[Boatanchors] Johnson Viking I questions

[Carl]

----- Original Message ----- 
From: "Mahlon Haunschild" <mahlonhaunschild at cox.net>
To: <boatanchors at mailman.qth.net>
Sent: Sunday, September 05, 2010 11:55 AM
Subject: Re: [Boatanchors] Johnson Viking I questions


> While Mod "B" definitely is the low frequency audio mod, the 829B swap
> may or not
> be Mod "A" because it's documented in both the operator's manual and the
> construction manual.

It wasnt even thought of until the Korean War and the V-I  had already been 
on the market for 5 years.


>
> Mod "A" may be the TVI suppression kit installation, but that seems
> unlikely since that's a part-numbered product.


Correct plus it didnt come out until after a June 1952 QST article.



> Hmmm... but then, what do I know?  I just bought a V I myself and will
> be dealing with the same questions soon.
>
> Note that the 829B isn't a drop-in replacement, so check the socket
> wiring to make sure it's correct for whatever tube you're using.
>
> Hey, the 813 uses the same socket!   HMMMMMMMM.......
>
> By the way, does anyone know why it's "Viking I" as opposed to just
> "Viking"?  Did Johnson anticipate the Viking II in some way?


I dont even think they knew. The V-II wasnt even a planned product, it came 
about due to the 4D32 unavailability plus it included all the TVI minimizing 
items which suddenly became very important to all hams. The chassis is pure 
V-1 with minimal changes. In fact the 6146 sub assembly was sold as a V-1 
update; the 6146 was introduced in late 51 if I remember.

It is rather interesting that Collins had the clout to continue obtaining 
the 4D32 during its full 32V series production life.

I had a V-1 and HQ-129X in the late 50's and have replicated that station 
here including a modern interpetation of the dual 250TH amp I built in 57.

Carl
KM1H


>
> regards,
>
> Mahlon - K4OQ
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Sun, 5 Sep 2010 09:56:21 -0400
>> From: "Carl" <km1h at jeremy.mv.com>
>> Subject: Re: [Boatanchors] Johnson Viking I questions
>> To: "Jack Antonio" <scr287 at sbcglobal.net>,
>> <boatanchors at mailman.qth.net>
>> Message-ID: <008901cb4d02$2133b020$6501a8c0 at DAVES>
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=original
>>
>> Id replace any paper and electrolytic cap, the originals will go south
>> pretty fast after applied voltages accelerate the chemical action.
>>
>> The PTT can be found in that Mod section you mentioned, or in the Viking 
>> II
>> in the CDC model.
>>
>> Im guessing that Mod A is the 829B swap for the then unobtanium 4D32 
>> during
>> the Korean War.
>>
>> I use a I and II CDC regularly.
>>
>> Carl
>> KM1H
>>
>
> ______________________________________________________________
> Boatanchors mailing list
> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Boatanchors at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html