Rare REED-TYPE Speaker in a 1964 Transistor Radio RESURRECTION - GE P807J [4K]

Let's take a look at this rare reed-type speaker in this 60 year old transistor radio. This type of speaker was mainly used upwards of 100 years ago in the horn speaker days, but GE did use this design in some radios in the early 60s. The reed speaker was known for its efficiency with power requirements, and due to the impedance of the coil that powers it, it does not require an output transformer. It can run quite well being driven by a single transistor as a Class A amplifier.

Unfortunately, this little radio does not work. Let's see if we can bring it back to life, and hear how this interesting speaker design actually sounds.

See the checklist which appears when status changes, for tracking what is discovered that needs addressing in Red, followed by Green when resolved.

NOTE: This is not instruction, it is for entertainment for people like me who enjoy watching projects and the experiences gained. If you attempt to do any of the things in this video you are at your own risk. I am using special tech-bench safety equipment not detailed here so don't take for granted you can just plug these old items in safely without them being checked and repaired correctly. Check out the link below to Mr Carlson's Lab video below.

ACKNOWLEDGEMENTS AND REFERENCES:
[note: am in no way representing how these folks have shown doing these things - I don't even think they would approve.]

Thanks again to Tony at xraytonyb for a great way to attach an inexpensive frequency counter to a signal generator and power it from the generator as well.    • Tenma Signal Generator Mod and Demo  
‪@xraytonyb‬

Thanks to shango066 for championing the approach of "fix it first", before mass re-capping. See shango066 for many examples of that approach.
@shango066

Awesome discussion of bench safety including variacs and isolation transformers by Mr Carlson's Lab (highly recommended):
   • Tech Tips Tuesday, Isolation Transfor...  
‪@MrCarlsonsLab‬

Modification method for a commercial Tripp Lite isolation transformer for tech-bench use by Todd Harrison, his channel is called ToddFun:
   • ToddFun.com: Isolation Transformer - ...  
‪@ToddFun‬

People who may enjoy this video will interested in: portable transistor radio, General Electric transistor radio, 1960s radio, radio repair, radio troubleshooting, capacitor wizard meter, old radios, AM radios

Camera: Canon G7X Mark III
Mic: Rode Micro
Video Editing Software: Power Director
Video Editor: just me