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Messages - Radio Tech

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1
Seen that a few times.

2
Other Electronics and repair / Re: facing issue in Gaming
« on: September 11, 2018, 06:16:14 AM »
Robot?

3
Equipment Review / Re: Hallicrafters S120
« on: September 06, 2018, 08:32:40 PM »
In the first picture I do not see a selenium diode at all.  I need to look at the schematic tomorrow.
The back object with silver ends looks like a precision resistor or capacitor. An ohm meter may tell.

In the second picture that flat pack with the 6 legs is a resistor pack. There are multiple resistors inside. think of it as a crude attempt at a IC.

4
Manuals / Re: Hallicrafters S120 short wave reciever
« on: September 05, 2018, 09:33:10 PM »
Cool deal. Always liked the looks of these rigs. Thanks for sharing

5
Test Equipment / Re: Rigol DSA 815 Spectrum Analyzer
« on: September 03, 2018, 01:44:06 PM »
Hi Mark. I use a bird meter with a 40dm of attenuation.  Comes off te sample port. Never a problem.
I also at times use a small antenna with a right angle bnc. The SA receives the signal just fine and you can see any anomalies present, just cannot make accurate measurements this way.  There are a few videos on YouTube. I will see if I can find them.

Welcome to the forum.

6
New member welcome / Re: Hi from Luxembourg!
« on: August 24, 2018, 05:43:11 AM »
Hi Buckrodgers.

Welcome to the forum.
It is a bit slow here at times. Lots of folks but nothing going on.

7
This is a video by Alan w2aew on the Tektronix 465B trigger controls


8
Test Equipment / Re: Marconi
« on: June 30, 2018, 08:32:35 AM »
I cannot recommend anyone that works on these at a fair price.
But what selftest is it failing?
Sometimes pulling boards and cleaning the connectors will fix the problem.

9
New member welcome / Re: Hi From North Carolina
« on: June 19, 2018, 05:06:15 AM »
Hi and welcome to the forum.
I am in North Carolina. I see you are in North Wilkesboro, not that far away.

10
Test Equipment / Re: RCA Senior Voltohmyst
« on: June 17, 2018, 08:24:50 AM »
Hi Mark and Welcome.
If you want an original they show up on ebay at times.  The good thing is it is a simple design probe.  1 meg ohm resistor and a switch. I have built many of these using large sharpie pens.  Remove the end and pull the ink tube out.  I have also used pvc tubing as well.  Sometimes we have to get very creative.

11
Electronic Video Blog / #152 IC 745 Ram Board Part 2
« on: June 16, 2018, 04:05:10 PM »



12
Electronic Video Blog / #151 Give A Way Time
« on: June 16, 2018, 04:04:20 PM »




14
Electronic Video Blog / #149 IC 745 Ram Board Experiments PT 1
« on: June 16, 2018, 04:02:29 PM »





15
Electronic Video Blog / #148 More Icom IC 745 Repairs
« on: June 16, 2018, 04:01:09 PM »




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