Heathkit SB-220/1 Super Large Capacitor Bank + HV diode board. Kits with parts
Notice: I will be suspending sales for two weeks in early March for a short holiday. If you are rebuilding a Heathkit amplifier and the filter capacitors are looking a little shabby this is for you. I finally made a PC board for the larger Capacitor bank that I have been putting into SB-220s.
This kit has over double the original capacity of the original bank to give the old girl a bit more pep. It has to go in sideways compared to the original capacitors but because the caps are smaller, there is actually more room for ventilation.
It did require a new sheet metal housing, that is also included (professionally made, not by me). This more than doubles the original capacity of the filter bank and makes for a very clean install. The more robust power supply will probably not make much difference on CW but it can be significant on SSB where peak demand is more critical than average power.It includes the capacitors and the needed hardware for installation. You will need to drill just one hole in the chassis depending on the age of your SB-220/1 but it is not a difficult install (A dozen screws and 3 wires). The transformers do not need to be removed. The board layout will also accommodate other size electrolytic capacitors should you (or some future owner) ever decide to replace them. The bracket provides the holes for mounting the new HV-diode board on the front, in the same general location as the original. The HV -diode board is also included and is intended to be a replacement for the original board that came with the SB-220 and SB-221. IT IS A KIT , with all of the needed parts to populate the board included. This board includes a number of improvements over the original. It has connectors to allow the front panel to be removed or extended during service. The original pads are still present and can be used if connectors to the front panel are not desired. >A string of 1N5408 diodes for the voltage doubler (larger than the originals). >A filter cap across the high voltage output. >Diode protection for the plate meter. >A string of 1N4007 or larger diodes to replace the original Zener, including capacitors to filter the voltage.
This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". The seller is "iroriqm" and is located in Ramona, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Bermuda, Ecuador, Luxembourg, Paraguay, Reunion, Viet nam, Uruguay, Russian federation.
- MPN: Does Not Apply
- Brand: AG6YJ