Philco 59 Antenna Transformer
Posts: 36
Threads: 8
Joined: Oct 2014
City: Belleville, Arkansas
I am working on my Philco 59-C. The antenna transformer part number: 32-1388 has a primary open. I have tried rewinding it with mixed results. I am wondering if maybe someone can tell me how many turns it needs or recommend a replacement.
I found this on e-bay: http://www.ebay.com/itm/Antique-radio-L-...7675.l2557
I already went ahead and bought it, but I am curious whether or not it will work. If it will not work I may use it for another project.
Thanks,
CP
Posts: 15,527
Threads: 545
Joined: Oct 2011
City: Jackson, NJ
Didn't you count turns and notice the directions before you took off the old winding?
Posts: 1,523
Threads: 240
Joined: Sep 2012
City: West Bend, Wisconsin
I can tell you from experience that the coil you bought more than likely will not work. Mainly because, at 2 inches long, it will not fit in the can under the chassis. On mine the OSC coil was open, (and Ron did an amazing job of rewinding it for me), so I had to remove it and saw its length. The antenna coil looked to be the same length, as far as I could tell (didn't have it out), and as such it's at least a half inch shorter than the 2 inch one you found. But save it. As you said, it may work on a different project!
Greg V.
West Bend, WI
Member WARCI.org
Posts: 36
Threads: 8
Joined: Oct 2014
City: Belleville, Arkansas
Thanks, NostalgiaRadioTime! I may try and order the universal one from AES. It is smaller so I would not run into any issues with it fitting!
Morzh, I tried counting the turns of the old winding, but it was bad enough corroded that when I started the unwinding process it just continually broke!
Posts: 15,527
Threads: 545
Joined: Oct 2011
City: Jackson, NJ
Same was the case here but you need to count nevertheless.
Well, I guess too late now.
When you rewound it, how did you decide how many turns you needed?
PS.
If anyone knows the capacitance of the tuning cap (meshed/open), and if we can have exact diameter of the bobbin and length of winding we could try to figure the turns.
Which part of the coil is bad, pimary (antenna side) or seondary (tube side)?
(This post was last modified: 12-28-2014, 06:19 PM by morzh.)
Posts: 36
Threads: 8
Joined: Oct 2014
City: Belleville, Arkansas
It is the primary side that is open.
I decided how many turns it needed based on the space where the old coil was. My uncle and I rewound the coil again last night. We wound the primary the same direction as the secondary and filled the space where the old coil was.
We were able to get stations across the dial, but they were not very loud even at full volume!
Could the wrong number of turn cause low volume? If not then we may have the antenna coil problem fixed.
Posts: 15,527
Threads: 545
Joined: Oct 2011
City: Jackson, NJ
No. First it is a regen.
And it needs alignment.
Without this you are not getting anything very loud save the local stations.
Posts: 36
Threads: 8
Joined: Oct 2014
City: Belleville, Arkansas
I have the regeneration peaked right now.
I managed to pick up Nashville, Tennessee which is about 500 miles from me. I will try and align it and see what results
I get.
Posts: 2,128
Threads: 18
Joined: Oct 2008
City: Merrick, Long Island, NY
Agree, seems like you got the coil problem licked. If you have low volume, problem could be alignment as suggested, or the audio circuit. Best.
Posts: 36
Threads: 8
Joined: Oct 2014
City: Belleville, Arkansas
Thank you guys for the help!
I did an alignment last night and now have great volume!! I will go ahead and check a few more resistors in the audio section, but I think I have the electronic restoration done!
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Correct model 84 Ac plug an cord type
|
From what I read Philco went to using brown rubber power cords in 1936, so cloth was used in the 1935 and earlier models...Arran — 11:25 PM |
Correct model 84 Ac plug an cord type
|
Hi Bruce,
I have not worked on an 84, but in general, power cords for almost any radio prior to 1938 was cloth covered...MrFixr55 — 08:34 PM |
Restoring Philco 38-14
|
OK, well, so after staring at the sch again, I realized the problem had to be the #12/12A padder.
I put a scope on the o...morzh — 08:15 PM |
Correct model 84 Ac plug an cord type
|
Hello Bruce,
I mostly use brown far as my cloth powercords go !
Here is the plug that I have used bakelite Acorn style...radiorich — 08:05 PM |
Correct model 84 Ac plug an cord type
|
Looking for as correct as can find the right Ac plug an the correct colored cloth line. Ive seen many old photos but mos...Bruce — 04:13 PM |
Restoring Philco 38-14
|
Rod
Two Y-caps make sense if you use them from L/N to the chassis; this is only makes sense in the transformer radios...morzh — 10:11 AM |
Restoring Philco 38-14
|
Mike, I'm curious about a specific use of he Y cap. Lately I've seen a single cap across the power transformer primary. ...RodB — 09:01 AM |
Restoring Philco 38-14
|
hello morzh ,
That sounds like a plan !
Sincerely Richardradiorich — 07:45 AM |
Restoring Philco 38-14
|
Richard,
It helped some, but I still had the whining when engaging the rear power strip (I did not realize it was fro...morzh — 07:07 AM |
Restoring Philco 38-14
|
Hello morzh,
Yes , that dreaded hum in my room where i do alighment I have my cable modem and router plus desktop plus ...radiorich — 11:25 PM |
Who's Online
|
There are currently 2435 online users. [Complete List] » 1 Member(s) | 2434 Guest(s)
|
|
|
|