Scott Mitchell, KB1SEL

Your World-Wide Source For Amateur Radio Amplifier Parts & Upgrade Kits

Your World-Wide Source For Amateur Radio Amplifier Parts & Upgrade Kits

RM-220 Rectifer Metering Board


SKU: RM220 Category:


The RM-220 is a replacement rectifier/metering board for the Heathkit SB-220 & SB-221. It features modern 1000PIV 3A diodes, new meter shunt resistors, a precision high voltage meter divider string and a high-current zener diode replacement string. The board also features built-in meter protection diodes.

Additional information

Weight 0.13 lbs
Dimensions 5.5 × 3.75 × 0.5 in