What Is The Difference Between Code 121 and 122?

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What Is The Difference Between Code 121 and 122?

Chuck Schwark
Phorum Expert

Posts: 1,703
Threads: 55
Joined: Sep 2005
City: Evanston, IL

#7

07-18-2008, 02:31 PM

Production Change Notes usually extended a couple years from the introduction of a model. Some models had extensive changes. The Model 60, for instance, has numerrous changes spanning a few years. Many models had none.

Improved engineering designs, avalability of components or new style components, value changes for improved reception/stability, new/better tube changes, etc. caused changes for the most part.

Ron may have more insight as well . . . . .

Chuck Schwark,
The Philco Repair Bench
[Image: http://www.philcorepairbench.com/images/philog3tiny.gif]
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Messages In This Thread

What Is The Difference Between Code 121 and 122? - by Michael Dennis - 07-14-2008, 05:21 PM

[No subject] - by Carl Travis - 07-14-2008, 07:06 PM

[No subject] - by Michael Dennis - 07-14-2008, 07:30 PM

[No subject] - by phly guy - 07-17-2008, 12:17 AM

[No subject] - by Chuck Schwark - 07-17-2008, 09:40 AM

[No subject] - by Michael Dennis - 07-18-2008, 02:03 PM

[No subject] - by Chuck Schwark - 07-18-2008, 02:31 PM

[No subject] - by Ron Ramirez - 07-18-2008, 07:40 PM

[No subject] - by Michael Dennis - 07-18-2008, 08:27 PM

[No subject] - by Ron Ramirez - 07-18-2008, 10:23 PM

[No subject] - by Michael Dennis - 07-18-2008, 10:29 PM

[No subject] - by Michael Dennis - 07-18-2008, 11:24 PM

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