ER #384, June 2021


Issue Contents

2The Geloso R 209-R ReceiverDave Gordon-Smith, G3UUR
14The Importance of Preventing Switch Surge DamageER Readers,
18Using the Military MD-522/GRC Modem in Amateur RTTYRon Boltz, K3TZJ
23Must-Have Helpers for the BenchBob Sullivan, WØYVA
24Restoring the RCA Ampliphase Transmitter, Part 1Steve Fraasch, KØSF
32Vintage NetsER Readers,
33Classified AdvertisingER Readers,