• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Speaker Wiring Help

S

SpinningJim

New Member
I am working on an old RS 193B.
I have the amp/tubes everything working and am ready to restore them back into the cabinet, sans the record player which was rusted and is not replaced with a newer one.

I just need some help with wiring the speakers/capacitors hooking it all up.

The left channel diagram is in this post, and essentially I need a parts list and directions. And I should be good to go.

(BTW, this is my first project like this.)
IMG_9481.png
 

Attachments

  • image.jpg
    image.jpg
    111.6 KB · Views: 18
  • image.jpg
    image.jpg
    138.5 KB · Views: 17
Register to hide this ad
There are only three parts to the right of the speaker plug - two speakers and a capacitor. What do you need a list of?
 
TriodeLuvr said:
There are only three parts to the right of the speaker plug - two speakers and a capacitor. What do you need a list of?
Click to expand...
Yeah. I could read those parts list, but I was looking for the advice on “how to” assemble it. I really have no idea what I’m looking at.

Plus, it’s older and I’ve already ran into a situation that the tubes can be hard to find.
 
looks like there are two speaker options, need to confirm which you have

but if the speakers are currently installed, all that you'd need to do is unhook the existing capacitor and install the new one to those original connections. Its a 4 microfarad non-polarized, which isn't a standard value now. 4.7 microfarads is probably the nearest available. Guessing thats going to be about a 50v part, but have a look inside to confirm. Its just 2 wires, not really much to mess up.

this is the nearest thing in an electrolytic



if you're feeling fancy and want a film cap, this will do the job. Its also the original value.

 
Someone had attempted to refurbish the cabinet and all I really inherited was the amp, four busted up speakers, no wires from the amp to the speakers, and not much of a clue which option was originally used. I have a feeling, based on the bare bones nature of this model it was the more simplistic of the two. It was only a phonograph, no radio.
 
I can't make out the full thing but its a difference of two speakers per side vs 3 I think.

so speaker + on the 8" to pin 3 on that plug where the shorting jack is. Cap from + on the 8" to + on the smaller speaker. Both speaker - will go to ground on the amp. I don't know what its got going on for connections but most things that don't have a plug use common push-on terminals or screw terminals. From pics I found it looks like this one uses push-on terminals, and the center one is your ground connection.
 
gadget73 said:
I can't make out the full thing but its a difference of two speakers per side vs 3 I think.

so speaker + on the 8" to pin 3 on that plug where the shorting jack is. Cap from + on the 8" to + on the smaller speaker. Both speaker - will go to ground on the amp. I don't know what its got going on for connections but most things that don't have a plug use common push-on terminals or screw terminals. From pics I found it looks like this one uses push-on terminals, and the center one is your ground connection.
Click to expand...
So what is strange, is that the center is louder than the sides. We tested it with some old Sony speakers (ohm midrange w/tweeter).
 
You must log in or register to reply here.
Back
Top Bottom