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

Sparks-Withington
#1


I have a S-W Spartan Jr. Model 400 (according to the chassis plate.) I understand the S-W Models 410/420 are identical or darn close. I do not have the schematic. Looking the unit over I notice the covers on the main power xfrmr have been removed and several wires were crudely spliced to the winding, one has fallen off and it is virtually impossible to resolder it.

Are these transformers still available or am I out of luck. Also where is the power on/off switch. The volume control does not appear to serve double duty as volume/power on/off ??

I had an exchange with another forum member Bandersen who has restored one of these radios (beautiful job).
#2

Here's a detailed write up of my restoration project: http://mail.videokarma.org/showthread.php?t=247842

The power switch on mine is a toggle mounted through a hole in the side of the cabinet. However, there is a mounting bracket on the volume pot and a little wire stub that can flick the toggle. I have also seen other Spartons where the switch is mounted on the pot. I did some experimenting and found it wasn't that reliable as sometimes the wire would slip over the toggle and not switch it. I suspect that's why it was mounted on the side.
[Image: http://farm4.static.flickr.com/3390/4607...a053_b.jpg]
#3

Thanks, that is an interesting arrangement, primitive but functional. I'll have to check my radion to see if that apparatus is there. I believe a while back you asked if my chassis had 815 tubes - nope didn't see any. Thanks again.
#4

Actually I asked it it had a pair of 183 or 483 output tubes. Those are very hard to find so I had to slightly modify mine to use 71As.
#5

(03-11-2012, 01:36 AM)bandersen Wrote:  Actually I asked it it had a pair of 183 or 483 output tubes. Those are very hard to find so I had to slightly modify mine to use 71As.

Oops meant 183's - I'll have to look and see exactly what tubes are present. Sent Stephen Johnson a note to see if he has the schematic for this radio..cheers
#6

BTW a pair of 183s just sold for a bit over $200 Icon_eek

I hope you got lucky and have a good pair.




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 16B Parts
I think the chassis is painted.morzh — 08:13 PM
Philco 38-2 Automatic Tuning
Honestrly, the original is quite acceptable and, it seems to me, can be cleaned.morzh — 08:11 PM
Philco 41-608 changer coupler
Mondial left a thread about remanufacturing thois type coupler.morzh — 08:09 PM
IF can wire size and Rubber mounts?
Are you talking about rewinding or rewiring? For rewiring, meaning runnin wires to the coil from other components, the ...morzh — 08:08 PM
12' Philco
I wonder who would be able to "no stoop" with this one.morzh — 08:05 PM
IF can wire size and Rubber mounts?
Hello PHORUM members, I am still working on restoration of my PHILCO 37-640.  I want to start with rewiring the IF ca...georgetownjohn — 06:32 PM
Philco 41-608 changer coupler
I am working on a Philco 41-608 with the gear-driven changer.  The coupling (#35-2220) between the motor assembly and th...alangard — 06:29 PM
Gilfillan Brothers Car Radio?
There is a Mission Bell model 19/19A that could be what you’re looking for, Riders vol 4. It has the tube line-up of: 0Z...Joe Rossi — 05:01 PM
Looking for verification of correct schematic.
Definitely 870044RossH — 01:12 PM
12' Philco
Wonder if the chassis was big too.daveone23 — 12:38 PM

[-]
Who's Online
There are currently 3938 online users. [Complete List]
» 4 Member(s) | 3934 Guest(s)
AvatarAvatarAvatarAvatar

>