TM503: Difference between revisions

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-[[File:Tek pg501 sc502.jpg | thumb | 300px | right | '''TM503 enclosure''' with [[PG501 | PG501 pulse generator]] and [[SC502 | SC502 oscilloscope]]]]
+{{TM500 mainframe
-The '''Tektronix TM503''' is a 3-bay mainframe for the [[TM500 system]].  All bays are low-power.
+|mfg=Tektronix
+|type=TM503
+|function=three-bay mainframe
+|image=Tek pg501 sc502.jpg
+|introduced=1972
+|discontinued=(?)
+|designers=Gunther Engert;Roger Stenbock
+|manuals=
+'''TM503'''
+* [[Media:070-1305-00.pdf|TM503 Instruction Manual 070-1305-00]]
+* [https://w140.com/tm503.pdf TM503 Technical Manual] (US Army)
-The '''TM503A''' has a swivelling carrying handle.
+'''TM503A'''
+* [[Media:070-6568-00.pdf|TM503A Instruction Manual 070-6568-00]]
-The '''TM503B''' also allows the power supply/backplane part to be removed from the case so that modules to be repaired on the bench without using extenders (see link below).  It also has openings for the [[TM5000]] GPIB feature, but not the connectors nor the power good signal for TM5000 plugins.
+'''TM503B'''</br>
+* [[Media:070-7808-00.pdf|TM503B Instruction Manual 070-7808-00]]
+}}
-==Option 2==
+All bays are low-power. It has a single strap carrying handle on the right side.
+The '''TM503A''' moves the power switch to the rear and has a swiveling carrying handle that can also act as a stand.
+The '''TM503B''' retains the power switch position and changes the handle material to plastic. It also allows the power supply/backplane part to be removed from the case so that modules to be repaired on the bench without using extenders (see link below).  It also has openings for the [[TM5000]] GPIB feature, but not the connectors nor the power good signal for TM5000 plugins.
+{{MissingSpecs}}
+===Option 2===
 Option 2 adds internal pin headers for each slot as well as rear 50-pin and BNC connectors, allowing for custom wiring to, from and between plugins.
 On the standard TM503, cutouts for three BNC sockets have been made in the rear frame, meaning that the user only needs to drill holes in the rear cover plate to install the sockets.
-==Option 7==
+===Option 7===
-Option 2 adds barrier keys (214-1593-02) and connections on the rear interface to allow connections between the [[DC502]]-option7 to either a [[TR502]] or a [[SW503]] such that the center or marker frequency of a sweep can be read of the DC502.
+Option 7 adds barrier keys (214-1593-02) and connections on the rear interface to allow connections between a [[DC502|DC502 Opt.7]] to a [[TR502]] or [[SW503]], such that the center or marker frequency of a sweep can be read of the DC502.
-==Manuals==
-* [http://w140.com/tm503.pdf Tektronix TM503 Manual (PDF)]
-{{MissingSpecs}}
 ==Links==
+* See [[TM503/Repairs|Repairs page]] for video and replacement PCBs
 * [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_500/TM503B/TM503B.html TM503B @ amplifier.cd]
 * [https://paulcarbone.com/blog/tektronix-tm-503-repair/ TM503 repair @ paulcarbone.com]
 * [https://www.electronicdesign.com/technologies/test-measurement/article/21137778/the-tektronix-function-generator-teardown The Tektronix Function Generator Teardown] - Paul Rako @ electronicdesign.com
+{{Documents|Link=TM503}}
+{{Documents|Link=TM503A}}
+{{Documents|Link=TM503B}}
+==Internals==
+The [[TM500 and TM5000 pass transistors|pass transistors]] on the low-power compartments are MJE2901 (151-0373-00, PNP) / MJE2801 (151-0349-00, NPN) − 60 V, 10 A, h<sub>fE</sub> 25 - 100.
 ==Pictures==
+===TM503===
 <gallery>
 TM503_open1.jpg      | TM503 inside
@@ Line 30: / Line 54: @@
 TM503_PSU1.jpg       | TM503 PSU
 TM503_PSU2.jpg
+</gallery>
+===TM503A===
+<gallery>
+TM503A_front.jpg      | TM503A front
+TM503A_top.jpg  | TM503A top
+TM503A_rear.jpg       | TM503A rear
+</gallery>
+===TM503B===
+<gallery>
 Tek_tm503b_front_plugins.jpg   | TM503B Front view with plugins
 Tek_tm503b_front_plugins02.jpg | TM503B Front view with [[PG502]], [[SG504]] and [[RO510]] plugins
 Tek_tm503b_front_noplugins.jpg | TM503B Front view without plugins
-Tek_tm503b_label.jpg           | TM503B internal view
+Tek_tm503b_label.jpg           | TM503B
 Tek_tm503b_side_view.jpg       | TM503B side view
 Tek_tm503b_rear_view.jpg       | TM503B rear view
@@ Line 44: / Line 79: @@
 Tek_tm503b_extender02.jpg      | Using a TM503B for repairing plugins
 </gallery>
-====Schematics====
+===Schematics===
 <gallery>
 TM503-schematic.png | TM503 schematic
@@ Line 51: / Line 86: @@
 </gallery>
-[[Category:TM500 mainframes]]
+[[Category:Manual needed]]
-[[Category:Introduced in 1972]]