W9DYV Amateur Radio Symposiums

Presentation on the Collins S-2 Line by David Beckler, N0SAP, at the W9DYV Radio Symposium in Slidell, Louisiana. For More Information: http://www.ce-multiphase.com/ Video by: Albert Dupont, W5AFD

Presentation on a brief History of Drake Radios, the Drake TR7B, Drake TR8 and Drake L85 prototypes by David Assaf III, W5XU, at the W9DYV Radio Symposium in Slidell, Louisiana. For More Information: http://www.ce-multiphase.com/ Video by Albert Dupont, W5AFD

Presentation on High Performance HF Amplifier Construction by Ron Scalise, WA5ZFP, at the W9DYV Radio Symposium in Slidell, Louisiana. For More Information: http://www.ce-multiphase.com/

Presentation on the 630 Meter Amateur Radio Band by Rob Sherwood, NC0B, at the W9DYV Radio Symposium in Slidell, Louisiana. For More Information: http://www.ce-multiphase.com/

A Presentation Forum Given @ W5SLA HamFest / W9DYV's Amateur Radio Symposium of 2019 in Slidell, LA

Presentation on Input Voltage Considerations for Boatanchor Equipment by David Assaf III, W5XU, at the W9DYV Radio Symposium in Slidell, Louisiana. WHEN THE BOATANCHOR CLASS EQUIPMENT WAS MANUFACTURED, THE INCOMING AC VOLTAGE WAS LIKELY LOWER THEN AS NOW AVAILABLE IN YOUR SHACK. THIS EQUIPMENT HAD SPECIFIC AND LOWER VOLTAGE REQUIREMENTS SUCH AS FOR FILAMENT USE AND PLATE VOLTAGES FOR TUBES, PILOT LIGHTS, ETC. THE USE OF SUCH EQUIPMENT ON THE PRESENT DAY VOLTAGES AVAILABLE AT THE RECEPTACLE LEVEL RESULTS IN HIGHER THAN NORMAL VOLTAGES INSIDE THE EQUIPMENT. THIS OUT OF NORMAL CONDITION GENERALLY RESULTS IN INCREASE HEAT GENERATED, ADDITIONAL STRESS ON ACTIVE DEVICES AND GENERALLY SHORTER COMPONENT LIFE. SINCE SUCH COMPONENTS ARE BECOMING SOMEWHAT HARDER TO FIND AND AT AN INCREASED COST, THE EFFECT OF USING OUR OLDER EQUIPMENT RESULTS IN ITS SLOW DISTRUCTION AND USE UNLESS WE CAN OPERATE AT THE INTENDED INPUT VOLTAGE LEVELS. WE SHALL REVIEW THIS ISSUE AND REVIEW SOME REMEDIES THAT WILL HELP TO ADDRESS THE PROBLEM. For More Information: http://www.ce-multiphase.com/

Presentation on Understanding Speech Articulation by Dr. Bob Heil, K9EID, at the W9DYV Radio Symposium in Slidell, Louisiana. For More Information: http://www.ce-multiphase.com/

Presentation on Low-Band Receiving Antennas by Ted Saba, KN5O, at the W9DYV Radio Symposium in Slidell, Louisiana. For More Information: http://www.ce-multiphase.com/