[HBR] eBay NOS NATIONAL VELVET VERNIER DIAL ICN, Ham Radio (item 260023324900 end tim

[Walt Hutchens]

Tom said:
> I seem to recall that somebody was looking for a nice dial for an HBR.
>  I found this National ICN type on "that E site"... 
> 
> It's number 260023324900

That's a nice one, all right.   It was at $24 when I looked, last 
night.   

The issue with these dials is that they have a 5:1 ratio which is 
fine for coverage of the usual ham band if you are building a 
receiver for AM and CW only as was the usual case ~1960 but gives a 
VERY fast tuning rate for SSB -- over 200 kcs/revolution if covering 
all of 80-75M, for example.

I like the JB/Miller 6:1/36:1 two speed drives for this sort of 
application.   You can use them with a modified National dial or make 
your own dial, which could be as simple as a metal frame with a 
cardboard face.

Or, with a few more hours of work (hey, it's a hobby ...) you can 
make a sandwich consisting of a piece of your dial face, a 1/4" 
plastic spacer around the edges, a 1/32" plastic cover, and a metal 
frame as before.   Cut the metal frame so it overhangs the dial face 
at the upper corners, you can drill through the panel behind the 
overhangs to put in lamps (or LED's?).  A 3/32" plastic pointer fits 
easily in the 1/4" allowed by the spacer.   With careful work and a 
nice paint job (TEST ON A SCRAP BEFORE PAINTING PLASTIC) it will 
equal the best of them for both looks and function.  

Walt 
KJ4KV