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Philco 90 speaker qustion
KCMike
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#7

07-31-2016, 08:30 PM
Icon_smile Okay the white speaker wire which is connected to brn. wire of the OPT. is one of the plates of output tube, it is also correct at the plug pin and socket hole.

the blk/wht speaker wire is connected to blue wire of OPT and is the other tube plate. It also is correct at the plug pin and socket hole.

The red center tap wire of OPT is connected to the other field coil wire and speaker plug pin that goes to D socket and is correct.

The other speaker wire, green, connects to the field coil wire and its pin out goes to correct socket hole E that has the primary of AF transformer attached to socket inside the chassis

The voice coil wires are connected to secondary # 5 & 6 of OPT. which on the series connection chart on the Hammond box shows that at 1.5 VC impedance would be 8500. I did try 1-3 connection that's 5400 it didn't sound as good.
(This post was last modified: 07-31-2016, 08:31 PM by KCMike.)
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Messages In This Thread
Philco 90 speaker qustion - by KCMike - 07-31-2016, 02:15 PM
RE: Philco 90 speaker qustion - by morzh - 07-31-2016, 02:34 PM
RE: Philco 90 speaker qustion - by KCMike - 07-31-2016, 04:02 PM
RE: Philco 90 speaker qustion - by morzh - 07-31-2016, 04:30 PM
RE: Philco 90 speaker qustion - by KCMike - 07-31-2016, 05:14 PM
RE: Philco 90 speaker qustion - by morzh - 07-31-2016, 07:09 PM
RE: Philco 90 speaker qustion - by KCMike - 07-31-2016, 08:30 PM
RE: Philco 90 speaker qustion - by morzh - 07-31-2016, 09:37 PM
RE: Philco 90 speaker qustion - by KCMike - 07-31-2016, 10:05 PM
RE: Philco 90 speaker qustion - by KCMike - 08-01-2016, 09:27 PM
RE: Philco 90 speaker qustion - by morzh - 08-01-2016, 09:59 PM



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  1. The PHILCO Phorum
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