[Hallicrafters] Jim Needs Advice On S40a

[Roy Morgan]

At 02:23 PM 1/30/02 -0500, Duane Fischer, W8DBF wrote:

>
>Please post your reply to the list, as he is not currently among us 
>here.
>
>All the literature I have seen on the S40A states that it uses a 5Y3 as the
>rectifier. ...   But, the chassis is stamped "80". Was there an early 
>version that used 80 s for the rectifier?

Most likely.
The 5Y3 is electrically identical to the earlier 80.
I have an 80 that is a 5Y3 size envelope on a four-pin base.

If you have no type 80's and are unhappy at the prices they command 
nowadays, find a 4-pin tube base and wire on an octal socket.  Voila!  An 
adapter.  Good for testing radios that use type 80 before you are confident 
it is not going to blow one out.

Roy



>Or, did they reuse some old S40 chassis at the beginning
>and use 5Y3 for the rectifier?
>
>If I'm going to replace the socket, I'd may as well put the correct one in.
>
>Thanks for any help that you may offer.
>
>Jim Roik
>
>VE4AQ
>
>_______________________________________________
>List Administrator: Duane Fischer, W8DBF **for assistance**
>dfischer at usol.com
>----
>Hallicrafters Collectors International: http://www.w9wze.org
>----
>http://mailman.qth.net/mailman/listinfo/hallicrafters

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
7130 Panorama Drive, Derwood MD 20855
Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax: 301-948-6213
roy.morgan at nist.gov --