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SCAF audio filter build – Dhakajack
http://blog.templaro.com/scaf-audio-filter-build/
The filter bandwidth is controlled by two ganged 50k ohm potentiometers, with a section devoted to each filter stage. The center frequency is driven by dividing a time base by 100. A 555 timer outputing 70 kHz will result in a 700Hz center …
eHam.net
https://www.eham.net/reviews/view-product?id=12356
Describe your experience with the Aftronics Super SCAF Audio Filter and tell us why you give it the rating you did (required). Other useful information would include your experience with similar products, infomation on a product that you would purchase …
Ham Supply LogiKit SCAF-1 – Bandpass Filter
https://www.hamsupply.com/logikit-scaf-1-noise-filter/
Using a modern but little known technology called SCAF filtering, the SCAF-1 is an active audio low pass filter offering user control of the filter cut-off frequency, yielding a stunning 96dB per octave roll-off of signals above the cut off frequency, and no white noise. It is the perfect partner for your crystal or mechanical filters.
eHam.net
https://www.eham.net/reviews/view-product?id=12355
The AFTRONICS Super SCAF is the KISS-version of the MSC Smart Filter, less comfort but sturdy and excellent in selectivity! Both filters seem to be as rare as henteeth, so try one if you find one. In 2018 these are commonly sold for 85-95USD, however I was …
The Idiom Press SCAF-1 Audio Filter
https://www.hamsupply.com/wp-content/uploads/2016/07/SCAF_Review.pdf
3.5 kHz. The SCAF-1 rolls off, or atten-uates, audio signals at 96 dB per octave (audio frequency doubles or halves by octaves) above whatever cutoff fre-quency is set. Also of importance to me is the filter’s small size. It measures 315/16" W × 1/2" H × 51/16" D. Only one connection between the SCAF-1 and radio is required. A shielded cable from
Logikit SCAF-1 - the Deceptively Simple Filter
https://qrznow.com/logikit-scaf-1-deceptively-simple-filter/
Using a modern but little known technology called SCAF filtering, the SCAF-1 is an active audio low pass filter offering user control of the filter cut-off frequency, yielding a stunning 96dB per octave roll-off of signals above the cut off frequency, and no white noise. It is the perfect partner for your crystal or mechanical filters.
MSC Smart Filter - SCAF audio filter - YouTube
https://www.youtube.com/watch?v=Ysgtlx3xiHg
The MSC Smart Filter was produced between 20 and 25 years ago. For SSB you can set the low and high frequency cutoff points. For CW you can set the center fr...
Simple Lowpass CW SCAF Filter - QRPGuys
https://qrpguys.com/simple-cw-scaf-filter
We no longer have boards available. The QRPGuys Simple Lowpass SCAF Filter is an adjustable lowpass audio filter for cw that can be very helpful for a variety of receivers that lack the selectivity, or receive both sidebands simultaneously to narrow the audio pass band so individual cw stations can be heard more easily. It uses the MAX7427, 5th order, low pass, elliptic …
Super-Scaff - Formscaff.com
https://www.formscaff.com/products/scaffolding/super-scaff
Super-Scaff is a Kwik-Stage type scaffolding system with unique features such as clip on Ledgers and Bracing which makes it faster to install and dismantle, lighter to use and therefore more profitable. The system is based on the Kwik-Stage design and uses many of the Kwik-Stage components such as Standards, Jacks and Hook—on-Boards. The new uniquely designed …
Audio Filter Kit - MTechnologies
https://www.mtechnologies.com/misc/filter.htm
Super CW Filter Kit with 1W Audio Amp $29.95 . The Vectronics Super CW Filter kit is an inexpensive way to add sharp, narrow filtering to any transceiver or receiver. It works on the audio output from the receiver-- just connect it to the headphone or speaker jack. Connect your headphones or a speaker on the output of the filter and enjoy QRM free code.
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