Identifying Speakers

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Identifying Speakers

Postby Ax1 » Sat Aug 01, 2015 9:40 am

I have the following speakers that I want to identify. I am hoping someone knows something about them. I want to find out the current/power ratings of the field coils:

Image

1) Hammond Rola
AO-21055-1
6232
285114
Measured Field Coil: 0.978k

2) Jensen
F12NS-C6142
AO-21055-2-SH.3
220746
Measured Field Coil: 0.699k

3) Magnavox
Markings have worn off
There are 3 wires coming out but can't see where they attach, so no idea what they connect to.
I either get 1.902k or 5k depending on which wires I connect to

4) Telefunken
Field coil is: 1.989k
No other markings
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Re: Identifying Speakers

Postby DeathRex » Sat Aug 01, 2015 10:11 am

I checked my RCA 811K and a Zenith 10S130, both large radios, and the drop across the field was 20 volts. You obviously aren't going to put 100ma through a 1.9K field, you'll lose 190 volts.
At first I wanted to be a ET. Now I are one.
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