More Stuff I Forgot to List

15 views
Skip to first unread message

Dick Bingham

unread,
Jan 13, 2026, 8:29:25 PM (11 days ago) Jan 13
to PNWVHF
    10 - Microwave PCA's with SMT attenuators mounted (20, 6 and 5dB) Scrapped from
           HP-89431A (89431-66514 PCA)
    16 - 24-hole (0.1" center2center hole spacing - 2 rows of 12) ferrite feed-thru blocks. 
           20 turns thru the holes provides 9.6uHy measured using HP-4332A  - you
           calculate Al.
100's - Leaded Thermistors (~190 Ohms at room temp) 0.11: thick by 0.315" diameter
           (TC ~+1.18% / C) 
 
The above are free.

Make offer on HP-105A 5MHz frequency standard. $$$ or trade something

 Was originally used at the HP Lake Stevens Instrument Division as the 'house' standard.

The HP-105A is a classic, high-stability ovenized quartz frequency standard from Hewlett-Packard, providing highly accurate sinusoidal outputs at 5 MHz, 1 MHz, and 100 kHz, plus clock drives for timing, derived from a specially designed 5 MHz crystal, offering excellent short-term stability for advanced systems, navigation, and spectral analysis. It features phase-locked capability, can run on AC or DC, and the 'B' model adds battery backup, making it a versatile reference for precision timekeeping and frequency multiplication. 

73  Dick/w7wkr
Reply all
Reply to author
Forward
0 new messages