The other tuner in the Series 20 line was the F-28. It differed in appearance and price (lower) from the F-26, but was still a superb performer. It employed Pioneer's Photo Logic Synthesizer/Quartz Locked system and "Clean Pilot" circuitry. It also used the Parallel Balanced Linear Detector and featured selectable Wide/Narrow IF Bandwidth. The circuitry used a 5-gang variable capacitor for higher tuning accuracy to improve image response, spurious response and IF response ratios, all having 120 dB or better.
Its signal to noise ratio in mono was 84 dB and in stereo 81 dB.
The only visible scraches are located at upper edge (top of the unit). Other than that is in perfect condition, everythink works. Non smokng home. You can check my positive feedback under zaba67 on eBay