Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

610 schematic parts layout for filter circuit?
#1

http://www.nostalgiaair.org/pagesbymodel...013797.pdf

What I see in the set and what I see on the parts layout don't seem to match here. It looks to me like filters C41, C55, C56 are switched on the parts layout. In fact, there seem to be several small part number errors on the part list as well.

It looks to me like the parts layout labels C41 as C54, C54 as C56, and C56 as C41.

On the set, the 8uf cap that has its negative side connected to the large end of R57 and the CT of the HV secondary also has the cardboard insulator and a 10K resistor connecting it to the electrolytic above it which should be the 16uf cap (part C41). The one on the position labeled as C56 has connections to the output transformer and C47.

On the parts layout, you can see the cap labeled as C41 has three rings on the outside which would indicate it is the one with the cardboard insulator, right?

Likely, this is documented somewhere, but I'm not finding it. Unless I hear otherwise from you Philco experts, I'm going with the layout I find in the set and following the schematic.

Here is a photo of what I see; that red wire going across the photo between the green and red resistors connects the e-cap on the left top to the CT and large end of the wire wound resistor:

   

The broken resistor is grey with silver at each end? 

Charlie in San Antonio
#2

>The broken resistor is grey with silver at each end?

PN 40 25K 2W

Terry
#3

http://philcoradio.com/phorum/showthread.php?tid=215  I was just working on a 610 a few months back and I recall there were errors in the schematic and if memory is good they are documented in the changes.zip file (above) that Ron generated.  If you order a set of docs from Chuck, it will be in there also.
#4

Ah, yes! Bulliten note number 217. There it is. Thanks.

Charlie in San Antonio




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
I seem to remember eliminating a squeal by changing the IF frequency by a few KHz. Not that you should put too much tru...fenbach — 08:48 PM
Philco 42-390, code 121 speaker
These speakers pop up on eBay regularly, even if at bloated prices. Honestly, have not seen many parts on swapmeets.morzh — 08:38 PM
Philco 38-7 Speaker
The put-put is not like the speaker problem.morzh — 08:29 PM
Mission Bell Model 19A Car Radio
Hello everyone,  As mentioned in my last post I was going to see if the vibrator / rectifier section could be persuaded...Antipodal — 08:21 PM
Philco 60 Squealing
Wondering if I did it backwards. If a coil was wound backwards, the oscillator would not work at all. Old school...Chas — 07:23 PM
Philco 38-7 Speaker
4-ohm speaker. Black, Green leads.tludka — 07:00 PM
Philco 42-390, code 121 speaker
#87 on the schematic.  This radio had a 8" Zenith  speaker attached to it when I got it. I do don't know the hist...Stevelog — 06:39 PM
Philco 60 Squealing
I'm pretty sure I now have the litz wire soldered. This did not make any difference. Back in April I rewound the seconda...dconant — 06:25 PM
Philco 38-7 Speaker
Just to make sure, you chose either 4 ohm into 5K or into 10K? (blk-org or blk-grn)morzh — 06:23 PM
Philco 38-7 Speaker
I have let this one sit because of other duties. Now I am back, and I have a couple of questions. I hooked up a Hammond ...tludka — 05:34 PM

[-]
Who's Online
There are currently no members online.

>