The PHILCO Phorum

Hi, everyone,

So, I'm back working on the Philco Radio. I almost forgot to list it. I'm working on a Model 42-322. And, I might be getting a 42-321 next weekend. One issue that I have is the speaker has a gaping hole torn into the cone. Even if I try to piece it back together, I'll still be missing a chunk. And looking through the information so far, I can't seem to find a suitable replacement. In fact, when I go to Philco Radio and search there, they don't even list my speaker or output transformer at all.

So, my questions are, does anyone know of a suitable replacement for the speaker/assembly? Or, what methods would you recommend for trying to repair the speaker cone? According to the specs, the speaker is a 36-1533-9, the assembly is a 36-4190, the output transformer is a 32-8164, and the field coil is integrated into the speaker (it says "Field Coil: Replace Speaker 36-1533").

Thanks for your help. I'm a long way from actually needing the speaker, but it's better to find it and get it early than not be able to get it later. And I'm going to be back with lots of questions about how to determine which capacitors and resistors to use for replacement (actually if someone wants to chime in about that here, that would be awesome.  )

Have a great weekend.
Patrick.

If the hole in the speaker isn't too big, you can use a paper coffee filter and service cement. But if it's a keeper, you can send it out to be re-coned.

I use a stiff paper and acid free glue. The cone is stiff so you'll want to keep the patch stiff. I use a coffee filter for repairing rips.

Rod

You will want to replace electrolytic caps with aluminum electrolytic caps of the same or close to original capacitance, same or higher voltage. Buy the Japanese ones, like Nichicon, or Illinois Capacitor. Replace molded/waxed paper caps with plastic mylar film of nearest capacitance value and 630 volts.

SOAP BOX WARNING: Some people like doing this so much that they only replace the caps that measure bad or look charred/cracked then open the radio at a later time to replace one that failed. I replace all paper and electrolytic caps. They exceeded their end date long ago.

I use 10% as a tolerance for replacing resistors.

I usually buy parts in bulk, it reduces unit cost greatly. Buy 10 or 100 and compare unit cost. I'll buy from Mouser but if I'm ordering a speaker or transformer form one of our Phorum vendors I will check my supply and restock.

As you replace each part, verify that it exists on the schematic and mark the schematic with a highlighter. You'll find that someone before you has replaced a part with a different value so you will have to resolve the issue.

GL and ask us, we're here to help (use pictures).
Rod

I've used black construction paper on occasion to repair holes in speaker cones. The paper can be found at almost any arts and crafts store. You could try fabric glue, also found at the same stores. Take care and BE HEALTHY! Gary

Hi,
Don't remember which speaker this set uses. Some of the PT models use a 6"X4" oval speaker. These are pretty hard to find the 6" round are a little easier. Reconing in difficult as the parts are difficult to come by. Some auto speakers are the proper size but the magnet is giant.
OPT are 1500-2000 ohms to voice coil.

So, it's the 6 x 4 (just my luck). I found a place in Florida that will recone it for $72.00 + shipping. Which isn't bad, since I plan on being buried with the radio (Gotta do something to pad the coffin weight, you know.  ).

I found a 42-321 about 2 hours away from me that I might pick up this weekend. I'm thinking I have a problem. LMAO Since I have the Philco, a Zenith Transoceanic T600 (in excellent shape), another Zenith that was a junk find after a hamfest, a Travler 5015, and I'm looking at more. 

Is there a Radio Restorers Anonymous group?

Have a great day.
Patrick.

Hi, I'm Rod and I restore radios.

So, it's the 6 x 4 (just my luck). I found a place in Florida that will recone it for $72.00 + shipping. Which isn't bad, since I plan on being buried with the radio (Gotta do something to pad the coffin weight, you know. Icon_biggrin ).

Speaker Exchange in Tampa? They do good work

The one I found was the speaker shop www.thespeakershop.com out of The Villages, FL. I'll look for the Speaker Exchange and see how they compare.

Have a great day, and thanks for the tip (inadvertently maybe).
Patrick.

thats nick dorazio, he did an 84b speaker for me and a zenith 4.5'' for a table top set. he did good work for me