[Johnson] Johnson invader 200
David C. Hallam
dhallam at knology.net
Wed Jun 4 08:25:17 EDT 2014
You can use your general coverage receiver to hear if the carrier and
mixer oscillators are working. You really need to have a manual with
schematic and a VTVM with an RF probe if you are going to do any trouble
shooting. With a general coverage receiver and a VTVM, you can do most
of the work.
David
KW4DH
On 6/3/2014 8:36 PM, Monte wrote:
> Hi David
> Well as far as test gear I really don't have a lot , do have a general coverage radio, I do think when I first fired it up I had output for a split second, the relay is working but like I said even in transmit mode I pick nothing up on a receiver right next to the transmitter.
> I also have a Ht-32b that I need to get from my friends in St. Paul Mn not sure when that will happen I have my right hip replaced July 7
> I have the original manual with schematics for the invader.
> Let me do some more checking and get back with you, I envy your invader 2000 , for some reason those invader caught my eye as a teenager , took me a while to actually find one.
> There's a pretty nice you tube video of a invader 200 too
> I will do some investigating and get back with you, it just seem it worked , then it didn't
> Monte
>
> Sent from my iPhone
>
>> On Jun 3, 2014, at 8:22 PM, "David C. Hallam" <dhallam at knology.net> wrote:
>>
>> Monte,
>>
>> To start, what test equipment do you have? A scope and a general coverage receiver would certainly help. Are the carrier oscillators and the mixer oscillators working? How about the vfo. Is it working? Have you gone through the voltage and resistance measurements in the manual?
>>
>> Do you have a manual and schematic for the rig? No there's no magic fused link. The Invader has a couple of finicky areas but it's a fairly straight forward rig.
>>
>> I know what you mean about a hip replacement. I have had both hips and one knee replaced.
>>
>> At least the Invader is not quite as heavy as the HT-32A. I have had several of them and currently have a HT-32B. right now I have a SX-100 MKII on the bench in final stages of electrical refurbishing. The case is in good enough shape that I think I will just leave that as is. Then I have 2 Invader 200's and a 2000 to refurbish. All 3 will need a complete refurbishing including stripping and repainting the cases. I am trying to find a powder coating shop that will do the light gray, small wrinkle finish of the Invader.
>>
>> David
>> KW4DH
>>
>>> On 6/3/2014 6:36 PM, Monte wrote:
>>> Hi and thanks for the reply
>>> Well I used to drool over these rigs as a teenager and I have several Hallicrafters sx-101a HT-32a
>>> I ran across this invader in pretty fair condition and couldn't resist
>>> Anyway I've had it several month ,had total hip replacement which slowed me down a few months,
>>> Anyway I finally unpacked it and fired it up, powers on fine but no output,
>>> Checked the obvious things tubes loose connections etc I don't even get a signal when I try to zero beat to
>>> The receiver
>>> My health still slows me down as far as working on these big old rigs but I tend to use them more than my more modern stuff
>>> I know I haven supplied you with much info I'm wondering if there's a fused link or something that's not as obvious as the main fuse
>>> Thanks again for any help
>>> Monte
>>>
>>> Sent from my iPhone
>> --
>> "I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them."
>> Thomas Jefferson
>>
>>
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