[Milsurplus] No.19 MkIII

[J. Forster]

The reduced line voltage may help some, as there is a ferroresonant
regulator in the unit. Lower line may reduce its internal dissipation.

My advice is still do not overfuse the AC, in case a 6X5 gets leaky H-K.

FWIW,
-John




> I've been using my Wireless Set 19 MkIII with the original AC supply
> for something around 10 years now. The only precaution I take is that
> I run it on a Variac, feeding it 110 VAC exactly. I have the set on
> sometimes for 4 hours at a stretch (on receive, transmit periods on CW
> are much shorter of course within this timeframe). The power supply is
> slightly warm to the touch, but not hot.
> I may be very lucky and it could be a matter of time, but maybe just
> keeping it fed with lower than the "modern" line voltage helps its
> longevity.
> I use this set on the Wireless Set 19 Net on 80 M -  conditions
> permitting and also to work some DX. Sometimes I run one of the MkII's
> on 12 VDC with the dynamotor supply.
> Indeed, the WS19 has a distinct sound, but so do the GRC-9, BC-223,
> ATD and other military sets I have on the air regularly. Easy to
> identify the outstations in the net...
>
> 73 de Meir WF2U
> Landrum, SC
>
> Quoting Ralph Cameron <ramcam at magma.ca>:
>
>> I had a Canadian built AC supply for the 19 set and it burned out after
>> about 3 months of operation. The HV transformer was very underrated and
>> overheated and that black tar caused quite a stink when it melted. For a
>> high school boy, I paid $49.50 for the AC supply and the same amount for
>> the
>> rig , brand new in the 7 ft crate.
>>
>> One thing about the 19 set, it must have had one of the most distinctive
>> notes on the band.
>>
>> Ralph
>> VE3BBM
>>
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