RACAL 836 Universal Frequency Counter 32Mhz with 6 Digit Nixie Vintage

In good cosmetic condition and good fully working condition please see pictures.


All nixies are working, counter is working perfectly when used 1Mhz external input, however is measurement value is off approx. 10% when used internal counter and therefore will require calibration. I have had a peak inside and it’s all clean, no nixie poisoning or bulged caps, however this machine will greatly benefit from a full recap restoration.
I have tested this test equipment with 10Mhz / 50 Ohm 1.5Vrms sine and 1M Ohm input impedance and 1.2345 Mhz 3.3Vrms, it’s spot on with 1Mhz external reference.

This unit is particularly neat as you can select longer gate to gain more digits. Nixies are super bright and readable.

Please note that this is for machine only and does not come with Bulgin power cable which has to be purchase separately!
Serial number: 3915