[MRCA] ATC ART-13

[highpwr at bellsouth.net]

Further report, Autotune sub-system in both units seem to work A-OK,

 

Steve

KM4V

 

From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf
Of highpwr at bellsouth.net
Sent: Monday, May 22, 2023 10:33 AM
To: MRCA at mailman.qth.net
Subject: Re: [MRCA] ATC ART-13

 

After some haggling I bought both these unmodified ART-13s  (with their
little brown books) late Saturday at Xenia / Dayton.

 

Now to build a supply.

 

I'll be picking all your brains with questions,

 

Thanks & 73,

 

Steve

KM4V

 

 



 

From: mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net>
<mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net> > On
Behalf Of Jeep Platt
Sent: Wednesday, May 17, 2023 10:52 AM
To: MRCA at mailman.qth.net <mailto:MRCA at mailman.qth.net> 
Subject: [MRCA] ATC ART-13

 

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

 

Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android <https://aka.ms/AAb9ysg> 

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