Kenwood TS-520 / TS-520S / TS-530S / TS-820S / TS-830S HV 150uF 500V Filter Caps

Description

Kenwood TS-520/TS-520S/TS-530S/TS-820S/TS-830S HV 150uF 500V Filter Caps
I find the one component that deteriorates with time are the electrolytic capacitors. The HV power supply capacitors are under particular stress due to the approximately 900 volts applied to them. If these capacitors fail, there is a good chance of loosing the HV rectifiers in the process and the possibility of a power transformer going with them.
For those restoring radios, given the original capacitors are now between 25 and 35 years old, changing them now will likely keep these radio's going for a long time to come.
The replacement capacitors are
brand new made by
Nichicon
LGN Series
@ 105°C
are 150uF at 500volts.
These capacitors will fit the original mounting clamps perfectly.
The Kenwood kits also include two 470k 1 watt bleeder/equalizer resistors (500v rating) and two .01uf/1kV ceramic capacitors to completely renew the HV section.
These capacitors are higher in value than the originals, which will "stiffen" the HV power supply and consequently provide higher peak output power due reduced sag in high voltage on voice peaks. HV capacitors are wired in series, so 150uF/500v capacitors will result in 75uF at 1000V, which is a significant increase over the originals which only provide 50uF at 1000V.
Included in the kits are:
Qty 2  150uF/500v capacitors;
Nichicon
LGN Series
@ 105°C
Qty 2  470K ohm 1 watt resistors
Qty 2 .01uF 1kV disc ceramics
Installation guide for parts installation.
I have a wide variety of kits for Icom, Kenwood and Yaesu.  Capacitors used in the kit are
brand new Nichicon rated at 105 deg. C