Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration    Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration

A nice looking, fairly clean SB-200. Un-modified for the most part. Some previous owner replaced the original fan with a box fan. Reading about 1800 V should be 2400 V.
Looks like the original HV board and caps. One of the diodes has be replaced with a disk capacitor.
Could explain the low HV. One is good, one is bad.

The T/R relay closes as soon as you turn the unit on. That lead me straight to the tubes. I marked it with an X on the base. That's the extent of my testing.

Don't forget to remove before powering it up. There could be other issues with the unit that are yet to be discovered.
Will require maintenance sooner or later. The item "Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration" is in sale since Saturday, July 21, 2018. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". The seller is "raptor7x" and is located in Covington, Georgia.
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, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia.
  • Model: SB-200
  • Brand: Heathkit

Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration    Vintage Heathkit SB-200 1KW ham Radio Linear amp for restoration