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Messages - The Radio Shop

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721
CB Radio Repair Forum / Re: R27 receiver
« on: June 28, 2013, 02:11:15 PM »
I wanted to see if you noticed that about the frequency. :)
I am going to check more on itlater today. At the moment I have to run to town and had folks in here all day.
I think nomad hit it spot on also.
back in a bit

722
CB Radio Repair Forum / Re: R27 receiver
« on: June 28, 2013, 08:11:54 AM »
lets see if this works.
Again this is 1st osc output.

723
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 10:53:32 PM »
Okay bro, I fell asleep here in the chair. take care.

724
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 10:06:47 PM »
Quote from: Lazarus on June 27, 2013, 10:04:16 PM
which DSO is it? i know you posted about it over at CBT but i don't remember,

with mine i had to format a USB stick to work with it, it had the wrong type of file system on it, i think it had to be formated with FAT32 to work with mine, tho i can't remember for sure, or maybe it was FAT 16, yup i believe that was it now that i think about it,

Mine is the OWON PDS 6062. Just spent 20 minutes reading in the manual and nothing noted there about the usb port on the back. Bummer

725
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 09:48:08 PM »
Sorry, yes that was the output of the 1st mixer. but cant remember which side of the cap I took it from lol. Think it was between the output and the cap going to the 2nd mixer.
I am a bit tired lol.

I dont think mine will alow me to save to my flash drive. When I stick the drive in the usb it does not come on.

726
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 09:35:27 PM »
I never could get a good waveform on the 2235. The DSO did pretty good though. The frequency on the DSO was reading 29 to 30. Tomorrow I get some screenshot pics from the PC osciloscope funtion You will be able to read every thing and I will take a shot every few seconds so you see the changes.  I like the built in FC in the DSO.

727
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 09:16:22 PM »
I will take the lap top out there tomorrow and connect it to the DSO and capture the wave forms.  Really need a 10 fot UBS cable to connect it to the main pc. That feature in the DSO is sweet. I should use it more in radio repair but I dont.

728
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 08:31:45 PM »
Okay, I will scope those and see. Got my intersted now lol.

729
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 08:21:24 PM »
BTW, I really need a digital cam and a video cam lol.

730
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 08:20:16 PM »
Now that makes sence to me.
The VFO signal is coupled via a 1pf cap while the 31 meg signal is couple via a 5pf cap.
I think I should try and repalce those caps. They could be causing the issue I am having. I will throw the scope on it tonight or in the morning. These caps are very old style (looks like a resistor) and since they are value my cap meter reads 56pf on them.

731
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 07:52:35 PM »
Now that is what I am talking about!
That helps alot on explaining how this thing downmixes the signal. Good post bro.
So there are mixed signals from the 31 meg osc and VFO osc. Since these signals are mixed passively at the junction of C14 and C22 only the 31.4 MHz signal can be detected there.  Although there are actually 4 signals?

732
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 07:11:36 PM »
no problem bro. take your time :)

733
CB Radio Repair Forum / Re: R27 receiver
« on: June 27, 2013, 06:08:30 PM »
Sweet more stuff  8)

734
CB Radio Repair Forum / Re: Amplifier repair
« on: December 27, 2012, 09:19:54 AM »
4 tube elkin Screen check point

735
CB Radio Repair manuals and documentation / Re: CB Tune up mauals
« on: October 17, 2012, 06:11:13 PM »
rest

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