http://www.steve-dez.us/antiques/items/zenithconsole/zenithconsole.html
(You can see this is quite a project!)
According to the schematic there are quite a few caps
that share the same item number:
3 C11's, etc etc
These caps are of different values.
This is my first Zenith rebuild and was wondering if this is typical.
I've been well documenting this rebuild, and have made a component
location map for future use.
I've been labeling these as (example:) C4(1) C4(2),
C11(1) C11(2) C11(3)
Was Zenith really that careless?
Thanks for your response and happy holidays:
Steve & family
C11 in your Zenith should be .005 mfd caps. Could someone have substituted some of these caps? In most circuits cap values aren't critical. The modern value for .005 would be .0047 mfd.
Norm
:I have been busy rebuilding a Zenith console
:
:http://www.steve-dez.us/antiques/items/zenithconsole/zenithconsole.html
:(You can see this is quite a project!)
:
:According to the schematic there are quite a few caps
:that share the same item number:
:3 C11's, etc etc
:
:These caps are of different values.
:This is my first Zenith rebuild and was wondering if this is typical.
:I've been well documenting this rebuild, and have made a component
:location map for future use.
:
:I've been labeling these as (example:) C4(1) C4(2),
:C11(1) C11(2) C11(3)
:
:Was Zenith really that careless?
:
:Thanks for your response and happy holidays:
:Steve & family
From this information I can assume that Zenith was mainly
concerned with labeling components by value, rather than
component identification for layout.
I've also noticed that several resistors carry the same ID number.
I'm making a component location diagram of the chassis, and this
scheme makes it somewhat more difficult.
Also, if you've seen the pics from my project, you can see that
I have quite a job on my hands.
http://www.steve-dez.us/antiques/items/zenithconsole/zenithconsole.html
Just finished polishing the chassis and rebuilding the tuning cap.
Aligning those gang sections are surely a time consuming job!
See my pics at the bottom of the page.
Any suggestions on low cost replacement wire that will last for years?
This chassis requires rewiring, as the original wire insulation is baked
and cracking/falling off.
I've bought some spools of wire from RadioShack but this stuff seems
really cheap. (Must be made in China!)
Thanks for the tip!
Steve
Zenith used a lot of rubber covered wire. Insulation cracks and falls off over the years. Even cheap Radio Shack wire is better than this.
I use mostly teflon covered wire. Costs more but will last forever. Even a soldering iron won't damage the insulation.
Some schematics indentified components by value rather than location. If a radio had several .05 mfd caps they would all be labeled the same.
Norm
:Thanks Norm.
:
:From this information I can assume that Zenith was mainly
:concerned with labeling components by value, rather than
:component identification for layout.
:
:I've also noticed that several resistors carry the same ID number.
:I'm making a component location diagram of the chassis, and this
:scheme makes it somewhat more difficult.
:
:Also, if you've seen the pics from my project, you can see that
:I have quite a job on my hands.
:
:http://www.steve-dez.us/antiques/items/zenithconsole/zenithconsole.html
:
:Just finished polishing the chassis and rebuilding the tuning cap.
:Aligning those gang sections are surely a time consuming job!
:See my pics at the bottom of the page.
:
:Any suggestions on low cost replacement wire that will last for years?
:This chassis requires rewiring, as the original wire insulation is baked
:and cracking/falling off.
:I've bought some spools of wire from RadioShack but this stuff seems
:really cheap. (Must be made in China!)
:
:Thanks for the tip!
:Steve