[Milsurplus] DY-17A/ART-13?

[W2HX]

Thanks, Ray. Thanks to KC4TOS I got the info I needed. Just apply some 28V to the right place and the motor should run. I will be careful not to touch anything!
The ART-13 I got came with a homebrew AC supply, which at first glance, looked usable. However, as I dove into the construction, I became more and more concerned about the quality of the work. Some day I might choose to rewire it, or start from scratch or look to buy one if someone had one (properly) made, but for now the simplest solution is the dynamotor. Very simple indeed.

And yes, the allure of the motorized tuning and a motorized power supply is too much to ignore!

73 Eugene W2HX
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From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> On Behalf Of Ray Fantini
Sent: Monday, May 9, 2022 3:13 PM
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] DY-17A/ART-13?

Between all the interlocks and mode controls if you just want to spin up the Dynamotor think I would just use clip leads on the contactor coil , think its K-2703 or something like that. Not across the contacts but from +28 to one side of the coil and to ground on the other side. Think there was two or three relays that were involved in current limiting on one side and another contact between the relay coil and ground that was for PTT
Remember that when you do that you will have a bunch of HV that may want to go somewhere! Along with capacitors that will be charged too.
I have owned and did a couple AR-13 transmitters before but never used the dynamotor being that a AC power supply is way more behaved then the dynamotor, but it appears a lot of people feel that in order to get the maximum enjoyment one must experience the sensation of motor generated high voltage.

Ray F/KA3EKH

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