51000 Rectifier, 5.5 amp, 24kv-piv. Convection Cooled, Open Construction High Voltage Rectifier. Individual board used in the 51050. It may be used in two's for lower power transmitters. Use as 24 KV PIV single string or as a doubler where 12 KV PIV per section is suitable. Conservatively rated at 5.5 Ampere. Direct replacement for CCA transmitters.