|Start||About Me||The Heathkit story||My Heathkits||Heathkit links||Other links|
The Frequency Counter IB-1103 came on the market in 1973 and was produced until 1977. It is the last and the most advanced frequency counter in the IB-1100-series*. The specification states that the upper frequency limit is 180MHz but it handles frequencies quite higher than that. It uses Nixie tubes to indicate the measured frequency. Later versions of Heathkit Frequency Counters (the IM-4100 series in 1977...1979 and the IM-2400 series in 1980...1992) used LED display to indicate the measured frequency.
*IB-1100 ( 30MHz )
*IB-1101 ( 100MHz )
*IB-1102 ( 120MHz )
*IB-1103 ( 180MHz )