 90 138 10 800 1200 7.2
5 3.75-6 146 142 10 800 1200 3.8
6 3.5-3.75 136 150 10 800 1200 3.5

I used this amp in RTTY contests at 1,000 watts output and it just kept on humming all day and night.  It never quivered a bit.  Very nice amp to use and excellent power supply.  Weighs about 150 pounds but had the 4 wheel Henry cart that really comes in handy.  Note that the above output was for RTTY or key down CW.  SSB PEP is considerably more as the amp is in the high voltage position.