[time-nuts] General Technology Corp model 304b

[Marco IK1ODO]

I have a working GTC 304 too. Mine is marked "Sperry s/n 002" (!!) 
but has another GTC s/n inside the cover. Mine also locks in one 
hour, time for the xtal oven to reach temperature.
It is installed in my frequency standards rack at work. If Ed needs 
any info, let me know. I never dismounted the Rb cell, since it works... ;-)

73 - Marco IK1ODO