Will be shipped USPS. Cost to ship each is $8.00. Nearly all were mfd during the 1930's.

Please contact me via email: Red90L98@yahoo.com

Thanks for looking!  Brad

1. Eveready Raytheon ER 280. 4 pillar plates. Tested on a Triplett 3444. Results: 50/46. Strong.  $100.00

2. Eveready Raytheon ER 280. 4 pillar plates. Tested on a Hickok TV-7/U. Results: 49/46. Strong.  $100.00

3. Majestic. Tested on a U.S. Army Signal Corps I177-B [Made by Triplett Instrument Co.]. Results: 1700 [min = 1500]. Strong. $50.00

4. Majestic. Wide plates. Tested on a Hickok 533A. Results: 110/110.
Very strong.  $70.00

5. Majestic. Wide plates. Tested on a Hickok 539C. Results: 51/48. Strong.  $50.00

6. RCA Radiotron. Late 1920's [between April 1928-March 1929]. Tested on a Dan Nelson calibrated Hickok TV-7/U. Results: 46/41.  $25.00

All have been sold, except for:

5. Majestic. Wide plates. Tested on a Hickok 539C. Results: 51/48. Strong.  $50.00 + $8 shipping.

Also, another one is available:

National Union NX-280 / 80. Rare slanted cylinder. Engraved lettering.
Wide plates. Tested on a Hickok 539C....Results: 42/41.  $55 + $8.00 shipping