11-15-2018, 02:02 PM
After I got the dial all back together I wanted to check the shadow meter. I tried to follow the connection back to under the chassis but the layout on this one slightly different than the diagram. I ended up cutting the wires for the coil and measuring the resistance. Was abt 523 ohms but it didn't appear the be working. Popped it apart to find that it was pretty dirty and fuzzy inside. Surprise! You may remember the
picture of this set [Image: http://philcoradio.com/phorum/attachment.php?aid=13455] Fuzzy little bugger!
Gave the sm a good cleaning and it was back working. On this style of sm there's a thumbscrew on the back. This sets the amount of defection and sensitivity of the vane. Screwing it inward increases the amount of defection. If screwed in too much the vane just swings from side to side. If screwed out too much you get a limited response from the vane (not much movement, small shadow). After tweaking the lamp into the proper position it's making a nice shadow where tuning in a station.
Next was another cleaning. The first time I got a lot of the dust and fuzz out but still was kinda grungy. Removed the aluminum coil covers for IF and RF coils and with the aid of a couple of Scotch Bright pads and WD-40 I was able to remove all the dirt and most of the corrosion. Inside the coils more fuzz. The power transformer top, the filter choke, and driver transformer got a cleaning and paint job. Over all it's looking much better!
The speaker took a trip over the bridge to NJ to see Rich Stamer (Sound Remedy). It sounded ok but at low volume the vc was rubbing on the pole causing some distortion and at high levels there was a buzz, might be a loose spider. In between the extremes it sound great!
While I was servicing the chassis the volume failed (open at the ground end) so I couldn't lower the volume much. Called Mark and got a replacement.
On the cabinet the baseboard was badly delaminated and I thought I might be able to reconstruct it but it was a lost cause. Steve "the tool man" Davis was contacted and said he thought he could reproduce one for me. The original was sent to MO.
Kenny Richmond got an order for some chevron grille cloth.
It's all coming together.
picture of this set [Image: http://philcoradio.com/phorum/attachment.php?aid=13455] Fuzzy little bugger!
Gave the sm a good cleaning and it was back working. On this style of sm there's a thumbscrew on the back. This sets the amount of defection and sensitivity of the vane. Screwing it inward increases the amount of defection. If screwed in too much the vane just swings from side to side. If screwed out too much you get a limited response from the vane (not much movement, small shadow). After tweaking the lamp into the proper position it's making a nice shadow where tuning in a station.
Next was another cleaning. The first time I got a lot of the dust and fuzz out but still was kinda grungy. Removed the aluminum coil covers for IF and RF coils and with the aid of a couple of Scotch Bright pads and WD-40 I was able to remove all the dirt and most of the corrosion. Inside the coils more fuzz. The power transformer top, the filter choke, and driver transformer got a cleaning and paint job. Over all it's looking much better!
The speaker took a trip over the bridge to NJ to see Rich Stamer (Sound Remedy). It sounded ok but at low volume the vc was rubbing on the pole causing some distortion and at high levels there was a buzz, might be a loose spider. In between the extremes it sound great!
While I was servicing the chassis the volume failed (open at the ground end) so I couldn't lower the volume much. Called Mark and got a replacement.
On the cabinet the baseboard was badly delaminated and I thought I might be able to reconstruct it but it was a lost cause. Steve "the tool man" Davis was contacted and said he thought he could reproduce one for me. The original was sent to MO.
Kenny Richmond got an order for some chevron grille cloth.
It's all coming together.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
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