Philco 60 restoration

[bandersen]

Originally Posted by polyphase

I have to agree with this. A 250Hz tone has a wavelength of about 4ft, so at least a partial acoustic short circuit would exist here, right in the critical lower midrange. 100Hz material, if deliverable from this set (I suspect it is), would pretty much be cancelled out.

I'll definitely do a comparison with and without once I get it running.

Originally Posted by Reece

It would appear that the 8035-D is wired correctly with the mounting lug being the ground end of the .00011 mfd. cap.

Yeah, I followed the schematic so it should be OK.

Speaking of schematics, I couldn't find this gooey looking thing on mine. I did a little research and discovered that it's a wavetrap added to later revisions. The bubbling goo appears to be old wax.


Here's the rebuilt metal box cap.


Call me crazy, but I don't like rust. So, I unmounted the power transformer and removed the clamshell covers.


Then, I removed the rust and sanded them a bit.


Here they are after some primer. Next up, some black enamel.

[leadlike]

Oh yeah, that web site on the progression of circuit changes in the Philco model 60 is essential. From that, I was able to determine mine was the last revision.

On the Nostalgiaair website, there is an article: The Philco Model 60 Repair That Almost Wasn't, where the poor guy basically goes to recap the thing, says, hey- this radio has some weird changes, and alters his Philco back to the original style, only later realizing that those changes were intentional!