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LARGE ANALOG DEMONSTRATION MULTIMETER
This is great for educational demonstrations. Unit has a
plastic housing that is 12 inches high by 12 inches wide
(including the control knobs) and 3-3/4" thick. Huge
scale is 9" x 4". Includes 12 interchangeable scales as
follows: 0-5V DC, 0-10V DC, 0-300V DC, 5-0-5V DC, 0-
15V AC, 0-50V AC, 0-10mA DC, 0-100mA DC, 0-5A DC,
0-50mA AC, 0-500mA AC, and 0-1A AC. Basic move-
ment is 5mA, 100mV. Frequency range is 10Hz to 20KHz. Has zero adjust
knob on the side as well as clamp to protect the needle. New/Unused.
R3100D $175.00
HEPPNER 3" SPEAKER
Quality speaker with heavy duty magnet. Made by the
Heppner Manufacturing Company. Marked: "7501-
2319" and "57550". That's all we know. Mounting ring
has 4 holes and is 4-1/2 inches diameter.
R3169 $3.50
Reticles
MOUNTED RETICLE, 22MM CLEAR DIA
The top outside diameter is 37mm and the rear
threaded outside diameter is 30mm and the assembly
is 17mm long. Front and rear clear diameter is 22mm
and there is an elaborate reticle pattern in the center.
The reticle pattern consists of a + sign with vertical
dashes which span through a series of 8 horizontal
dashes with every other horizontal line marked with
the numbers 8, 15, 24, 32. The horizontal dashes end here and the vertical
line terminates with the number 42. Have no idea what application this reti-
cle was used for but it looks military.
L3126 $4.00
SQUARE VERTICAL HAIRLINE RETICLE
12mm square. Designed to be used with a military aiming circle. Made up of
2 pieces of optical glass. Refractive index of 1.5230 and 1.5838. Abbe con-
stant of 58.6 and 46.0. Unused in original packing.
M1428 $3.50 or 10 for $25.00
Page 134 - Reticles
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