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

It is currently Oct Wed 20, 2021 8:52 pm

All times are UTC [ DST ]

Post New Topic Post Reply  [ 2 posts ] 
Author Message
 Post subject: National HRO Audio Transformer
PostPosted: Oct Thu 14, 2021 6:35 am 

Joined: Sep Fri 14, 2018 11:18 pm
Posts: 64
Location: Livorno, Italy
Hi, could anyone kindly tell me what is the correct model number for the National HRO audio transformer shown in the attached image? I would like to find one (if possible) for a National HRO-MX that I have, waiting for restoration. Thanks.

HRO_P352__0002.jpg [ 362.65 KiB | Viewed 168 times ]
 Post subject: Re: National HRO Audio Transformer
PostPosted: Oct Mon 18, 2021 12:44 am 
User avatar

Joined: Feb Fri 25, 2011 12:57 am
Posts: 2787
Location: 08033 Cherry Hill Jersey
Daniele - I took a look at my two HRO's. One has a Kenyon T-104 transformer, apparently 7K primary and secondary windings for both 500-200 and 15-8-4 ohms.

You may find this article helpful
Read through to find where 'audio transformer' is mentioned.
Good luck!

Want 20's-30s transmitters

Post New Topic Post Reply  [ 2 posts ]  Moderator: Sandy

All times are UTC [ DST ]

Who is online

Users browsing this forum: AL7FS and 18 guests

Search for:
Jump to:  

Privacy Policy :: Powered by phpBB