Repairing An R-390A, The Best Comm Receiver Of The Tube Era Part 1

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 1

Gregory Charvat

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 2

Gregory Charvat

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 4, on the air

Gregory Charvat

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 3

Gregory Charvat

R-390A Amelco Military Receiver

Steve Ellington N4LQ

R-390A Basic Repair and testing

Collins R390A/URR overhaul / Gear assembly after cleaning

R-390A Receiver Testing

Steve Ellington N4LQ

Reassembling R-390A

Steve Ellington N4LQ

R 390a radio ground fault solution

Collins R-390A Receiver

R-390A With SSB Adapter by TreeTop Circuits SB-390A

Steve Ellington N4LQ

Collins R-390 Receiver

Steve Ellington N4LQ

Collins R390A Video #4 - IF Gain Adjustment R519

Jim's Radio Shop

Collins R-390A /URR receiver No 2

Collins R390A Video #1 - Repair and Quick Tune Up

Jim's Radio Shop

Collins R-390a dial calibration zero set demo