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Tim's Goodies for Sale
#2
LCR740 Bridge

[Image: LCR740%20Bridge.PNG.opt426x317o0%2C0s426x317.PNG]

A classic impedance bridge. Measures resistance, inductance and capacitance. Reactances are measured at 1 kHz when using the internal oscillator, or up to 40 kHz with an external sine wave source. Quite impressive specs for the day:
  • Resistance: 1 mOhm to 11 MOhm.

  • Capacitance: 1 pF to 11 mF.

  • Inductance: 100 nH to 1100 H.
Basic accuracy ±(0.5 % + 0.1 % f.s.) at the lowest ranges. Also measures dissipation factor and quality factor.
The user adjusts the internal bridge such that the two branch impedance's are balanced. This is indicated with a null meter.
User manual

Geloso VFO

Cryistal Desktop microphone, ex Sakkie + assorted varible caps and headphones

Sub Modulator G59703 condition unknown

Homemade Signal Generator - Works 


Working 400 Watt Linear Amplifier

Halicrafters S40 Coms Receiver - Working, c/w Power Supply and Transmitter
[Image: 20180419_203951_resized.jpg.opt690x517o0...90x517.jpg]  [Image: 20180419_203958_resized.jpg.opt690x517o0...90x517.jpg]
Receiver
[Image: 20180419_204316_resized.jpg.opt690x517o0...90x517.jpg]
AM Transmitter - Requires work
ZS6BPA AM813
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Messages In This Thread
Tim's Goodies for Sale - by zs6sky - 20-04-2018, 08:09 PM
RE: Tim's Goodies for Sale - by zs6sky - 20-04-2018, 10:12 PM

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