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

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, 08:32 AM
Re: Philco 49-909 - by codefox1 - 11-23-2010, 12:44 PM
Re: Philco 49-909 - by Carl Travis - 11-23-2010, 02:27 PM
Re: Philco 49-909 - by dos0711 - 11-23-2010, 02:35 PM
Re: Philco 49-909 - by Ron Ramirez - 11-23-2010, 03:55 PM
Re: Philco 49-909 - by dos0711 - 11-24-2010, 02:58 PM
Re: Philco 49-909 - by codefox1 - 11-24-2010, 04:01 PM
Re: Philco 49-909 - by dos0711 - 11-25-2010, 11:57 AM
Re: Philco 49-909 - by codefox1 - 11-25-2010, 12:56 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
AC/DC Transformer-less Sets
Fantastic report, Mr. Fixr! I had never read about AC/DC sets originally running at a higher price than AC-only models, ...jrblasde — 01:21 PM
49-504
Also wheni first power on the 7a8 gets very bright more than normal not sure what I did wrongphilco4me — 12:53 PM
49-504
Hello all I am doing a 49-504 and in section 4 I see C401is that a 5mmf ? I did not see that when I replaced the caps. ...philco4me — 12:47 PM
Looking for place to donate unique Philco Philco J-1930 Prototype
Thx for the description. I thought that it had to have a single 10 - 12" Sensor. Congrats on restoring the GE and...MrFixr55 — 10:12 AM
AC/DC Transformer-less Sets
Some of the original Edison DC generators were in use until the 1940s. The NYC subway and electrified Long Island Rail ...MrFixr55 — 09:39 AM
Samlex heavy-Duty bench supply filter question
I suggest sticking with the original values. Depending upon the design if you increase the cap values too much the incre...DaleHCook — 08:55 AM
AC/DC Transformer-less Sets
You’re welcome! I was born in 1995, so this is all second-hand information to me from the industry. I did some research ...jrblasde — 08:38 AM
Samlex heavy-Duty bench supply filter question
Hello Everyone, I have one of my Heavy-duty bench powersuplies made by Samlex it's 13.8 volt dc 20-25 amp supply. What I...radiorich — 11:24 PM
Looking for place to donate unique Philco Philco J-1930 Prototype
It's a Glaser Sears changer which Philco's engineers thought was an upgrade over a VM, but in retrospect I'd prefer the ...jeibner — 10:39 PM
AC/DC Transformer-less Sets
Joseph, Thank you for the confirmation. I knew that there must be more to the Transformer-less AC/DC radios than the ...PeterN — 10:30 PM

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

>