Frequency Counters I have

Manufacturer
Model
S/N
Bandwidth
Performance (MHz@dBm)
int Accuracy [1]
Functional?
Have manuals?
Have A/C?
Have the battery?
Date acquired
Cost me
Source
Connectivity
Status
Comments
?? E0330 ?? 0-50MHz not tested yes online wall wart N/A 2015-04-?? $15 ebay, china ZIF flakey 5-digit counter for xtals
Agilent 53131A ?? 0-225MHz 225@-18 301@0 yes online IEC N/A 2016-10-19 $245, $30 handle+bumpers ebay BNCs, GPIB, RS-232 on cart totalize, 12 dig(10/s), GPIB, serial
Extech 380282 ?? 0-1MHz 1.5@0 yes pamphlet N/A 9V 2016-05-14 $60 De Anza banana, serial daily DMM DMM w/1MHz counter, square-wave source
HeathKit IB-1103 ?? 0-180MHz not tested formerly online weird N/A 2017-04-07 $55 TESLA (!) BNC ext ref, needs repair on input board Nixies! TCXO!
HP 5315B 2538A03741 0-100MHz 170@-20 170@0 TCXO 9999999.923671428 Hz mean yes online IEC N/A 2015-04-?? $30 De Anza BNCs on shelf ext ref switch inside. custom TCXO
HP 5316B 2708A00981 0-100MHz 101@-20 171@0 XO 9999999.923966667 Hz mean. Varies 20/mHz in a few minutes. could fit TCXO I made for 5315B yes online IEC N/A 2019-04-13 $50 flea @ Fry's BNCs, GPIB, testpoints Tweaked stock XO, not option 001. difficult GPIB. same depth as 16A? Bail feet
Racal 9915 ?? 0-520MHz 60/520 60@-40 75@0 78@10 520@-28 720@0 OCXO 1000000.0000861111 Hz mean tweaked. Gains 20mHz/day, smallest tweak gets that. hysteresis. Much better with 1MHz ublox as ref on 53131A vs Tbolt was wired for 240V not yet IEC internal, deadish 2017-05-13 $2 De Anza BNCs, testpoint rewired for 125V. many screws frozen. still needs cosmetic reconstruction. live count in burst mode, has prescaler _and_ multiplier, and OCXO, and AGC out?
Sabtronics 8100 ?? 0-100MHz 100@-17 147@0 160@13 Sweet spot appears to be 3.5795400MHz. That's embossed on the xtal. Probe capacitance accounts for 500mHz. drifts anyway wasn't online wall wart holders not connected 2017-08-12 $5 De Anza BNCs replaced 75492, 2x FND357 almost colorburst reference frequency
Systron-Donner 6150 ?? 0-50MHz 67MHz, 71@5 yes not yet IEC N/A 2017-05-13 $60 De Anza BNCs, combs Nixies! 8- and 9-digit optional. 2U rack mount. crystal? one of those counters that live-counts for a while, stops to display, then starts over
Tektronix CDC250 ?? 0-175MHz 212@0, 213@3 yes online IEC N/A 2014? $125? HSC BNCs loose BNC brought price down a little TCXO, totalize, ext ref
Tektronix CFG280 ?? 0-11MHz 89@-20 131@0 132@15 yes online IEC N/A 2014? $110? ebay BNCs can get about 7D resolution from 5D counter swept function generator, modulation inputs
Tektronix 2715 ?? 0.009-1800MHz not tested mostly online IEC N/A 2016-05-13 $260 ebay 75R F, RS-232 on cart 1Hz counter for tuned signal is broken
Tektronix DMM916 ?? 0-4MHz not tested counter works yes N/A 9V 1990? $300? Fry's banana shelved Flakey DMM w/4MHz counter
Manufacturer
Model
S/N
Bandwidth
Performance (MHz@dBm)
int Accuracy
Functional?
Have manuals?
Have A/C?
Have the battery?
Date acquired
Cost me
Source
Connectivity
Status
Comments
Fluke 1900A ?? 0.000005-80MHz 108@0 yes online IEC N/A 2018-04-06 $20 C&H, Duarte BNC Disposed at flea mkt 2018-09-08 GIFT OF/JOHN FLUKE/MAY 1986
HP 5316A ?? 0-100MHz 100@-12 190@0 192@6 yes online IEC N/A 2015-10-?? $40 ebay BNCs, GPIB, testpoints Sold flea market 2019-08-10 difficult GPIB, extref switch outside.

[1] Report as ppm? 10^-x? Actual standard measured?
Method? Measure internal reference against GPSDO? Measure GPSDO using internal osc?