HQ-180: A Big Noise Problem Means Drain the Swamp By Tom Taylor About the time of the Chevrolet 409/427 engine, when the Shiffons and the Beach Boys played on your car dial and NASA’s Mercury program enthralled the public, there was an 18 tube receiver by Hammarlund known as the HQ-180 which could be Read more about HQ-180: A Big Noise Problem Means Drain the Swamp[…]
HVRA TEXAS CITY MEGA AUCTION JULY 7, 2018 RECAP and OBSERVATIONS BY JERRY SIRKIN (VP) Well if you’re like me, after 40+ years of collecting vintage radios, there’s always another good deal somewhere. That feeling was shared among 60 registered participants for our 2018 Annual Mega Auction. We had 35 HVRA registered members present and Read more about 2018 July Mega Auction in Texas City Results[…]
THE SODION TUBE: Scamming Around the De Forest Patents by Ron Soyland Editor: Lee de Forest is one of the great four founders of radio. His Audion tube moved radio forward by leaps and bounds. Ron Soyland here describes one of the unfortunate offshoots of deForest’s success! Back in the early days of radio there Read more about THE SODION TUBE: Scamming Around the De Forest Patents[…]
Replacing A Tuning Indicator Tube (EM 85) With An EM 80 By Bill Werzner A few weeks ago I finished restoring a Grundig model 7085 AM FM stereo console that was manufactured in 1956/57. This radio required a good cleaning inside following my air compressor blasting away the heavy build up of dust. The switches Read more about Replacing A Tuning Indicator Tube (EM 85) With An EM 80[…]
Converting a Philco Dial Lamp Assembly to an LED By Bill Werzner If you have ever been confronted with a deteriorated vintage radio dial lamp assembly you will understand where I’m coming from. This dial lamp problem was one I had to address in order to complete my restoration of a Philco tombstone model 610. Read more about Converting a Philco Dial Lamp Assembly to an LED[…]
HVRA Membership The HVRA board has approved a new membership renewal process. Currently, we have membership renewals that occur every month depending on the date they joined HVRA. This is being changed to all members having a renewal date of January 31 each year. We need to do this because the effort required to manage the current process Read more about Important New Membership Dues Information[…]
2017 Christmas Party (J. Sirkin) HVRA held its annual Christmas Party on December 15th at the Hobby Airport Hilton Doubletree Hotel. Although the planned start time of 6:30 was delayed by Friday evening rush hour, Bill Werzner began his opening remarks to a group of 46 members, their families and guests just after 7PM. Bill Read more about 2017 Christmas Party Fun![…]
A Fishy Story…. By Steven Pena, HVRA Historian It was not without some small degree of disappointment that I heard the birds chirping that Saturday morning, announcing that, though it was still rather dark outside, it was already time to rise for our July club meeting. My wife reminded me that I was to take Read more about A Fishy Story…. By Steven Pena, HVRA Historia[…]
Understanding How a Tube Works by Tom Taylor In an effort to help our new members understand the action of a tube we would like to offer a mechanical perspective of its action. If we think of the VOLTAGE across a resistor increasing and decreasing in accordance with the CURRENT changes through it (using the Read more about Understanding How a Tube Works by Tom Taylor[…]
Understanding Negative Bias by Tom Taylor Let’s talk negative for a moment and for clarity the topic is about radios with power transformers. I for one hesitate once in a while when looking at a schematic while trying to sort out how and why a negative voltage is generated in the circuit. Take a look Read more about Understanding Negative Bias by Tom Taylor[…]