[MRCA] Recent acquisitions WS #19

[J. Forster]

> Yes, your observation(s) is correct, its a MK II, clearly indicated on
> the tag.  I'll be looking in to re-capping this week.. unless having the
> book is mandatory before starting!

I would NOT recap it. If brought up slowly, thereby reforming the
electrolytics, it doesn't need it. All you need to do is apply HV DC to
the HT1 pin and ground and bring it up in roughly 25 VDC steps, starting
from zero, at about 1 step per hour. Take the bottom plate off so you can
see. If any electrolytic gets warm, stop at once. No filament power, of
course. On a MK II, you can use the FP switches to select the "A" or "B"
and IC. I reform them one at a time. In a MK III, do each separately.

"B" set dogbone??????

There is only 1 dogbone to the PSU. On a MK II it has 6 pt connectors. The
MK III uses the 12 pt; the 6->12 and 12->6 are aardvaarks and are used in
mixed systems.

There are two spares kits for the WS19; brushes and key, and tubes.

You need at the very least the Working Instructions. They are easy to get.
Next, you should have Wireless for the Wrrior, Vol 2; If you really want
to get into the set, the EMERs are available, if you are willing to beg
and take a bunch of BS.

Best,

-John

============

> Question, though.. where would the
> "B" set dog-bone (Pye???)  be used?  The one I have consists of two rt.
> angle plugs.  So, I guess I'm OK.  I have to return to get a lot more
> stuff, to include the protective cage covers and I think one more spares
> kit we left behind.  I do not have the variometer and will have to keep
> looking for it at the guy's QTH.  I can't imagine it not being there...
> someplace.   And... gentlemen, I very much appreciate all the kind
> attention you've provided on this project.  I'm sure I'll get it going,
> one way or another.
>
> Breck..... In that load there was a brand new ARC-1 w/ shockmount.  It
> still has the cover and the tuning tool.  Maybe we can ARC-1 to ARC-1
> one of these days?
>
> Jeep - K3HVG
>
> On 3/17/2013 9:45 AM, J. Forster wrote:
>> There are several WS19s and power supplies. At a guess, you probably got
>> a
>> US made Zenith MK II lend-lease set. All the others are pretty rare in
>> the
>> USA.
>>
>> I am very familiar with the sets, so if yu have questiond drop me a note
>> off-list. Meir is also pretty savvy.
>>
>> You should reform the set's capacitors so it powers up gracefully. Thius
>> can be easily done with a variable PS ans some clip leads.
>>
>> The big filter cap in the PSU MUST be reformed or it may well go bang!
>>
>> There may be two different cable types. The one with the two right-angle
>> Pye connectors is for the "A" set. The one with 1 straight; one right
>> angle is for the "B", and yes, there is a difference.
>>
>> You MUST use the set with the variometer. It is part o the output
>> circuit
>> and w/o it you will splatter all over the band.
>>
>> BTW, there are several WS19 users on the ArmyRadios Yahoo Group. There
>> are
>> two WS19 Groups. If you want to know why, email me off-list.
>>
>> Best,
>>
>> -John
>>
>> =================
>>
>>
>>> I just got a Wireless Set 19 setup from a local ex-collector.  Its all
>>> there, to include the radio mount, control boxes,  and even the canvas
>>> cover, and an extra power supply.  I'm currently obtaining manuals for
>>> a
>>> lot of it but I'd like to know what difficulties I might encounter with
>>> this radio set in bringing it to life.  I understand there is a
>>> reflector for this equipment but I've not explored that avenue, yet.
>>> Just curious what you all may have encountered?
>>>
>>> Jeep K3HVG
>>>
>>> PS:  If anyone with one of these sets needs an antenna cable with that
>>> Brit connector on it, there's probably 5-10 of these with all the
>>> spares
>>> and such.
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