Home » VintageKustom.com » Repairing Kustom Amps » K200A-2 -- Very hot R1 (5W 200ohm)
K200A-2 -- Very hot R1 (5W 200ohm) [message #28886] Mon, 09 January 2023 11:53 Go to next message
claussoegaard is currently offline  claussoegaard
Messages: 27
Registered: July 2022
Junior Member
Quick question: Is it normal that R1 - the current limiting resistor for the pilot light - gets so hot that you will burn yourself if you touch it? I know it limits a lot of current, hence the 5W rating, but still curious?
Re: K200A-2 -- Very hot R1 (5W 200ohm) [message #28887 is a reply to message #28886] Tue, 10 January 2023 14:08 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4728
Registered: June 2004
Location: NY
Senior Member
Yes they do get that hot .
Re: K200A-2 -- Very hot R1 (5W 200ohm) [message #28888 is a reply to message #28886] Wed, 11 January 2023 09:13 Go to previous messageGo to next message
claussoegaard is currently offline  claussoegaard
Messages: 27
Registered: July 2022
Junior Member
Thank you Steve!
Re: K200A-2 -- Very hot R1 (5W 200ohm) [message #28890 is a reply to message #28886] Wed, 11 January 2023 13:33 Go to previous messageGo to next message
chicagobill
Messages: 2005
Registered: April 2003
Senior Member
Make sure that the pilot lamp bulb is rated for 28 volts. If you use a typical Fender type 6.3 volt bulb, the resistor will get hotter than normal.
Re: K200A-2 -- Very hot R1 (5W 200ohm) [message #28891 is a reply to message #28890] Wed, 11 January 2023 14:10 Go to previous message
claussoegaard is currently offline  claussoegaard
Messages: 27
Registered: July 2022
Junior Member
Oh good call, I could see someone unknowingly sticking a wrong bulb in there. Went to go check but that thing is screwed on TIGHT. Either that hasn't been unscrewed in 50+ years or someone way over tightened it (or both?), but it's stuck. Gonna have to try some solvents or something, unless you all have any other tips for that particular bezel?
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