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1Back to top Go down   Solid state resistor Empty Solid state resistor Tue Feb 21, 2017 4:44 pm

JGT

JGT
Platinum member
Platinum member
Not a 'K' question I'm afraid but but some one who is an electronics guru might be able to answer as the internet has failed me. 
I have a small Russian two stroke with 12v direct lighting, no battery. there is some form of solid state resistor in the brake light circuit, presumably, to stop surge blowing the bulb. Three connections power, earth and switch.  It has failed ie no circuit. Can any one point me in the direction of a suitable European alternative? John


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1992 K75
    

2Back to top Go down   Solid state resistor Empty Re: Solid state resistor Tue Feb 21, 2017 7:20 pm

wilcom

wilcom
active member
active member
k100virgin wrote:there is some form of solid state resistor

Zener diode maybe? I think the battery would be optional in the below diagram The Zener regulates the voltage in this ckt

Solid state resistor Tridiode


__________________________________________________
Joe Wilkerson
Telephone man with a splash of Data
Menifee, CA
1989 K100RS SE


past
1979 BMW R65
1980 BMW R65
1982 BMW R80RT (Gas hog)
1974 BMW R90/6
1972 BMW R75
1964 BMW R50 Earles forks( as reliable as a hammer)
2009 Buel XB12R (the FI sucked)
1999 Buell  (Yeah! a carburetor)
2005 Suzuki Bandit 1200
1991 Kaw ZX-11 OMG
1966 Norton 750 (had to have a chase car for anything over 5 miles)
1961 Norton 650' (see above)
1964 Honda 305 Superhawk
and a dozen or so I have forgotten about..........
    

3Back to top Go down   Solid state resistor Empty Re: Solid state resistor Wed Feb 22, 2017 7:22 am

Dai

Dai
Life time member
Life time member
I'm with Wilcom. Quite few versions of grey porridge had direct AC lighting with a DC brake light and horn powered direct from the battery. DC (battery) charging was provided by a zener diode - get one for a Triumph Bonneville or similar.

I like the red and blue on Wilcom's diagram - if you put a pair of anaglyph 3D glasses on it jumps out at you.


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1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

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