Posts: 25
Threads: 6
Joined: Nov 2010
Hello,
My Philco 37-61 came to me without the AC/Tone switch. It basically was wired to come on when plugged in. I think I have found a substitute switch but need help in how to wire it up. The AC part is obvious, but the tone part is clear as mud to me. Does someone have a nice hires picture of the original switch in place or a sketch of how it's wired up? Also, what is the general opinion of my replacement switch...doable? Good substitution for lack of the original?
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
dos0711 Wrote:...what is the general opinion of my replacement switch...doable? Good substitution for lack of the original? That depends on what you have as a replacement. How many poles? Positions?
Remember, the tone control circuit is separate from the AC switching circuit, even though both functions are handled by the same switch. They are electrically insulated from one another.
--
Ron Ramirez
Ferdinand IN
Posts: 25
Threads: 6
Joined: Nov 2010
Sorry...thought I had posted a link to it...here are some pictures...yes, the ac is a separate switch...
[Image: http://i.ebayimg.com/22/!Bb(uf6!BGk~$(KG...!~~_12.JPG]
[Image: http://i.ebayimg.com/23/!Bb(vWg!!mk~$(KG...Q~~_12.JPG]
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Okay, very good. How many positions does this replacement switch have? Do you have the specifications of this switch, and if so, can you show these here, please? This will help a great deal in determining if it will work. It appears that it will, but the specifications will tell for certain.
--
Ron Ramirez
Ferdinand IN
Posts: 25
Threads: 6
Joined: Nov 2010
It didn't give a lot of info...
Quote:CRL Rotary Switch 2 CKT 3 POS / on off switch NOS USA
He advertised it as being used in a lot of older 40s and 50s radios...
Here is where I'm getting it from...
http://cgi.ebay.com/ws/eBayISAPI.dll?Vie...0365456281
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
That looks like it would be a very good substitute. Now we have to find out how those lugs connect in the switch?
Hmmm...maybe I'll order a few and check them out. Those would make good substitutes in 1937 Philcos that only have a "high" and "low" tone position. They might even substitute for Philco 19 and 89 off-on-band switches.
--
Ron Ramirez
Ferdinand IN
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Just made an offer on five of them; we'll see if he accepts. If so, I'll pin them out for you when they arrive.
--
Ron Ramirez
Ferdinand IN
Posts: 25
Threads: 6
Joined: Nov 2010
Thanks Ron! That would certainly help me out a bunch! I was hoping they would work and help someone in the same boat that I'm in!
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
The seller accepted my offer on five switches and I just paid for them; so when they arrive, I'll be back with more details. 
--
Ron Ramirez
Ferdinand IN
Posts: 25
Threads: 6
Joined: Nov 2010
Ron Ramirez Wrote:I'll be back with more details.
Please do!
Posts: 1,407
Threads: 72
Joined: Oct 2007
City: Linn Creek, MO
The seller accepted my offer also, bought five. They are going fast, looks like he has sold twenty already.
Steve
M R Radios C M Tubes
Posts: 25
Threads: 6
Joined: Nov 2010
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Sorry, my switches arrived two days ago but I've been very busy with my custom-built 97 project which is now complete.
Here is a back view of the switch, showing the contacts and description of each:
[Image: http://i326.photobucket.com/albums/k420/...rminal.jpg]
Now, a schematic of the same switch:
[Image: http://i326.photobucket.com/albums/k420/...switch.jpg]
When the switch is in the "off" or first (1) position, nothing is making any contact. When turned clockwise to the second position, the AC switch makes contact, and the two wipers connect to each of the terminals labeled "2." Finally, when the switch is rotated one more position to the right to the third position, the two wipers now connect to each of the terminals labeled "3." The AC switch remains "on" in positions 2 and 3.
For use as a tone control in Philco models such as the 37-61, only one of the wiper terminals is used, along with the corresponding "2" and "3" contacts. In other words, use the "2" and "3" contacts that are next to the wiper terminal being used. The wiper is connected to ground, nothing to terminal 2, and the proper ends of condensers (40) and (41) are both connected to terminal 3.
This switch should also make an excellent replacement for the off-on-band switch in models 19 and 89 as well as some versions of models 14 and 91.
Note: These switches are supplied without mounting nuts. (At least, my five switches do not have any mounting nuts with them.) However, proper nuts and lockwashers for these should not be difficult to find.
--
Ron Ramirez
Ferdinand IN
Posts: 25
Threads: 6
Joined: Nov 2010
Thanks a million Ron! You couldn't have explained it better!
Users browsing this thread:
|
|
Recent Posts
|
|
Philco 46-480 Electronic Restoration
|
| I forgot to make mention of it the other day, but last week I corrected another error on my schematic (applies to both R...jrblasde — 09:27 PM |
|
Gloritone 27 Radio
|
| I have a model 27 that someone painted the cabinet brown. I've been trying to sell it for awhile but the cabinet paint m...Jim Dutridge — 02:30 PM |
|
Restoring Philco 96
|
| Joseph
Yeah. The situaction is complicated by me living with my family in NJ while mom is in FL.
Were it not for my ...morzh — 10:55 AM |
|
Restoring Philco 96
|
| Best of wishes for your mother. I hope she recovers well. My mother struggles with sciatic pain as well, so I am familia...jrblasde — 10:41 AM |
|
Restoring Philco 96
|
| Well, because I am away, I cannot check it. Hope mom becomes better enough for me to get back.
I think I will be here f...morzh — 10:27 AM |
|
Restoring Philco 96
|
| Nice find! I hope it completes your console.jrblasde — 08:45 AM |
|
Gloritone 27 Radio
|
| Hello john,
That, is the first time I have have seen or heard of that brand and model.
Welcome to the party !!
Sincer...radiorich — 08:08 AM |
|
370 Norman Bel Geddes trim pieces
|
| Thank you! I’ll probably use the half-round molding and tone it to match the original. Thanks for the replies!Max T — 06:34 AM |
|
Gloritone 27 Radio
|
| I'm kind of late to this thread, but Buzz1151 has a 3 part restore series on the model 27:
A little bit of extra t...Eliot Ness — 05:48 AM |
|
370 Norman Bel Geddes trim pieces
|
| You can get half-round moulding in various diameters at any home improvement store. That way the flat edge is uniform. ...GarySP — 12:03 AM |
|
Who's Online
|
There are currently 1583 online users. [Complete List]
» 1 Member(s) | 1582 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
