RM-220 Replacement Rectifier/Metering Board for the Heathkit SB-220/SB-221 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.
Our Price $35.00 - Shipped in the USA - International shipping cost to be added. |
PS-220 Parasitic Suppressor Kit for the Heathkit SB-220/SB-221/HL-2200 Amplifier The PS-220 kit provides all of the components to eliminate parasitic oscillations that can have disasterous effects on tubes, plate tuning capacitors and the bandswitch. If your SB-220, SB-221 or HL-2200 arcs or spits during tune-up or normal operation, the PS-220 will help cure and stabilize the amplifier.
OUT OF STOCK - NO RE-STOCK DATE AVAILABLE Our Price $50.00 - Shipped in the USA - International shipping cost to be added. |
FM-220 Replacement Motor for the Heathkit SB-220/SB-221 The FM-220 is a direct replacement fan motor for the Heathkit SB-220/SB-221. The motor features "oilite" bearings for quiet operation. The motor is rated at 30% greater RPM than the original so it moves a bit more air than the original fan. This new fan motor is the best defense against tube failure due to overheating.
Our Price $50.00 - Shipped in the USA - International shipping cost to be added. |
FB-220 Replacement Filter Capacitor Block for the Heathkit SB-220/SB-221 The FB-220 is an upgraded replacement filter capacitor block for the Heathkit SB-220/SB-221. This product features high-quality computer-grade Cornell-Dubilier 210uF 450VDC electrolytic capacitors. The bleeder resistors dissipate about 30 watts less heat than the original Heathkit design so it operates a little cooler. The kit assembles into an easily-installed block.
Our Price $135.00 - Shipped in the USA - International shipping cost to be added. |
RY-220 Replacement T/R Relay for the Heathkit SB-220/SB-221 The RY-220 is a replacement T/R relay for the Heathkit SB-220/SB-221. It is a 3PDT relay with a 120V coil. A new mounting screw and rubber grommet is included.
Our Price $30.00 - Shipped in the USA - International shipping cost to be added. |
SK-220 Soft-Key for the Heathkit SB-220/SB-221 The SK-220 safely acts as an amplifier interface to your modern transceiver to the Heathkit SB-220 or SB-221. This unit is mounted inside the amplifier and transforms the 120VDC key closure to approximately 0.7VDC at 1.5mA. Without it you run the risk of severely damaging the keying circuit in your transceiver.
Our Price $27.00 - Shipped in the USA - International shipping cost to be added. |
SS-221 Soft-Start for the Heathkit SB-220/SB-221 The SS-221 limits inrush current during amplifier start-up by placing a small resistive load in series with the AC mains. The load is switched out of the circuit by the relays a few milliseconds later. The soft-start mounts inside the amplifier and safely limits inrush current to protect hard-to-find and costly-to-replace ON-OFF switches, tubes, filter capacitors and high voltage transformers.
Our Price $33.00 - Shipped in the USA - International shipping cost to be added. |
