Re: Mystery 30 Meter Qrp Rig

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Posted by:  Yiannis Giannarakis

Posted On:  12/11/01

Subject:  Re: Mystery 30 Meter Qrp Rig

Message Posted:
    In Reply to: Mystery 30 Meter Qrp Rig posted by Blake Kilburn KI6US on 12/07/01

Check This ...

Mike Czuhajewski, user of the UniBoard System @ wb3ffv.ampr.org
E-Mail: Mike.Czuhajewski@hambbs.wb3ffv.ampr.org
The WB3FFV Amateur Radio BBS - Located in Baltimore, Maryland USA
Supporting the Amateur Radio Hobby, and TCP/IP InterNetworking

Who wrote...
"...For comparison, I checked a kit version of the W7EL Optimized QRP
Transceiver (from Small Parts Center, which is no longer in
business). That rig uses a 5-pole low pass filter between the output
transistor (2N3553) and antenna connector. Running close to 2 watts
output on 40 meters, I saw about 28 volts peak to peak at the
collector of the 2N3553, in the center of the filter, and at the
output."

Link:  http://www.ibiblio.org/pub/academic/agriculture/agronomy/ham/QRP/QRP-HINTS-AND-KINKS/hw8core1.txt


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