, and Lionel"O" gauge and Nos. 347, 352,353 and 354standard gauge.
The 7 position linear slide switch is at thetop front of the transformer and slides left and right. The detented positionsare indicated by the gold colored triangles. The line cord is made of twoseparate wires with black cloth on the outside. These are twisted together andexit the transformer case through a porcelain grommet that says Jefferson 1001. The other end has an old style plastic two-prong plug. The transformer caseis fastened to a square dish shaped bottom plate at four raised points near thecorners.
This may be a later version of the Midget Toytransformer. It has the same voltages and wattage. The model number is notmarked on the transformer but is on the box. The 7-position circular slideswitch is on the front instead of the top. The note stamped in the top says"100 to 120V. 50 to 133 CY."
The line cord is made of two separate wireswith black cloth on the outside. These are twisted together and exit thetransformer case through a porcelain grommet that says Jefferson 100 1. Theother end has an old style plastic two-prong plug supplied with a screw baseadapter for a lamp socket. The transformer case is fastened to a square dishshaped bottom plate at four raised points near the corners. The transformercase size is 2-3/4"H, 3-5/8"W and 4-1/16"D. Size including terminals,plate and slider knob is 3"H, 4-1/2"W and 4-3/4"D. Weight is 3.5lbs.
This modeldelivers 25 secondary voltages from 5-1/2 to 23 volts in 3/4 volt steps.Permanent voltages of 4-1/2, 9, and 13-1/2 volts. Will operate Ives trains--allstandard and "O" gauge outfits, Lionel trains--all standard and"O" gauge outfits, Christmas tree lighting outfits, up to sixteen14-volt lamps.
Delivers 25 secondary voltages from 1.2 to 30 volts in1.2-volt steps. Permanent voltages of 6, 12, 18 and 24 volts. Will operate alltypes of electrical trains up to the largest and most expensive, and should berecommended when extra cars and accessories are used with standard outfits.Will also operate Christmas tree outfits up to thirty two 14 volt lamps.
For 100 to 120V 50 to 133 CY. For Use OnAlternating Current Only. The 7 position circular slider switch is mounted onthe front of the transformer. The left hand terminals are numbered 1, 2 and 3.The right hand terminals are 4, 5 and R. Size is 4"H, 5"W and5-1/4"D.
Primary 100/120 Volts--50/60 cycles.Secondary voltage has a continuously variable control as well as fixedvoltages. Jefferson Electric Company, Bellwood, Illinois.
The pointer is mad of formed sheet metal andpainted black. It can be rotated to make contact with multiple voltage taps inthe semicircle for the different speeds. The green lamp lights when thetransformer is plugged in. The red light may indicate that the reset buttonmust be pushed.
The lamp cover can be removed to replace the lamps. Writing on the lamp is not perfectly clear. It could be 18 volt or possibly 28 volt. The open circuit voltage at the lamp socket is about 15 volts and the lamp is not that bright when it is on.
The base is threaded and is type E-10.
The left pair of taps provides a variablevoltage from 8 to 16 volts.
The center pair is 9 volts.
The right pair is 9 volts for the whistle.
The transformer is 3-3/4” high, 4-3/4” wiadand 4” deep. Rating ia 115 volts, 50/60 cycle alternating current only.
This is undoubtedly a later design and with the newJefferson address. Capacity 50 Volt-Amps, Primary volts 115, cycles 50/60,Maximum current capacity of secondary winding 2 amps. Serial number stamped inthe plate is 218126.
The top cover can be removed to select the connectionsfor the desired voltages. The two primary connections are in the top section.The four secondary connections are in the bottom section. A 35 ohm 25 wattcontrol is mounted in the top cover (not shown). The control shaft is 2"long and has a screwdriver slot at the end. A 3-prong Amphenol socket ismounted on the right bottom side. I found two rectifier diodes mounted on acircuit board inside plus a 500 mfd 50V-filter capacitor (at the bottom). Thecontrol appears to have been added by someone at a later date. I don't know ifthe rectifiers, capacitor and socket are standard or were also added by someonelater. The diodes and capacitor provide a filtered DC output for the secondarytransformer voltages. The control provides a continuously variable voltage forthe transformer taps selected.
The transformer has brackets at each end atthe bottom. There are holes and slots where it can be permanently mounted to aboard. Height (including brackets) is 3-7/8", width is 4-3/16 and depth is(including brackets) 8-5/8".
Catalog No. 721-101-100 OutdoorNon-Weatherproof type. Pri. 120V 60HZ. 160VA. Sec. 5000V 30 mA. Sec. StartGrounded. A9001 may indicate a date of manufacture of 1990. MagnaTek JeffersonElectric. The transformer case size is 3-5/8"H, 3-1/8"W and4-5/8"D. Depth including terminals is 7-3/8". Weight is 6.7 lbs.
Catalog No. 721-111 Outdoor Non-Weatherproof type.Pri. 120V 60HZ. 450 VA. Sec. 15,000V 30 mA. Sec. Midpoint Grounded. J7405 mayindicate a date of manufacture of 1974. Jefferson Electric, Division of LittonIndustries, Bellwood, Ill.
Catalog No. 721-131 Outdoor Non-Weatherprooftype. Pri. 120V 60HZ. 180 VA. Sec. 6000V 30 mA. Sec. Midpoint Grounded. A/Cpower cord has been added. Measures about 8" x 3" x 4". Thistransformer was removed from a neon sign assembly.
Catalog No. 725-151-700 OutdoorNon-Weatherproof type. Pri. 120V 60 Hz 225 VA. Sec. 7500V 30 mA. Sec. Midpoint Grounded.The A8709 probably indicates a date of manufacture of 1987. Size 3" X3-1/2" X 9". Weight 12 lbs.
Catalog No. 725-141-041 OutdoorNon-Weatherproof type. Pri. 120V 60Hz 270 VA. Sec. 9000V 30 mA Sec. MidpointGrounded. The m 95 05 probably indicates a date of manufacture of 1995.
Thisearly bell-ringing transformer is a single block of white glazed porcelain1/4" thick that's open in the back. The transformer is inside and iscovered with a tar potting material. A metal mounting bracket is attachedthrough holes in the porcelain sides. The words "Pat'd Dec 1, 1925 U.S.A.3-31" are stamped in the bracket. This is probably the date of March 1931.7" insulated primary wires are brought out through two other holes. Twosecondary binding post terminals are at the other end. Cast into the porcelainin raised letters are "Line 110 volts 50/133 cycles" at the primaryend and "Bell 10 volts" at the other end. In the middle is"Jefferson Bell Ringing Transformer, Chicago. Size of the porcelaincontainer is 3-1/8 X 3-1/8" X 1-7/8"
Catalognumber 230-101. Made by Jefferson Electric Company, Bellwood, Illinois. Here isa later bell-ringing transformer. It has two 5-1/2" primary wires on oneside and two secondary screw terminals on the other side.
Size is 2-1/2" high, 2-1/4" wideand 2" deep. Weight is 3/4 lbs. It is painted black. Capacity is 5 watts.It has a UL approval seal.
Catalog No. 637-271. Made by Jefferson Electric. Thisindustrial control transformer is rated at 50/60 Hz. Primary 120V, Secondary24V at 150 VA (6-1/4 amps). The number on the label is W8205, which may be thedate of May 1982. Case color is blue-gray and the core is black. Primary wiresare 7" long made by Belden. The transformer is UL approved. Size4-1/8"H, 3-1/4"W and 4-3/8"D (including threaded wire exit).Weight is 6 lbs.
Catalog No. 216-1421. Made by Jefferson Electric,Division of Litton Industries, Bellwood, IL. This dry type transformer is in agray steel case. The transformer is potted in a sand/epoxy mixture. It is ratedat 50/60 Hz single phase. High volt is 240/480V and low volt is 24/48V at250kVA (24V at 10.4