[time-nuts] Austron 1120 questions
jpawlan at pawlan.com
Wed Jul 18 18:30:30 EDT 2007
On Wed, 18 Jul 2007, Björn Gabrielsson wrote:
> Just got my hands on a 1981 vintage Austron 1120. Nicely marked with
> serial number, 10MHz output freq, 15 VDC input. There are coarse and fine
> freq tuning.
> But the four solder pins are just marked E1, E2, E3, E4. With the E4 being
> the closest to the freq adjustments.
I too have one dated 4/81 and the previous owner hand labelled the pins.
I have not tested it to verify whether it was correct:
E1 10MHz out
E3 also +15
E4 DC return
I do not know why E2 and E3 are both tied together. Perhaps one is the
oscillator and the other is the oven.
Jeffrey Pawlan WA6KBL
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