BG104844343
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Geekcreit® Spectrum Analyzer USB LTDZ_35-4400M_Spectrum Signal Source with Tracking Source Module RF Frequency Domain Analysis Tool
US$36.54 US$49.99

Q: Can this function as a Grid Dip Meter?

Asked by devnuls on 2020-11-11 11:45:26

BG104844343 No, no way

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Geekcreit® Spectrum Analyzer USB LTDZ_35-4400M_Spectrum Signal Source with Tracking Source Module RF Frequency Domain Analysis Tool
US$36.54 US$49.99

Q: does this calculate VSWR? or at least Forward and Reflected voltage for SWR calculation?

Asked by Dr_Pedro on 2020-11-01 19:38:33

BG104844343 No not directly, but you can export the data to a spread sheet and extract the information yourself.

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2Pcs Classical TIP41C-JLH1969 Class A Dual Channel Single-ended Audio Amplifier Board
US$13.85 US$25.99

Q: how many watt output. do you have shell or plastic /metal for print.

Asked by FnarkOlog on 2019-01-04 06:21:53

BG104844343 Not correct. Class A is only 25% efficient. If you want 18W audio you must use a transformer that can provide 4A. the transistors must have a very solid heatsink as it will be dissipating 50 to 60W. Look up the original JHL 1969 article .

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X9C104 Digital Potentiometer Module Geekcreit for Arduino - products that work with official Arduino boards
US$3.39 US$9.99

Q: Hi how can I use it for volume adjustment in an amplifier?

Asked by GEORGE on 2020-01-13 06:50:59

tuckvk3cca It's linear, not suitable for volume control.

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