Operadio Mfg. Co. PA/Amplifier Schematics and Diagrams

Original
Manufacturer's
Radio Schematics
& Service Manuals:

Admiral

Airline

Apex

Atwater Kent

Crosley

Delco/United Motors

Earl Radio

Emerson

General Electric (U.S.A.)

General Electric (Canada)

Galvin (Motorola)

Magnavox

Majestic

Marconi

Montgomery Ward
(Includes Airline)

Philco

RCA Victor (USA)

RCA Victor (Canada)

Sears/Silvertone

Sparton (USA)

Sparton (Canada)

Stewart Warner

Stromberg Carlson

Westinghouse

Zenith

More Schematics

Test Equipment

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PA & Tube Audio

Operadio Mfg. Co. PA Schematics
for Tube Audio Amplifiers - Only $7.50!

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AND PRINT !

Operadio public address audio amplifire schematics for the models listed below are published service data from vintage sources*. Each schematic is individually digitized in high resolution to provide the clearest possible scan in a downloadable Adobe PDF file. Service file is usually 1 to f pages.

(Allow 1 - 3 business days for schematic to be digitized and download information to be provided)

View the list of schematics available for models below before placing your order.

Operadio Tube Audio Schematics
If your model or chassis is not listed below do not place an order for it.
contact me for availability first.

Download Copy Only $7.50

Enter Operadio Model Number:

Operadio PA/Audio Models/Chassis Available:

1A35
1A65
1A70
1A140
4A11
4A25
4A25A
4A25C
4M25
108 PA System
117 PA System
124, W PA System
132 PA System
135, W135, Type A, early/late
135, W135, Type A Late
140 Type B, Early
145, W145, Early
145 Type C
145, W145, Late
154
155
160, W160, Late
161
162
164
170
190
420B-6
813 Amplifier
817 Amplifier
822, 822P Amplifier
831 Amplifier
833 Amplifier
835
835 AUR
835 U
835 UR
870B
950
990
1005
1010
1010A
1012B
1180A
1025
A3580
A3585
A3590
E135, EW135
E145, EW145

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* Schematics offered here are digitized in high resolution from early radio service series published from the late 1920's through 1963. I stock over 70,000 schematics for hundreds of radio manufacturers. Each radio schematic is digitized individually and checked to provide the clearest diagram possible from the original printing.

Please Note: The data and files offered here are from vintage sources that are no longer published. There is no guarantee of the accuracy of any information offered. It is solely up to the end user to decide that the information and files purchased here are accurate and fit for use with their equipment. I am not responsible for any loss or damages that may be incurred from the use of this information.