Philco 112 speaker to permanent magnet

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Philco 112 speaker to permanent magnet

dirkbuddy
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Posts: 39
Threads: 8
Joined: Feb 2014
City: Medicine Hat, Alberta canada

03-23-2018, 06:07 PM

Looking through my parts here I found a Jensen universal audio transformer, atttached is the directions looks like if I want to drive a 6 ohm pm voice coil I need to know the tube resistance. I have push pull 47's. Therefore if I look up the 47 tube in a tube manual am I looking for "load resistance"? if so it is 7000 ohms. So do I double that ( because i have 2 tubes) so that would put me at 14000 . if looking at this chart so on the secondary of the audio transformer would I use lugs 2 & 4 and go with what is close which would be 16000 under the 6 ohm column to connect my PM speaker to?

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Philco 112 speaker to permanent magnet - by dirkbuddy - 03-23-2018, 11:20 AM

RE: Philco 112 speaker to permanent magnet - by morzh - 03-23-2018, 03:28 PM

RE: Philco 112 speaker to permanent magnet - by dirkbuddy - 03-23-2018, 05:15 PM

RE: Philco 112 speaker to permanent magnet - by dirkbuddy - 03-23-2018, 06:07 PM

RE: Philco 112 speaker to permanent magnet - by Radioroslyn - 03-23-2018, 06:54 PM

RE: Philco 112 speaker to permanent magnet - by dirkbuddy - 03-23-2018, 07:27 PM

RE: Philco 112 speaker to permanent magnet - by morzh - 03-23-2018, 09:04 PM

RE: Philco 112 speaker to permanent magnet - by Ron Ramirez - 03-23-2018, 09:20 PM

RE: Philco 112 speaker to permanent magnet - by Radioroslyn - 03-23-2018, 09:52 PM

RE: Philco 112 speaker to permanent magnet - by mikethedruid - 03-24-2018, 04:37 AM

RE: Philco 112 speaker to permanent magnet - by dirkbuddy - 03-24-2018, 07:49 AM

RE: Philco 112 speaker to permanent magnet - by Ron Ramirez - 03-24-2018, 09:28 AM

RE: Philco 112 speaker to permanent magnet - by Ron Ramirez - 03-24-2018, 09:38 AM

RE: Philco 112 speaker to permanent magnet - by Radioroslyn - 03-24-2018, 10:21 AM

RE: Philco 112 speaker to permanent magnet - by morzh - 03-24-2018, 10:51 AM

RE: Philco 112 speaker to permanent magnet - by dirkbuddy - 03-25-2018, 07:21 AM

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