[MRCA] SCR-284 PE-103

[mkdorney at aol.com]

    There is nothing wrong with the bearings on the PE-103s I've run ( two of them), and they were freshly lubed.  The PE-103 just makes too much noise, period.  Like I said, OK if you're "in the rear with the gear" - not good if you're withing hearing range of an enemy.  A vehicle, when running, makes more noise, and if inside a parked vehicle, the vehicle itself may act as a noise baffle, but if I'm in the infantry, and I'm living in a hole in the ground, and  my life is on the line, if I can get a radio that's quiet ( read most battery powered transceivers , like a TBY or a BC-100o. or the more modern PCR-77), that's what I'm using.
 
Mark
WW2RDO
 
In a message dated 10/3/2017 12:54:29 PM Eastern Standard Time, duvallddennis at gmail.com writes:

 
I would agree, very quiet.  A set of bad bearings is another matter…..
 
Dennis DuVall, W7QHO
 
*****************
On Oct 3, 2017, at 4:15 AM, Garret Scott <scottgs at bellsouth.net> wrote:
Surprised to hear this. The two PE-103's I have are exceptionally quiet, more so than even some hand crank generators. You can barely hear them outside a tent. Compared to other dynamotors, they seem the quietest of all.  

Perhaps there's differences among them?

Garret
W8BUG


On October 3, 2017 12:41:53 AM EDT, WW2RDO via MRCA <mrca at mailman.qth.net> wrote:
Hello Mike,
     I have powered up a PE-103 with my BC-654.  There is no way I would want that thing in any forward position I was serving in - the noise would attract way too much attention at night ( I served with the 10th Mountain Division in the early 1990s).   Like I said, Hellen Keller could find you in the dark when that thing fired up.
 
Mark
WW2RDO
 
 
 
In a message dated 10/2/2017 2:55:47 PM Eastern Standard Time, 
kk5f at earthlink.net writes:
 
Mark wrote:

>> As far as the noise made by the PE-103, I would have to agree with
>> the Marines - way too noisy, especially at night. Hellen Keller
>> could find you in the dark when that thing fires up

Robert wrote:

> The PE-103 (or at least the two that I used to run regularly)
> is pretty quiet as medium size dynamotors go.

I spent many an hour and a mile in an old Ford when I was a kid in the 1950s and 1960s with my dad (W5WRR/SK) using a PE-103 for his Multi-Elmac AF-67.

The PE-103 was probably THE most desirable surplus dynamotor ever for hams operating mobile for twenty years after WWII and were pretty expensive in surplus. I don't recall any particularly notable objectionable noise levels from it, compared to any other similar-size dynamotor... like a DY-31/ARC-2.

I have not powered up the PE-103 for my SCR-284.

Mike / KK5F
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