[NJARC] field coil speaker replacement

[Bill Zukowski]

The field coil is 2125 ohms, and I used a 2900 ohm resistor.  Don't know 
the specs on the output transformer, but it matches a single ended 6F6 
to probably a 3.2 ohm speaker.  Another transformer/speaker combo sounds 
fine using the original field, but not so good using a resistor.

Sorry for the confusion.

On 4/19/2017 7:43 AM, Rich L. wrote:
> Bill, is the speaker impedance 2100 ohms or is that the transformer impedance measured at the plug going into the radio?  I was successful in using the same matching transformer that is mounted on the old speaker and just changing the speaker with a 8 ohm speaker. Using a resistor will result in a power loss due to the mismatch in the impedance of the output tube and a 8 ohm speaker.
>
> Rich
>
> -----Original Message-----
> From: NJARC [mailto:njarc-bounces at mailman.qth.net] On Behalf Of Bill Zukowski
> Sent: Wednesday, April 19, 2017 2:18 AM
> To: NJARC at mailman.qth.net
> Subject: [NJARC] field coil speaker replacement
>
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