[Boatanchors] Want to Buy 3-gang Tuning Capacitor

[RODNEY HOGG]

Mike,
May not be what you are looking for but, I have some 3 section capacitors 335pf each section, with 4 27pf sections ganged with the 335s.  Also has mica trimmers approx 10pf mounted with them.  Has a gear reduction tuning with 1/4" (6mm) shaft about 1/2" long.  Made to PC mount but, has holes in front and rear for 3mm screw mounting.  New, don't know what they are for, probably some fairly high-end AM/FM tuner?  Small, 3 1/2" long, 1 1/2 wide, 1 1/4 deep. (?) plus Postage....
73
Rod
K0EQH
 

----- Original Message -----
From: "MICHAEL BITTNER" <mmab at cox.net>
To: "Rob Atkinson" <ranchorobbo at gmail.com>
Cc: "Boatanchors" <boatanchors at mailman.qth.net>
Sent: Sunday, August 14, 2022 5:39:53 PM
Subject: Re: [Boatanchors] Want to Buy 3-gang Tuning Capacitor

Hi Rob,
Each section must have 450 pF maximum capacitance.  It's for tuning a superhet receiver's antenna, RF and oscillator stages.  3/8 and 1/4 inches shaft diameter is typical for these capacitors and voltage rating is not important in this application.  Since it's a homebrew, I'll make it fit.
73, Mike W6MAB


> On August 14, 2022 at 5:11 PM Rob Atkinson <ranchorobbo at gmail.com> wrote:
> 
> 
> I doubt if I have it because I don't have any 3 section jobs but it
> isn't clear to me if 450 pF is the total for all three sections or the
> total for each section.  Also, you should give a voltage rating.
> "Boatanchor project" doesn't tell me if it's a transmitter or
> receiver.   I'd also provide acceptable shaft size and dimensions so
> you don't get something that won't fit.
> 
> 73
> Rob
> K5UJ
> 
> On Sun, Aug 14, 2022 at 3:48 PM MICHAEL BITTNER <mmab at cox.net> wrote:
> >
> > I need a 3-gang tuning capacitor for a homebrew boatanchor project. All three sections must be 11 - 450 pF with counter-clockwise rotation for increasing capacitance. Older large 1930s style preferred (Meissner No. 21-5142B would be perfect) but any other with 450 pF maximum capacitance and proper rotation may work. Hope someone has one in their junk box that they can part with for a reasonable price.  Mike, W6MAB
> >
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