Tools & Test

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Test Equipment

I/O Tester Part No 452400

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This tester was used for repair and diagnostics of the following machines. Each machine had it's own overlay so that the lamps and switches were relevant to that machine.
1442-N1, 2501, 2501B, 2520, 1443-N1 2821, 1403, 2540, 2841, 2314, 2844, 2826, 2701, 2250-II, 2671
We have three I/O testers with overlays.

Tape Testers

S_p000276.jpg (56996 bytes)We have a number of tape testers for different manufacturers tape units  starting with the oldest:
IBM 2400 Series


IBM 3420 Series
Telex 6420 Series
Memorex 32xx

Disk Drive Exercisers
ISS Univac

Field Engineering Handbooks
I am sure many of you remember these handbooks. I have tried to collect as many as possible but am always on the lookout for more. The current collection is listed bellow with a few pages of the type of content.
System/360 General    SY22-2851-1

System/360 Model 40 SY22-2852-0
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Page 6. 2040 Selector Channel Data Flow

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Page 7. Model 40 Data Flow


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System/360 Model 50 SY22-2855-0

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System/360 Model 65 Z25-0501-2

Channels 2860/2870/2880 Maintenance Reference Summary SY25-5005-1
System/360 Models 65,MP65, 67, 75, 85 Diagnostics SY25-5000-1
Diagnostic Monitor Reference Manual 229-2125-1
System 370/ Model 145 S229-2239-2
System 370/\Model 168 SY25-0511-1
3033 Processor Complex Maintenance Reference Summary SY25-0522-0
3090 Processor Complex Maintenance Reference Summary SR28-0634-0
General CE tools Reference Summary S131-0075-4
System/370 Operators Reference Guide SR20-4460-2



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This page was last edited on 27/03/00