Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives
Support This Site: Contributors :: Advertise


It is currently Dec Thu 12, 2019 5:40 pm


All times are UTC [ DST ]





Post New Topic Post Reply  [ 6 posts ] 
Author Message
 Post subject: Interesting Hallicrafters device
PostPosted: Mar Mon 11, 2019 1:10 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1488
Location: Jackson, TN
Hi All,


Good to see ARF up and running again.

Stumbled across this device on eBay. Looks like a motor driven trimmer cap in an octal based enclosure.

Any idea what this was used for?

Thanks, Tim

https://www.ebay.com/itm/Hallicrafters-Model-C-Sweep-Unit-Tube-Unusual-Part-No-1C2196/312424590535?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649


Attachments:
HalliSweep.jpg
HalliSweep.jpg [ 227.18 KiB | Viewed 540 times ]
Top
 Profile  
 
 Post subject: Re: Interesting Hallicrafters device
PostPosted: Mar Mon 11, 2019 2:33 pm 
Member

Joined: Mar Wed 16, 2011 10:44 pm
Posts: 1061
Location: Peekskill, NY
Hermetic enclosure, mfr in Dayton, OH, 400 cycle power.

These all add up to some sort of aviation related item, I suspect.


Top
 Profile  
 
 Post subject: Re: Interesting Hallicrafters device
PostPosted: Mar Mon 11, 2019 4:14 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 9348
Location: Beaver Falls, PA. USA
Part of an autotune unit for a transmitter?

_________________
Tim KA3JRT


Top
 Profile  
 
 Post subject: Re: Interesting Hallicrafters device
PostPosted: Mar Mon 11, 2019 8:19 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 359
Location: Limington, Me
With a 3000 volt capacitor I'd guess it was used to sweep the frequency of a jamming
transmitter. 400hz indicates it was part of an airborne set.


Top
 Profile  
 
 Post subject: Re: Interesting Hallicrafters device
PostPosted: Mar Tue 12, 2019 1:22 am 
Member

Joined: Jan Mon 17, 2011 8:57 pm
Posts: 806
Maybe used for jamming in one of these:


AN/ALT-13: ECM barrage transmitter for B-52, Hallicrafters
AN/ALT-15: ECM barrage transmitter for B-52, Hallicrafters
AN/ALT-28: ECM barrage transmitter for B-52, updated version of the earlier ALT-13, Hallicrafters
AN/ALT-30A: ECM barrage transmitter for B-52, updated version of the earlier ALT-15, Hallicrafters
AN/ALT-31: ECM barrage transmitter for B-52, Hallicrafters
AN/ALT-32: ECM barrage transmitter for B-52, Hallicrafters

_________________
- Vince


Top
 Profile  
 
 Post subject: Re: Interesting Hallicrafters device
PostPosted: Mar Tue 12, 2019 1:46 am 
Member

Joined: Oct Thu 20, 2016 3:54 am
Posts: 285
Location: Missoula mt
I think it was for radar...WA7OPY


Top
 Profile  
 
Post New Topic Post Reply  [ 6 posts ]  Moderator: Lou deGonzague

All times are UTC [ DST ]


Who is online

Users browsing this forum: radiojwk, Yarehobbiesso$ and 4 guests



Search for:
Jump to:  




























Privacy Policy :: Powered by phpBB