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Title: Straightening Black Rubber Straight Handset Cord
Post by: gands-antiques on March 26, 2018, 10:51:54 PM

Looking for a good way to straighten straight rubber handset cord for a 302 with rubber insulated conductors.

I've already tried two 170 degree oven bake cycles at 15 and 20 minutes. Some improvement but still not real straight.

Thanks,
Gary

Title: Re: Straightening Black Rubber Straight Handset Cord
Post by: Jim Stettler on March 26, 2018, 11:16:55 PM

Here is as theory I have heard:
Use a 1-1/2- 2" PVC pipe. suspend the cord down the center and add a weight to stretch it straight.
That is the basic part.
The next step is to use a hair dryer blowing into the PVC to heat the cord to help straighten it.
Sounds like it would work. I have never tried it.
Good-Luck,
Jim S.

Title: Re: Straightening Black Rubber Straight Handset Cord
Post by: gands-antiques on March 26, 2018, 11:28:21 PM

Thanks Jim,

I had heard about the PVC pipe process before but never tried it. I would think hair dryer heat would be less likely to damage the cord than an oven. Thanks for the reminder.

Thanks,
Gary

Classic Rotary Phones Forum

Telephone Identification, Repair & Restoration => Telephone Restoration Projects and Techniques => Topic started by: gands-antiques on March 26, 2018, 10:51:54 PM