🚀 go-pugleaf

In article <xdwn!8m@dixie.com>, jgd@dixie.com (John De Armond) writes...
>In article <larryd.716229475@milton> larryd@milton.u.washington.edu (Larry
>Desoto) writes:
> 
>>Dynamoters...you forgot the true dinosaurs of High Voltage.  The proper
>>technique when using dynamotor powered ARC-5 transmitters was to press
>>the mike key and wait a second or so until the motor was up to speed.
>>It really brings back memories of adding another battery to the car's
>>electrical system to bring the voltage up to 24 volts for the dynamoters.
> 
>I have the Mother of all dynamotors.  About 1200 volts at an amp or so.
>No idea what it came off of.


	Ahemmmmmmmm.  Chicago, Milwaukee, St Paul & Pacific RR.  Electric
	Zone, Harlowton, Mt to Avery, ID.  At 30 mile intervals, rotary
	convertor substations, 2400 VAC 3 phase in, 3,000Vdc out.  (I
	disremember the ratings, but think of kiloamps....).  All torn out now.
	Or any transit system, til recently 600 VDC at thousands of amps, from
	the same sort of rigs.  Stood 15 feet high.

	In these sizes, efficiencies could approach 90%.

thanks
dave pierson			|the facts, as accurately as i can manage,
Digital Equipment Corporation	|the opinions, my own.
146 Main St			|I am the NRA.
Maynard, Mass	
01754				pierson@majsty.enet.dec.com
"He has read everything, and, to his credit, written nothing."  A J Raffles