Monthly Meetings

RadioActivity 2024

Thursday, June 13th – Saturday, June 15th,
Annapolis, MD


Theme – “MAARC’s 40th Anniversary”



To download a copy of the application form, Click Here.


RadioActivity 2024 Schedule
At The Byzantium, Annapolis MD

Thursday June 13
5:00 to 7:00 pm – Registration desk opens.
7:00 pm – Auction consignment ends
7:30 to 9:00 pm – Tube, ephemera, & literature auction

Friday June 14
6:00 am – Conference Registration Desk and Flea Market opens
9:00 to 11:00 am – Old Equipment Contest entry log-in
11:00 am to noon – Seminar: “Computers 40 Years Ago” – Wyatt Circo
Noon to 1:00 pm – Old Equipment Contest judging
1:30 to 2:30 pm – Seminar: “The Introduction of Miniature and Loctal Tubes” – Paul Hart
2:30 to 3:00 pm – Contest Viewing
3:00 to 4:00 pm – Seminar: “The ZOTL (Zero Hysteresis Transformer Loss): An Alternative to the Output Transformer for Hi Fi Tube Amplifiers” – David Berning
4:00 to 6:00 pm – Contest Viewing
6:00 pm  – Social Hour
7:00 pm – Banquet begins. Panel discussion, 40 Years of MAARC With MAARC”s past presidents
1 hour after the banquet – Old Equipment Contest Viewing

Saturday June 15
7:00 am – Registration Desk and Flea Market re-opens
8:30 am  – Walk-around auction All vendor areas
8:30 to 11:30 am – Auction consignment check-in
9:30 to 11 am – Ed Lyon’s Radio Repair Clinic (“AVC Issues and Answers”)
11:30 am – Auction consignment closes. All entries must be logged in
Noon – Main Auction

The April and May issues of Radio Age contained an insert with all the RadioActivity details and an application form. The application form also contains details regarding the Old Equipment Contest, Auction and Flea Market Policies, and local hotels. To download a copy of that insert, Click Here.

For the second year we will have RadioActivity vendor spaces inside, with air conditioning! Vendors may register for spaces in the parking lot ($20 for two spaces) on the covered patio ($25 for one space and table), or inside the gymnasium ($30 for space and one table). Additional tables can be rented. Only venue tables maybe used in gym and patio. One advance notice: The Byzantium does not allow food or drink in the gym at any time. The number of inside spaces is limited, so register early. Use the registration form insert in the April and May issue of Radio Age, or to download a copy of that insert, Click Here.

The indoor auctions feature some of the best items of the year. Our auctioneer will take the Saturday morning walkaround auction to all the vendor spaces.

There are several hotels within five minutes of the Byzantium venue. See the insert for further details.

Old Equipment Contest Categories for RadioActivity 2024

1. Theme: Atwater Kent 84 (MAARC Logo) radios
2. Theme: Radios from 1940
3. Theme: MAARC ephemera from 1984
4. TRF radios (Three dialers to 1940’s bargains)
5. All-American Five radios (Octal or 7-pin min.)
6. 1984 Computer gear (Radio Shack, IBM, etc.)
7. Battery-powered radios (battery only, not radios that can also be plugged in)
8. BC band camouflage-finish and Beetle radios
9. Lazarus radio (before and after restoration documentation important)
10. 100 year-old radios (1924)
11. Cathedral and tombstone radios
12. Audio equipment (mics, speakers, amps, tuners, etc. but NOT recorders)
13. Reproducers (phonographs, wire recorders, tape players, etc.)
14. Pre-WWII TVs (mechanical, military, closed-circuit, etc.)
15. Open (can include “as seen in Radio Age”)

Where is it Located?




Registration Area


Auctions and Presentations (in reconfigured Banquet Room)


Indoor Air Conditioned Vending Area


Covered Outdoor Vending Area 


Outdoor Parking Lot Vending Area (adjacent to Covered Vending)




Nearby Hotels


More details to follow as they are firmed up.

By Dave Rossetti

MAARC member since 2013. My thing is tube testing.