[AMRadio] RE: Never ending receiver update!

[Gary Schafer]

Hi Brett,

You may want to try a string for the tuning reduction on the dial. You
can make it any speed you wish by the proper size pulley on the tuning
cap and drive shaft.

Another option is a large disk for the cap drive / dial  with a friction
drive on the edge.
Also an old arc 5 transmitter cap / dial  or one of the receiver caps /
dials might be just the ticket too.

As far as the band going dead I can sympathize with you. One day in the
early 60's I was on 80 talking to a guy that was about 20 over 9. I made
a transmission and turned it back to him. He wasn't there. No one on the
band. The band was stone dead. I spent the next couple of hours tearing
everything apart to find out what happened to my receiver, ant rly or
ant.

73
Gary  K4FMX


Brett Gazdzinski wrote:

> Hello all AM,ers.
> In an effort to make the receiver look better,
> I contacted Neil, of Almost all digital electronics to see if
> I could buy a betel for the digital display.
> He is sending one for free!
> Very nice of him indeed.
>
> I was not satisfied with the tuning on the receiver, the
> 8:1 ratio being too fast for me, after the 12:1 of the large
> national slide rule dial.
> So I hooked up two 8:1 vernier drives in series.
> I found it tunes ridiculously slow, so I replaced the
> 30 pf tuning cap with one that is about 100 pf.
>
> The receiver now tunes almost all of the ham bands on 80 and 40,
> but still tunes somewhat slowly....like a full turn of the knob
> to tune through an AM signal.
>