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Philco 49-909
#7

The filter capacitors (all 4 of them) can be replaced by modern equivalents. You can either disconnect all wires to the "can" and mount them under the chassis, or gut the can, melting out the tar, etc... and stuff the new ones inside.
You can use or 33 mf caps to replace the 40 mf sections , and 22 mf to replace the 20 mf ones. Observe how they are hooked up. If the 117Z3 dies, you can replace it with a silicon diode and a 100 ohm 5 watt resistor, but let's not go there yet.

I would go with 450 VDC versions, as they are only pennies more. Replace all the paper capacitors as well with 630 volt mylars, and you should be good to go. Make a complete list of what you need lest you have to pay twice on shipping.

Several great vendors for small orders are available. One is http://www.justradios.com . Others will mention more sources, I'm sure.


Messages In This Thread
Philco 49-909 - by dos0711 - 11-23-2010, 09:32 AM
Re: Philco 49-909 - by codefox1 - 11-23-2010, 01:44 PM
Re: Philco 49-909 - by Carl Travis - 11-23-2010, 03:27 PM
Re: Philco 49-909 - by dos0711 - 11-23-2010, 03:35 PM
Re: Philco 49-909 - by Ron Ramirez - 11-23-2010, 04:55 PM
Re: Philco 49-909 - by dos0711 - 11-24-2010, 03:58 PM
Re: Philco 49-909 - by codefox1 - 11-24-2010, 05:01 PM
Re: Philco 49-909 - by dos0711 - 11-25-2010, 12:57 PM
Re: Philco 49-909 - by codefox1 - 11-25-2010, 01:56 PM



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