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Singer Co (Metrics Division, Gertsch Dept) Decade Resolver Standard

USD $255

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Microdyne Model 1100-AR Telemetry Receiver w/3 Modules

USD $150

Model 1100-AR is a modular telemetry receiver, developed between 1969 and 1972 by Microdyne Corporation in Rockville (Maryland, USA). The receiver was aimed at the emerging lunar mission and satellite business of the late 1960s and early 1970s, but eventually became the workhorse for many tracking stations for the next three decades. Although it has since been succeeded by new designs, it is still widely used today (2019), mainly because of its robustness and reliability.

The receiver is fully modular and consists of a 4U 19″ rackmount enclosure that contains the basic circuitry, and has five bays for optional modules, which makes it highly customisable.

The two wide slots at the top are suitable for a CRT (spectrum) display or an RF field strength indicator, whilst the other slots are for the RF front-end (bottom right), the IF strip (centre) and a demodulator (bottom left). Depending on the application and the required frequency range, a selection of a range of modules and options could be installed in the 1100-AR mainframe.

Although the 1100-AR was primarily intended to be used as part of a satellite (or aerospace) base station, it was sometimes used as a reference receiver, an intercept receiver, and even as a surveillance receiver.

Included modules:

• 1155-D(A) Bi-Phase Modulator (working condition unknown)
• 1120 I(B)(3) Second IF Filter/Ampl (working condition unknown)
• Model 1116-VT(A)(N) RF Tuner 1650-1720 MHz (not receiving signal)

Full working condition of this unit is not known.

Stock: 1

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Microdyne Model 1100-AR Telemetry Receiver w/4 Modules

USD $275

Model 1100-AR is a modular telemetry receiver, developed between 1969 and 1972 by Microdyne Corporation in Rockville (Maryland, USA). The receiver was aimed at the emerging lunar mission and satellite business of the late 1960s and early 1970s, but eventually became the workhorse for many tracking stations for the next three decades. Although it has since been succeeded by new designs, it is still widely used today (2019), mainly because of its robustness and reliability.

The receiver is fully modular and consists of a 4U 19″ rackmount enclosure that contains the basic circuitry, and has five bays for optional modules, which makes it highly customisable.

The two wide slots at the top are suitable for a CRT (spectrum) display or an RF field strength indicator, whilst the other slots are for the RF front-end (bottom right), the IF strip (centre) and a demodulator (bottom left). Depending on the application and the required frequency range, a selection of a range of modules and options could be installed in the 1100-AR mainframe.

Although the 1100-AR was primarily intended to be used as part of a satellite (or aerospace) base station, it was sometimes used as a reference receiver, an intercept receiver, and even as a surveillance receiver.

Included modules:

• 1143-D Wide Band FM Demodulator (OK)
• 1161-S(A) Spectrum Display Unit (OK)
• 1129-I(B) Second IF Filter/Amplifier (condition unknown)
• 1114-VT(SYN) (works at 1420 MHz, issues w/keys bouncing)

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Pickett N904ES w/case

USD $129

12″/10″ Full Size Duplex Trig Slide Rule

Includes special multi-decade expanded scales, capable of an astonishing 20-60 decades of dynamic range.

Eye Saver yellow aluminum construction with black and red contrasting scales, very high quality, American Made, Pickett rule.  A very useful rule, ideal for many engineering tasks.

(18 Scales)
Front – K, A, [ B, T, S, CI, C, ] D, L
Back – K*, A*, [ B*, T*, S*, CI*, C*, ] D*, L*

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