Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Control extension shafts.
#1

Not sure if this is the right forum, but here it goes..

  Sometimes we have no choice but to replace a volume/power switch or other control on these old radios. Ive noticed the newer replacements dont have the same shaft length as the originals they replace..

Ones ive seen (shaft extenders) on the bay are way too long , or not the correct diameter..

Is there a source im missing out on, or is there a machinist in the house (Steve Davis?) that could turn out a few slide on shaft extenders with a setscrew that could be used on 1/4 inch shafts to compensate for the loss?

In my current situation, my replacement control is  1 3/8" length, where the original was at least 2"

Just wondering if theres a fix  in a situation as mine?

Thanks..

Steve
#2

Radio Daze sells shaft couplers. With one of these and a piece of .25 in. aluminum rod you can make any length.
#3

If you can find a NIB replacement - -

Most generic replacement pots came with long shafts. You were expected to cut them to length.

"I just might turn into smoke, but I feel fine"
http://www.russoldradios.com/
#4

Didnt see the couplers on RD, just alot of dials kept popping up in the search.. Looks like im in a holding pattern on this project until i come up with something... Unless someone has a long shafted 500k potentiometer with on/off switch... Icon_problem

Steve
#5

I found this on eBay.....
https://www.ebay.com/itm/NOS-Vintage-196...SwVN1cOMNU

and this
https://www.parts-express.com/500k-audio...C8QAvD_BwE
#6

The one from parts express looks exactly like the one i just purchased, do those measurements translate to a 1 3/8" long shaft?

Steve
#7

actually, upon reading the details, I think you're right. The picture is deceiving.
#8

Since Radio Daze didn't have the couplers, I found another source:

https://www.sparkfun.com/products/12251




Users browsing this thread:
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Since you stated earlier, you have a console 38-7XX.  They also had a 38-7T (table), and 87-7CS (chairside).  A very nic...GarySP — 01:18 PM
Part numbers to model cross
That I wouldn't know, but sometimes the radio document itself shows one, same as the capacitor cans' etc pinouts.morzh — 12:46 PM
Part numbers to model cross
Thank you morzh, that is exactly what I was looking for. Now , is there some where that shows pinouts for Philco power ...Jim Dutridge — 11:37 AM
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM

[-]
Who's Online
There are currently 1444 online users. [Complete List]
» 2 Member(s) | 1442 Guest(s)
AvatarAvatar

>