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Old 3rd Oct 2019, 4:44 pm   #4
usradcoll1
Heptode
 
Join Date: Mar 2017
Location: Cedar Grove, Wisconsin, USA.
Posts: 823
Default Re: Hallicraft S27

Quote:
Originally Posted by ms660 View Post
Quote:
Originally Posted by Hybrid tellies View Post
I am taking a look at a Hallicraft S27 receiver. I noticed that the speaker outputs are marked either 500 ohms or 5000 ohms. I service information we have is not totally clear on this but does this mean that the speaker impedance is as high as 500 ohms or 5000 ohms for this receiver?
It's designed for those load impedances, a bog standard SET output transformer with it's primary connected to the 5k output should do then you can run a 4-8ohm or whatever loudspeaker from its secondary.

Lawrence.
The S-27 is a high-frequency receiver and there isn't too many around!
I have another Hallicrafters receiver that has the same set-up. I did exactly the same as you did!
Later, I acquired the proper speaker and it came equipped with the proper matching transformer.
I have several Hallicrafters receivers in my collection, but not an S-27. It's strictly a high frequency receiver and I didn't desire owning one.
Dave, USradcoll1.
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