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Product Details

Sandwich VFO Kit

The Original Sandwich supply disappeared.

Demand remained so this new single board Sandwich was designed.

This simple yet useful si5351a and Arduino Mini based digital VFO is a great addition to KN-Q7A and other single conversion SSB radio. The innovative one LED frequency display is amazingly easy to count and read the operating frequency. You don't need to solder the SMD part.

Instead of two boards with an Arduino Mini, it will be a single board with an Arduino Mini. It will be functionally the same as the Original Sandwich but will allow the use of either an Arduino Mini or an Arduino Nano with a special adaptor board.

Current Price:

$35.00 Price Complete Kit

$50.00 Assembled

$6.00 Circuit Board Only - NO PARTS

Download Manual

Sandwich VFO:                           Sandwich 2 VFO Instruction Manual

Calibration of Sandwich VFO:        Sandwich VFO Calibration

Please Specify IF frequency
Specify Frequency Band