21
Figure 3.16: QSK PCB to Tuned Input Connections
The remaining coaxial cable provides the RF output signal path from the amplifier’s load
network to the QSK T/R Relay PCB.
•
Solder the longer coaxial cable’s shield to the ground post on the side of the amplifier,
near the output band switch.
•
Solder the coaxial center conductor to the RF output. (Near the bottom of the load
capacitor as shown in Figure 3.17).
•
Solder one end of the RF Choke to the ground post on the side of the amplifier, near
the output band switch. This is the same post that the coaxial cable shield is soldered
to.
•
Solder the free end of the RF choke to the “common” contact of the output bandswitch
as shown in Figure 3.18. The common connection will already have a bus wire running
from the RF tank coil and will also have a 47pF capacitor shunt to ground.
NOTE:
Some users have reported that the 47pf capacitor shown in Figures 3.18
and 3.19 had been omitted in their particular amplifier.
When finished the amplifier should appear as shown in Figure 3.19.
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Summary of Contents for TL-922 Revival (tm)
Page 13: ...6 Figure 3 1 TL 922 Revival tm Upgrade Kit Contents www KesslerEngineeringLLC com...
Page 18: ...11 Figure 3 4 LED Circuit Board Correctly Installed www KesslerEngineeringLLC com...
Page 30: ...23 Figure 3 19 QSK PCB to QRO Output Connections www KesslerEngineeringLLC com...
Page 34: ...27 Figure 3 23 Electronic Bias PCB Installed www KesslerEngineeringLLC com...
Page 47: ...40 Figure 3 30 Step Start PCB www KesslerEngineeringLLC com...
Page 49: ...42 Figure 3 33 LED Schematic Diagram Figure 3 34 LED PCB www KesslerEngineeringLLC com...
Page 50: ...43 Figure 3 35 Electronic Bias Schematic Diagram www KesslerEngineeringLLC com...
Page 51: ...44 Figure 3 36 Electronic Bias PCB www KesslerEngineeringLLC com...
Page 54: ...47 User Notes www KesslerEngineeringLLC com...
Page 55: ...48 5 1 User Notes Continued www KesslerEngineeringLLC com...
Page 56: ...49 5 2 User Notes Continued www KesslerEngineeringLLC com...
Page 57: ...50 5 3 User Notes Continued www KesslerEngineeringLLC com...
