[MRCA] ATC ART-13

[Jeep Platt]

The DY-17 dynamotor requires more than 60A inrush current.  That supply will not do the job unless you use a multi-farad inrush booster. Just to check the autotune system and fil circuits, 10A will do it.
K3HVG

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________________________________
From: Herb Mooney <herbert.mooney at gmail.com>
Sent: Tuesday, May 30, 2023 9:24:38 AM
To: Jeep Platt <jeepcomms at outlook.com>
Cc: mrca at mailman.qth.net <MRCA at mailman.qth.net>
Subject: Re: [MRCA] ATC ART-13

Would this A/C power supply work well enough for testing initial setup prior to using my batteries with the dynamotor?
https://www.amazon.com/gp/product/B00PWSDH8C/ref=ox_sc_act_title_2?smid=AMH4W1K8OCGMX&psc=1

Herb - W4BCH

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On Wed, May 17, 2023 at 10:52 AM Jeep Platt <jeepcomms at outlook.com<mailto:jeepcomms at outlook.com>> wrote:
I just sold an on the air ART-13 and ARR-15 receivers for $1k. The ART-13 was complete and virtually new condition.  The ATC (Navy designation) and the ART-13, both T-47s, are virtually the same. I would shoot for the easiest one to get on the air.  I might also recommend an a.c. power supply, to begin with. That will allow sequential application of voltages; filaments first, the 400v, then the 1100v HV.
Things to sequentially check:
All tubes light up.
Autotune works and properly "homes". ( no home, no TX key).
Apply 400v and check grid drive.
Finally, apply HV and check for power out.
If you need initial dial settings for test on 75 meters (can provide).
You will need between 700 and 1100pf of loading to tune 75 meters at 50 ohms.
Been there, done that, at least 8 times....  It can be done.
Jeep K3HVG

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