[Boatanchors] Help with WRL Globe Scout 680 - short test

[TominNTX]

Folks,

I thought for a minute that Paul had solved a long-considered problem: 
How to tell if an automobile coil is bad. I guess not, can't thread the 
wire through the laminations.

I bought an Eico 1050 Resistance-Capacitance Comparator Bridge to try to 
compare coil inductances, but couldn't tell if it worked. I bought an 
Eico 944 Fly-back and Yoke Tester, but it showed good on the secondary 
of a good coil and bad on the primary.

My next try would be a Heath Q-meter, but haven't managed to buy one.

Interesting concept, anyway. I'll keep it in mind.

73 TominNTX KC5INU

Remember, the government cannot give anything to anyone that they have 
not first taken away from someone else.

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On 2/12/2011 8:40 PM, Paul Kraemer wrote:
> Curt
> Measure the inductance and then measure it with one shorted turn wrapped
> around it
> If it changes drastically it probably was not shorted
> If it remains the same it probably was shorted
> If it is a core and coil choke the shorted turn must be threaded though the
> laminations same as the existing winding
> Won't tell you if it is the right value but will tell you if it is shorted
> or not.
> Paul K0UYA

> ----- Original Message -----
> From:<rhulett1 at comcast.net>
> To:<boatanchors at mailman.qth.net>
> Sent: Saturday, February 12, 2011 4:52 PM
> Subject: [Boatanchors] Help with WRL Globe Scout 680
>> I installed a new switch and wired it correctly,but am getting no
>> modulation using a D104 microphone which functions fine driving a T-4XB.
>> The troubleshooting mentions "shorted choke CH2 due to defective switch
>> SW2". How can I determine whether the choke is shorted, and obtain a
>> replacement if it is? The inductance isn't mentioned anywhere that I can
>> find.
>>
>> 73, Curt KB5JO