Hi again.
ERROR in last post.
Ignore reference to Q503.
It should be
Q502 base volts 0.42v with approx 2v RF on the base = nil output.
Sorry about that.
Bob
Search found 3 matches
- Wednesday 31st Jan 2007, 2:37
- Forum: CB Radio Repair and Troubleshooting
- Topic: President George
- Replies: 4
- Views: 9962
- Wednesday 31st Jan 2007, 1:02
- Forum: CB Radio Repair and Troubleshooting
- Topic: President George
- Replies: 4
- Views: 9962
Hi Rick. Sorry to reply so late - but been away for a few days. So - here goes. As I said 4V RFout of the driver. Q501 base volt = .14v with approx 2v RF Q503 base volt = .76v with approx 1v RF Only about 150mV going into the aerial. Hope this gives a clue. I couldn`t find the R206 so the base volta...
- Thursday 25th Jan 2007, 22:04
- Forum: CB Radio Repair and Troubleshooting
- Topic: President George
- Replies: 4
- Views: 9962
President George
Hello Guys, I have a George with a faulty TX.I have plenty of RF (4v RF on 10Mhz scope) output from the driver but negligible input to the finals.I have changed the finals but with no difference.I believe the protection circuit has kicked in. My question - How can I defeat this protection circuit so...