15Mc/s converter, for frequency measuring equipment
15Mc/s converter (for frequency measuring equipment) type TSA851 serial no. L2359, by Venner Electronics Ltd., New Malden, Surrey, England, division factors 1, 10 and 20
Frequency and time measuring equipment type TSA3436/2 serial no. M3790 and 15Mc/s converter, by Venner Electronics Ltd., New Malden, Surrey, England, with 6-digit readout using optical projection modules and ranges from 15c/s - 1.1Mc/s in frequency mode
15Mc/s converter (for frequency measuring equipment) type TSA851 serial no. L2359, by Venner Electronics Ltd., New Malden, Surrey, England, division factors 1, 10 and 20
Frequency and time measuring equipment type TSA3436/2 serial no. M3790 by Venner Electronics Ltd., New Malden, Surrey, England, with 6-digit readout using optical projection modules and ranges from 15c/s - 1.1Mc/s in frequency mode