07-18-2016, 03:03 PM
I took a break from the Z 8G005 I’ve been struggling with to take a look at the Philco 50 chassis (schematic link) that I picked up at Kutztown. The speaker (an 8” S type) cone is in decent shape, but unfortunately the output transformer primary is open. The voice coil and field coil both show continuity.
Power transformer also seems to be OK at least as far as continuity goes.
Leads 1 &2 = 12 ohms
Leads 8 & 10 = 540 ohms
Leads 6 & 7 = < 1 ohm
Leads 3 & 5 = < 1 ohm
The ON-OFF switch seems to be permanently open
[Image: https://www.dropbox.com/s/heydx7v48a06ht....jpg?raw=1]
The chassis is not as bad as I thought it was going to be; the tuning cap is a bit rusty, there are some chassis rust spots and it’s pretty dirty. The usual mouse nest and sunflower seed shells were in the cabinet under the chassis.
[Image: https://www.dropbox.com/s/wl12gx50jxma6r....jpg?raw=1]
[Image: https://www.dropbox.com/s/1doa8c7nq43fbk....jpg?raw=1]
[Image: https://www.dropbox.com/s/32avswvwlnecrw....jpg?raw=1]
[Image: https://www.dropbox.com/s/nosn6gdqh3fm8v....jpg?raw=1]
Next some general housekeeping and check the coils.
Power transformer also seems to be OK at least as far as continuity goes.
Leads 1 &2 = 12 ohms
Leads 8 & 10 = 540 ohms
Leads 6 & 7 = < 1 ohm
Leads 3 & 5 = < 1 ohm
The ON-OFF switch seems to be permanently open
[Image: https://www.dropbox.com/s/heydx7v48a06ht....jpg?raw=1]
The chassis is not as bad as I thought it was going to be; the tuning cap is a bit rusty, there are some chassis rust spots and it’s pretty dirty. The usual mouse nest and sunflower seed shells were in the cabinet under the chassis.
[Image: https://www.dropbox.com/s/wl12gx50jxma6r....jpg?raw=1]
[Image: https://www.dropbox.com/s/1doa8c7nq43fbk....jpg?raw=1]
[Image: https://www.dropbox.com/s/32avswvwlnecrw....jpg?raw=1]
[Image: https://www.dropbox.com/s/nosn6gdqh3fm8v....jpg?raw=1]
Next some general housekeeping and check the coils.
