Unknown philco amp - Printable Version

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+--- Thread: Unknown philco amp (/showthread.php?tid=801)

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Unknown philco amp - Guest - 10-25-2007

Hello all,
this item is not really a radio, so please excuse me if this is the totally wrong place where to posto this question. But this was the only philco forum I found and this indeed is made by philco...
I firend and I found this big amp + turntable in his grandfathers' house. It bears no model number on the outside except for a big PHILCO logo:

[Image: http://www.xhero.org/DSCN7637.JPG]

Does anyone know what model this can be and where to find a schematic? An uncle of my friend more or less remembers building this thing from a kit in the '60.
The only markings are in the PCB found disassembling the unit:

[Image: http://www.xhero.org/DSCN7664.JPG]

27-7174
PHILCO

As you can see the PCB was modified. In fact a tube was removed:

[Image: http://www.xhero.org/DSCN7645.JPG]

There are four tubes but we where only able to identify 3:
2x EL84
12AX7

The fourth bears no markings and has an octal socket with only 5 pins attached (it is the large valve near the power transformer). This should be some kind of rectifier.
Does anyone have more info?
Thanks
Rodolfo

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- Don Lind - 10-26-2007

That chassis not look like anything Philco built. Someone may have started with a Philco amp to make a custom Hi Fi. Note the oversize power transformer, missing parts, outboard electrolytic, no chassis ID, and other signs that indicate it did not leave a Philco factory in that condition.

Even if you identify the original chassis, I doubt the service information would help much because of the extensive rework. Good luck.

Don

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