[HBR] which receiver is THE BEST receiver

[N2EY at aol.com]

In a message dated 4/6/06 3:06:07 PM Eastern Daylight Time, 
amargosaent at iscweb.com writes:


> Depending on your personal drift requirement, my experience with
> a 20-tube W6TC design differs from your statement as follows -
> 
> 80 meters, ambient 65 deg F;  temp comp 7.2 pfd N750
> cold receiver/cold coil +2.02 kHz drift for 42 minutes to zero beat lock
> warm receiver/cold coil +1.07 kHz drift for 20 minutes to zero beat lock
> after initial zero beat lock 65 minutes zero drift to receiver shut-down

Meaning no disrespect, but....

2 kHz drift on 80 meters is, to me, a bit too much drift. It's very good for 
the W6TC-type design, but other GB designs can do a lot better.

> 
> All test data taken in 1968.  Coils had been extensively tested and
> temperature compensated with N750 capacitors; each coil set had
> at least a dozen test runs before the final N750 cap size was identified.
> The receiver uses the W6TC Hartley oscillator design, is built on a steel
> chassis with a 19-in rack mount front panel, cabinet with a fuly
> ventilated hinged top, zero backlash in the Eddystone 898 dial and
> variable tuning capacitor.
> 

What was used as the frequency standard?

73 de Jim, N2EY