Speaker Field Coil - Getting Things Back Together & Basic Testing

Wrapping up on the Emerson R-156 Electrodynamic Speaker for a great friend by getting the new field coil placed, the original speaker cone installed, fabricating and installing a new gasket out of cardboard followed by some basic testing.
Thank you for watching and subscribing to my channel on vintage radio repair.

[@willstillill9591]

Thank you magnificent work

[@TheRadioShop]

Brilliant! I do not think most folks know just how much work goes into rebuilding a speaker like this. You really shined on this one Don.

[@RestoreOldRadios]

+The Radio Shop I really appreciate that Buddy. It seems simple enough on the surface, but lots of little things that can make for a bad day. Lol Thanks again. Best, Don

[@carpenter123154]

I thoroughly enjoyed observing your repair process. This whet my appetite for field coil speakers.

[@RestoreOldRadios]

Glad you enjoyed it. They are fun to work on and it’s cool to hear them again. Thanks for watching and reaching out. Best, Don

[@ianbutler1983]

Don, you are patience personified-your videos inspire me to slowdown and enjoy the process. Thanks.

[@RestoreOldRadios]

+Ian Butler Thank you sir, I really enjoyed this project. Best, Don

[@bradleyleben7785]

OCD! Organized, competent, deliberate! Excellent series. I really enjoyed these videos. Thanks! You give me more confidence.

[@RestoreOldRadios]

Thanks Bradley. Have fun, be safe and enjoy the hobby. Best, Don

[@nor4277]

Your speaker repairs are so cool watch and learn from.

[@RestoreOldRadios]

Ron Thompson Glad you’ve found them helpful. Best, Don

[@pethoviejo]

Very good, Don. The acorn nut on the pole piece is a nice touch

[@RestoreOldRadios]

+pethoviejo I appreciate it. I agree, the acorn tops it off. Thanks again for viewing. Best, Don

[@nor4277]

Radio surgon,only guy that I no that does this level of work.amazing stuff to watch ,thanks

[@RestoreOldRadios]

Thank you Ron. Every project is an opportunity to learn something new. Best, Don

[@charlesw318]

You really did a great job very good looking speaker keep the videos coming thank you.

[@RestoreOldRadios]

+Charles Williams Charles, I really appreciate your kind words and taking time to watch. Best, Don

[@ericdumptee9084]

Wonderfull!! The TALENT you have to restore what is there vrs putting a 'used' item in place...CONGRADS..We learn ALOT from your vids!

[@RestoreOldRadios]

Thank you Eric. Best, Don

[@HarrisonFrazier]

Beautiful restoration!

[@RestoreOldRadios]

Much appreciated and thanks for watching. Best, Don

[@bobkozlarekwa2sqq59]

You really do nice work - such attention to detail

[@RestoreOldRadios]

+Bob Kay Thank you Bob, I really appreciate it. Best, Don

[@Backtothefutureradios]

Nice job Don! A lot of work but very well done, great explanation of what all was involved. Thanks for sharing this! Best--Larry

[@RestoreOldRadios]

+Backtothefutureradios A little tedious at times but worth the effort. It looks better than new and I hope the performance is equal. Thanks again Larry. Best, Don

[@JohnAdams-hd5mw]

Don, my name is John. I am restoring a chassis for a customer and the cabinet was done by Bruce up in Grand Rapids. I was wondering, do you re-cone for customers still. The speaker that he has is working but the cone is really bad even though I repaired it just so he could listen to it. I love your work so as a avid follower I thought I would ask for him. If so I am on Facebook as Radio Hound and you can look at the restoration album. It is a Zenith 12-S-475. Darth Vader. You can let me know on here or there. I love your work and detail. I learn so much from you. I will understand if you can't do it but maybe you know some one who does. He has put a lot of money in this and wants it done by the best. Thanks in advance.

[@RestoreOldRadios]

John - I know with Bruce refinishing the cabinet, this radio will look amazing. The Zenith Darth Vader is a special radio you are restoring and for the speaker reconing, I would reach out to Nick Dorazio at thespeakershop.com/home.html. Being it’s just a hobby for me, I would recommend someone with Nick's knowledge and experience. Thank you for your kind words regarding my repair efforts, it’s appreciated. I would enjoy seeing a photo or two of the restoration. My email is TheRadioRepairGuy at gmail.com. All the best. Don

[@RestoreOldRadios]

John - just checking to ensure you so my earlier reply. Best, Don

[@skycarl]

Really nice job on this. WTG

[@RestoreOldRadios]

+skycarl Thank you sir. Glad to get this one behind me without any major issues. Best, Don

[@rleeAZ]

Better than new.

[@RestoreOldRadios]

+Richie Allen Thank you Richie. It looks good and I’m hopeful the performance will be equal once back in the Emerson R-156. Best, Don

[@BobbyTB425]

really looks good don

[@RestoreOldRadios]

+bobby burress Much appreciated my friend. Best, Don

[@BobbyTB425]

this is why i am hopeful you can do my radio

[@RestoreOldRadios]

+bobby burress You can count on it. I’ll be honored to fix it up for you. Just let me know when the timing is right. Best, Don

[@JS-wc4xs]

I've got a peerless reproducer (No. B 44545) with a paper cone and a (thin) leather gasket/surround. I'd like to restore moisture into the cone and surround, but I don't want to ruin it either. Any suggestions, tips, advice, etc. It seems 2 b in great shape otherwise(despite the age- 1900-1920s) but I'm afraid to do anything with it. Again any suggestions, tips, advice, etc? Thanks

[@gerryroberts662]

I am trying to do this with an RC 36 Bell record-o-fone speaker. but with no success, If i biuld one from scratch they seem to work.. this one i tried reconeing, and i cant get it to turn over..

[@RestoreOldRadios]

I don’t have a schematic for the unit. I assume your voice coil DC resistance is in check in addition to the output transformer, etc. Best, Don

[@TempoDrift1480]

What was that DC voltage you were applying to the field?

[@RestoreOldRadios]

I don’t recall exactly, but I think around 20 volts DC. The key is really DC current, i.e., the DC current can’t exceed the rating of the Field Coil. In most cases you’ll see 40 to 70 mA of current. Best, Don

[@nor4277]

Anyone no where you can get the dust cover for the center coil ,i no a lot of the older ones were felt ,the newer ones some are plastic cones ,i want to get a couple around for speakers that are missing them,if anyone ones where i might buy a couple of each

[@RestoreOldRadios]

Ron Thompson Check this site out: reconingspeakers.com/product-category/dustcaps-gaskets-cones-spiders-voice-coils/ I've bought supplies from them in the past. Best, Don

[@pep1dog1]

Does the coil get a felt filter or does it stay open?

[@RestoreOldRadios]

+pep1dog1 A modern day speaker yes. Since the speaker belongs to another party, I will defer the dust cap decision to them. Best, Don

[@pep1dog1]

Thanks for the reply.

[@RestoreOldRadios]

+pep1dog1 You are welcome. Best, Don