2020-2024 Extra Class Audio BookGordon West, WB6NOA, Eric P. Nichols, KL7AJ, Pete Trotter, KB9SMG · First published 2020Open the Tome
2019-2023 General Class Audio Theory CourseGordon West, WB6NOA, Eric P. Nichols, KL7AJ, Pete Trotter, KB9SMG · First published 2019Open the Tome
2018-2022 Technician ClassGordon West, WB6NOA, Eric J. Nichols, KL7AJ, Pete Trotter, KB9SMG, Karin Thompson, K0RTX, Jim Massara, N2EST · First published 2018Open the Tome
2016-2020 Extra Class FCC Element 4Gordon West, WB6NOA, Eric P. Nichols, KL7AJ, Technical Editor, Pete Trotter, KB9SMG, Karin Thompson, K0RTX · First published 2016Open the Tome
Technician Class 2010-2014Gordon West, WB6NOA, Pete Trotter, KB9SMG · First published 2010Open the Tome
GROL+RadarGordon West, WB6NOA, Pete Trotter, KB9SMG, Eric Nichols, KL7AJ · First published 2009Open the Tome
