[R-390] building new components

[Les Locklear]

If I'm not mistaken, Hank Arney has oldham couplers available for sale.

Les Locklear
Gulfport, Ms.

Professional Curmudgeon & Equal Opportunity Annoyer

----- Original Message ----- 
From: <DJED1 at aol.com>
To: <paul at pdq.com>; <r-390 at mailman.qth.net>
Sent: Thursday, December 15, 2005 1:01 PM
Subject: Re: [R-390] building new components


> I'm inclined to agree with Paul.  There's a few items that are no  longer
> obtainable that also have the biggest impact on functionality.  IMO  these
> include the meters, the mechanical filters and the BFO and PTO.  I  think 
> you can
> buy repackaged Rockwell filters, but there is no source of meters  that I 
> know
> of.  And I see my PTO gradually deteriorating (the hermetic  seal 
> disappeared
> years ago) with no way to refurbish it.  If it  dies, the receiver is 
> dead.
> I did some thinking as to whether it was feasible to build a solid-state
> replacement that would go in place of the PTO, but couldn't find an 
> encoder with
> enough resolution.  It sure would be nice to have a PTO that really gave
> perfect 100 Hz readout over the whole 1 MHz band, even it it was (Gasp) 
> solid
> state.
> On the other hand, I think Fair Radio has piles of non-working modules 
> which
> are available to use for mechanical parts.  Obviously there are some
> shortages like Oldham couplers, but they should be easy to reproduce.
> Ed
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