By Walter Cates WD0GOF (UPDATE 10/30/2013)
28
(see drawing below). There is one thing to check before considering this approach. Some K1 relays do not have
that contact. The contacts are stacked. So if you have a junk box full of relays and can find a similar relay, you
can add the needed contact. You will need to add a 750 to 800 ohm resistor from the cathode of V13 to ground
to compensate for the coil resistance of K3.
Summary of Contents for SR-150
Page 18: ...By Walter Cates WD0GOF UPDATE 10 30 2013 18...
Page 19: ...By Walter Cates WD0GOF UPDATE 10 30 2013 19 BEFORE CLEANING CLEAN CHASSIS...
Page 20: ...By Walter Cates WD0GOF UPDATE 10 30 2013 20 3 1 2 TUBE SOCKET CLEANING KIT...
Page 21: ...By Walter Cates WD0GOF UPDATE 10 30 2013 21 3 1 3 AIR VARIABLE CLEANING...
Page 30: ...By Walter Cates WD0GOF UPDATE 10 30 2013 30 3 5 5 K3 WIRING AND PIN OUT...
Page 38: ...By Walter Cates WD0GOF UPDATE 10 30 2013 38 4 DATA SHEETS...
