repairing of EKV13 receiver from VEB Köpenick from GDR, produced in 1973
change all electrolytic capacitors of EKV13
testing repaired and modified TL 922, built in soft-start, vacuum relay and new suppressors on finals
repairing, changing all electrolytic capacitors and new adjusting of FR-100B receiver from Sommerkamp (Yaesu) from 1965,
adjusting and testing temporary QO 100 setup system before 1st operation in August 2019
prototype of QO100 TRX built in 2022 by OE9RIR, OE9HGV, OE9WLJ for the OE9-QO100-group
in OE9 exist a group of approx. 15 enthusiastic OM’s (which i’m also a member of) built several of the TRX to work comfortabel QO100
refurbishing and checking spare-part normalizer HP8501A for using with new (old) HP 8754A network analyzer
testing VLF receiving converter FC-500 from Refcom, 10 KHz to 500 KHz into 14,010 MHz to 14,500 MHz, cost some Euros from fleemarket, start now new receiving projekt „Grimeton“