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Old October 30th 08, 12:55 AM posted to rec.radio.amateur.boatanchors
Henry Kolesnik Henry Kolesnik is offline
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First recorded activity by RadioBanter: Dec 2006
Posts: 224
Default Hammarlund SP-210 ?

Getting old is not recalling the alternatives offered, so I'm a dummy. I
found the filament xfmr first and tried it but it reduced volume so I
assume my radio which is non-military doesn't have 600 ohms like the
military manual I have. So I guess mine is commercial, either a
SP-200-SX or more likely a SP-210-SX and I think it has a 3.2 ohm
output transformer.
I can't find any info and I wonder if anyone knows for sure on the
commercial models output transformer's impedance.

--
Thanks & 73
Hank WD5JFR









"Scott Dorsey" wrote in message
...
Henry Kolesnik wrote:
What's an easy way these days with limited audio xfrmrs around to get
the 600 ohm spkr output to 4 or 8 ohms?


70V PA distribution transformers.

A 70V distribution transformer with an eight-watt input tap will give
you
600 ohms input.

Old 70V equipment is usually available free for the asking from your
local
installed sound company.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."