Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

41-290 Component Values
#1

I attempting to restore a 41-290 (code 121) and have identified a couple of discrepancies between the as built (as-manufactured) unit and the available schematics. Specifically, item #41 (resistor) is specified as 33K ohms whereas the resistor installed is 100K ohms and item #45 (capacitor) is specified to be .01 mf where as the installed item is .003 mf. As far as I can tell from visual inspection the 100K ohm resistor and the .003 mf cap appear to be as factory built. The following illustration details the discrepancies.

Any thoughts from the members/experts will be appreciated.







Note from site admin: Sorry, but the photos which were attached to this post are no longer available.


Messages In This Thread
41-290 Component Values - by TFB - 03-08-2010, 05:25 PM
Re: 41-290 Component Values - by Ron Ramirez - 03-08-2010, 07:50 PM
Re: 41-290 Component Values - by TFB - 03-08-2010, 10:10 PM
Re: 41-290 Component Values - by dberman51 - 03-09-2010, 08:27 PM
Re: 41-290 Component Values - by Ron Ramirez - 03-09-2010, 08:30 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM
Part numbers to model cross
Jim, We have this index put together by Dale Cook but I don't think that is quite what you are looking for. The Parts...klondike98 — 09:37 PM
Philco Model 38-7: what caps & resistors do fail typically?
Yep the dim bulb test is OK but I'd definitely replace all those electrolytics before I did it. Since those #47 conden...klondike98 — 09:18 PM
Philco 42-345 Restoration/Repair
The resistor is a 2.2 Meg, it was the last one I hadn't replaced. The broadcast is coming in after replacing it.osanders0311 — 09:09 PM
Philco 42-345 Restoration/Repair
What does the resistor measure? I think it should be 3.3 Meg. If the oscillator coil has continuity and the resistanc...RodB — 09:03 PM
Philco Model 38-7: what caps & resistors do fail typically?
Good idea to check the coils... then I'll get hold of an incadescent light bulb and see what happens when the unit is sw...Musaeum — 08:49 PM
Philco 42-345 Restoration/Repair
I have that same set, ain't too much shortwave I like anyway.....it is a good AM DX set. PaulPaul Philco322 — 08:32 PM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum, Martin! Open a new thread in Philco Electronic Restoration when you begin working on your 38-7. ...GarySP — 08:28 PM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum! :wave: Here's the schematic for that radio from our digital library: Something to do bef...klondike98 — 08:05 PM

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

>