[Hallicrafters] My First Boat Anchor Restoration: SX101 MkIII

[Jim Wilhite]

Something easily forgotten is you can use a function generator to align 
stages  below 100 Kc. then use a regular RF for other schemes.  My 
function gen will go from near 0 up to 10 meg.  It is a later, SS, 
version but will do the job.  If you find one with the sweep function, 
all the better.

I use mine for all IF alignment in the sweep mode.  Mine cost 10 bucks 
at a decent hamfest.

Jim/W5JO


----- Original Message ----- 



> Two very fine signal generators are the General Radio 1001-A and the 
> military URM-25 series, both of which will go down to 50 KHz.  The GR 
> generator is big and not-too-heavy but because of its size, many 
> people turn up their noses at it.  The URM-25 can be pricey because 
> that's the one most everyone wants; and they often need some 
> restoration before they can be used.
>
> The military BC-221 and LM-series heterodyne frequency meters make 
> excellent signal generators; but they only go down to 125 KHz (some 
> early LMs only go to 195 KHz).  These units are only "calibrated" to 
> 20 MHz on HF; but don't despair.  They are perfectly usable to at 
> least 54 MHz on harmonics.  They are very stable and highly accurate. 
> And they are plentiful and CHEAP.
>