I've got a few myself and they ARE really that good. Easy to adjust, very stable, solid as a rock. I'm using one as the "gimmick" capacitor in a Heliax duplexer. Other than putting my hand near it, nothing seems to make it change capacitance.
The only odd thing about them is their mounting style. They just solder into holes in the circuit board. There's no mechanical (threaded-hole) mounting, but you could solder one end to a metal plate if required. Bob M. ====== --- On Mon, 5/4/09, skipp025 <skipp...@yahoo.com> wrote: > From: skipp025 <skipp...@yahoo.com> > Subject: [Repeater-Builder] Piston Cap Source (a good deal) > To: Repeater-Builder@yahoogroups.com > Date: Monday, May 4, 2009, 11:18 AM > Piston Cap Source (a good deal) > > Now that I've "got mine"... I'll happily share a source of > > low cost Piston Capacitors with the group. Hamtronics has > a clearance page at: > > http://www.hamtronics.com/sale.htm > > A49 Piston Trimmer Capacitor. > 1-11 pF trimmer suitable for adjusting oscillator freq or > general vhf/uhf tuned circuits. Very > stable ceramic material. > .....5/$2 (or 50$10) > > These are great caps for the price, should you want to > repair or build something new. The price is right... > > cheers, > skipp
