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Signal Injection Question
#36

(01-03-2018, 09:10 PM)morzh Wrote:  Well....I took over.

The sch seems to be the same as 46-250. Same tubes and seens to be same everything else.

So. Tonight I triedto inject the IF through.
I shorted the points where the loop antenna is connected.
The IF is tuned to.....625kHz. not 455kHz. Hence the problems. Oh....and the gain is low.
So I'll have to figure out why it is.


Rich,
When you said the IF passed through, what frequency was it? You said 455kHz but it does not react to it.

Mike:

I just played with the trimmer on the IF can but I had the signal generator tuned around 455 Khz.
I could also hear talking in the background but very, very weak. I could be way off.

Rich


Messages In This Thread
Signal Injection Question - by Welder - 12-24-2017, 05:02 AM
RE: Signal Injection Question - by Phlogiston - 12-24-2017, 10:13 AM
RE: Signal Injection Question - by Welder - 12-24-2017, 10:51 AM
RE: Signal Injection Question - by Phlogiston - 12-24-2017, 11:00 AM
RE: Signal Injection Question - by morzh - 12-24-2017, 11:07 AM
RE: Signal Injection Question - by Radioroslyn - 12-24-2017, 11:41 AM
RE: Signal Injection Question - by Welder - 12-24-2017, 02:17 PM
RE: Signal Injection Question - by morzh - 12-24-2017, 03:41 PM
RE: Signal Injection Question - by Welder - 12-24-2017, 05:20 PM
RE: Signal Injection Question - by David - 12-24-2017, 09:01 PM
RE: Signal Injection Question - by David - 12-24-2017, 09:12 PM
RE: Signal Injection Question - by morzh - 12-24-2017, 10:45 PM
RE: Signal Injection Question - by Welder - 12-25-2017, 04:49 AM
RE: Signal Injection Question - by Welder - 12-25-2017, 04:54 AM
RE: Signal Injection Question - by morzh - 12-25-2017, 06:41 PM
RE: Signal Injection Question - by Welder - 12-25-2017, 09:25 PM
RE: Signal Injection Question - by morzh - 12-25-2017, 09:37 PM
RE: Signal Injection Question - by Welder - 12-26-2017, 06:12 AM
RE: Signal Injection Question - by Welder - 12-26-2017, 06:12 AM
RE: Signal Injection Question - by morzh - 12-26-2017, 10:59 AM
RE: Signal Injection Question - by Welder - 12-26-2017, 08:50 PM
RE: Signal Injection Question - by morzh - 12-26-2017, 09:33 PM
RE: Signal Injection Question - by Radioroslyn - 12-27-2017, 12:08 AM
RE: Signal Injection Question - by Welder - 12-27-2017, 06:10 AM
RE: Signal Injection Question - by morzh - 12-27-2017, 09:23 AM
RE: Signal Injection Question - by Welder - 12-27-2017, 12:37 PM
RE: Signal Injection Question - by oldswab37 - 12-27-2017, 03:37 PM
RE: Signal Injection Question - by Welder - 12-27-2017, 05:04 PM
RE: Signal Injection Question - by morzh - 12-27-2017, 05:09 PM
RE: Signal Injection Question - by Welder - 12-27-2017, 06:47 PM
RE: Signal Injection Question - by morzh - 12-28-2017, 12:02 AM
RE: Signal Injection Question - by Welder - 12-28-2017, 04:19 AM
RE: Signal Injection Question - by morzh - 12-28-2017, 11:56 AM
RE: Signal Injection Question - by morzh - 01-03-2018, 09:10 PM
RE: Signal Injection Question - by Welder - 01-04-2018, 04:51 AM
RE: Signal Injection Question - by morzh - 01-04-2018, 01:50 PM
RE: Signal Injection Question - by Welder - 01-04-2018, 05:41 PM
RE: Signal Injection Question - by morzh - 01-04-2018, 05:52 PM
RE: Signal Injection Question - by Welder - 01-08-2018, 04:41 PM
RE: Signal Injection Question - by morzh - 01-08-2018, 04:48 PM
RE: Signal Injection Question - by Welder - 01-08-2018, 06:05 PM
RE: Signal Injection Question - by jcassity - 01-17-2018, 09:07 AM
RE: Signal Injection Question - by morzh - 01-17-2018, 09:53 AM
RE: Signal Injection Question - by jcassity - 01-17-2018, 10:13 AM
RE: Signal Injection Question - by morzh - 01-17-2018, 01:50 PM



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