[Boatanchors] Surplus Conversion Manual" Volume II

[J. Forster]

If you have a 60 or 400 Hz unit, you can easily make it also run on 800 Hz
(or even 2400 or 4800 Hz) by just using thinner laminations in the
transformers. No other changes are needed, EXCEPT if there are AC motors
or fans.

-John

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


> Same reason as for aircraft, to save weight.  The TBW was "portable".
> However, 800 cps apparently proved to be more trouble than the slight
> additional
> weight reduction offset.  I can't think of anything much after the TBW and
> GO-9 that required it.  Although there was a lot of equipment built that
> was
> rated to also run on it.
>
> In a message dated 11/27/2009 6:17:23 PM Central Standard Time,
> jfor at quik.com writes:
>> It was certainly used in aircraft, but I'm puzzled why it'd be used on
>> the
>> ground, unless the sets were for both air and ground.
>>
>> -John
>>
>> ================
>>
>>
>>
>> >800 HZ? I know of 400 Hz. for aircraft radios, but never heard of 800.
>> >
>> >wf2u at ws19ops.com wrote:
>> >>I know
>> >>the hurdle is the 115 VAC @ 800 Hz power requirement - provided you
>> >>have the original power supply with it. There are a few solutions.
>> >>Either you find (eBay is a source) of a powerline frequency converter,
>> >>or a suitable generator (usually surplus) you can spin with a 115 VAC
>> >>@ 60 Hz standard electric motor. In the absence of 800 Hz prime power,
>> >>an external power supply can be cobbled together to duplicate the
>> >>power outputs of the original power supply, and feed it into the unit
>>
>
> Robert & Susan Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480