Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
Restoration not going so good. Set receives FM well, SW sporadically, BC never. Cleaned band switches the best I can. They are NOT easy to get to. Guess I'll have to have my radio buddy in town bring his signal generator over and see what we can see. Without dial stringing couldn't select stations anyway unless I leave the back off and that's problematical with a plug/power source integrated into the back.
Posts: 15,444
Threads: 539
Joined: Oct 2011
City: Jackson, NJ
BC is the easiest of all, you'll get it.
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
BC acts like it's going to ground somewhere...but where?
Posts: 15,444
Threads: 539
Joined: Oct 2011
City: Jackson, NJ
BC and SW antenna circuit is separate from FM, right? Given they both have problems, I'd look at that.
Is the oscillator also separate? Those could contribute to misbehaviour.
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
Stamped on the back; "FM 13 circuits AM 8 circuits" I don't know which tube is the oscillator--all tubes are foreign numbers which I'm not familiar with.
Posts: 4,639
Threads: 51
Joined: Sep 2008
City: Sandwick, BC, CA
The problems with the AM broadcast band likely lie with that infernal band switch. I'm trying to recall which tube numbers they liked to use for the mixer oscillator tube but it's more then likely a triode-heptode of some sort, like an ECH83, or an ECH81. I have a personal dislike for most German radios, I would not pay any real dollars for one but in this case it was a gift and likely worth spending some time on. If anyone has a sudden urge to acquire a European set try a Phillips product, or possibly a Pye.
Regards
Arran
(This post was last modified: 07-30-2014, 07:18 PM by Arran.)
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
ALL the tubes tested good or very good on a TV7 tube tester. So I don't think the problem is a tube/tubes.
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
Thanks to Frank K. I now have a dial string diagram!
Posts: 669
Threads: 145
Joined: Jun 2011
City: Elko,MN.
Good luck with yours Art.
I brought home a 5005w set tonight.
10 tubes and 2 speakers and weighs about 20 lbs.
Needs a good de-spider webbing and dust removal, but I do have audio.
No stations though.
Everything is in german, so I am not sure which band is am.
Need a couple knobs for mine.
i think it's about a 1951 or 52 model.
murf
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
murf
Do you have a schematic? (Of course, it will be in die Deutsche)
Art
Posts: 669
Threads: 145
Joined: Jun 2011
City: Elko,MN.
Havent found one yet.
Here is an interesting problem,
The lights on each side of the dial illuminate, but yet they do not illuminate the dial.
If I shine a bright light in the hole, they kind of light up the dial, but not like they should.
I know you are going to say, the light hles are plugged up, or the lights are not bright enough.
Any other obvious suggestions?
murf
(This post was last modified: 08-08-2014, 09:37 PM by murf.)
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
I just did a search on Google for Grundig 5005W. There is a schematic on one of the hits.
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
--
Ron Ramirez
Ferdinand IN
Posts: 403
Threads: 40
Joined: Feb 2011
City: McPherson, KS
Small success today! Figured out the FM tuning string configuration (with Frank Karner's diagram that he sent me). Needed 3 hands to hold, tension, and tie an end loop. What a pita! Glad to have a spouse willing to lend her hands. Hopefully the radio will still play. AM/SW challenge is next, particularly to get it to play on those bands.
Ever work with a wire tuning string tied by a spring to a cloth tuning spring??
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Cannot Adjust an IF Transformer’s cores
|
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM |
PT-6 antenna connections
|
I seem to have lost my way on this PT-6.
I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM |
40-150 General questions
|
Good thing you're a good electrician ... the pictures show a lot of rewiring in your future! Take care and BE HEALTHY!...GarySP — 11:52 AM |
40-150 General questions
|
I think RobB has it right. It is a part number and looks like its stamped on the chassis and that wasn't something you ...klondike98 — 11:41 AM |
40-150 General questions
|
It's most likely a part number. Most of Philco part numbers are in that format. I looked at the parts list for this mode...RodB — 08:10 AM |
40-150 General questions
|
Hi Kevin,
No, I don't but I like your Quote about being a good electrician. The way I look at it is "The fact ...MrFixr55 — 08:06 AM |
Philco 38-7 Speaker
|
7K should be fine. While not a perfect match (This transformer is meant for 6V6 tubes), Antique Electronic Supply (AES)...MrFixr55 — 08:03 AM |
40-150 General questions
|
I discovered a stamp on the underside of the breadboard on my Philco 40-150. It is"56-1417' in black ink with numbe...Kevin_D — 07:14 AM |
Philco 38-7 Speaker
|
FYI the Impedance of the HR20 (the one I have) secondary of the audio transformer is 5 ohms. The 38-7XX speaker is suppo...tludka — 04:22 PM |
Philco 38-7 Speaker
|
Yeah, don't use the transformer currently on the H-20 (Dopf, I thought "H20, is that new technology, a speaker usin...MrFixr55 — 03:51 PM |
Who's Online
|
There are currently 2773 online users. [Complete List] » 2 Member(s) | 2771 Guest(s)
|
|
|
![>](https://philcoradio.com/phorum/images/bootbb/asb/right_arrow.png)
|