[Boatanchors] 51J's vs R-338's?

[peter markavage]

Ham Radio Mag., Feb. 1978, page 66, "Modifying your Collins 51J receivers
for SSB reception" or something to that effect.

Pete, wa2cwa

On Mon, 7 Nov 2005 20:23:29 +1100 "Brian A Clarke"
<brianclarke01 at optusnet.com.au> writes:
> Hi Pete,
> Can you point me to these articles, please?
> 73 de Brian, VK2GCE.
> 
> You said:> 
> > Ham Radio Mag had a Bill Orr article on replacing the 6BA6 BFO 
> tube in
> > the 51J3 and replacing it with a 6BE6 and adding and changing a 
> few
> > components to provide the BFO and product detector function. This 
> change
> > was done to the R-388 that I have and it works very well. With it, 
> you
> > don't have to ride the RF and audio gain controls all the time. 
> There's
> > also a number of MC-1496 balanced modulator product detector 
> circuits
> > floating around for various receivers that can be used in 
> boatanchor
> > receivers.